Yet Another 2005 Prediction List

Flex overview

From OOP to Service-Oriented - Do you get it yet?

developerWorks : Blogs

Microsoft and Domain Specific Languages

M$ just issued the concept of software factory and Domain Specific Languages that will be a big impact to some existed design language such as UML, the author of this article is one of 3 founder of UML & Rose, he said that he is quite disappointed with it.

systemwebmail.com
good site to introduce the webmail in .net framework

Some delphi guys complain that there are no class reference in java and .net, such as

type
BaseClass = class constructor Create; virtual;
...
end;

BaseClassRef = class of BaseClass

DerivedClass1 = class (BaseClass )

DerivedClass2 = class (BaseClass )

RegisterClass(DerivedClass1);
RegisterClass(DerivedClass2);
...
var
AClassRef : BaseClassRef ;
begin

//the class name can be stored in a configuration profile
AClassRef := BaseClassRef(FindClass('DerivedClass1'));
...
end;

Now, we could do the similar thing with a java IOC framework PicoContainer.

Interface BaseIntf

class DerivedClass1 implements BaseIntf

class DerivedClass2 implements BaseIntf

public void () {
MutablePicoContainer pico = createPicoContainer(null);
pico.registerComponentImplementation("DerivedClass1",DerivedClass1.class);
pico.registerComponentImplementation("DerivedClass2",DerivedClass2.class);
...

//the class name can be stored in a configuration profile
BaseIntf t = (BaseIntf) pico.getComponentInstance("DerivedClass2");
assertNotNull(t);
}


PicoContainer has .net portion too.

ASP.NET: 10 Tips for Writing High-Performance Web Applications -- MSDN Magazine, January 2005

MyGeneration - Home

A very good open source code generation tools for DotNet

a good chinese article about hibernate and spring

ODP.NET Tip of the Month

Spring.NET - Application Framework

http://www.springframework.net/doc/reference/index.html

This release contains a lightweight container with IoC / Dependency Injection functionality comparable to that found in the Java based Spring framework. Highlights include

1. Constructor and Setter based Dependency Injection
2. Factory method creation
3. Inheritance of object definitions
4. Support for .NET application configuration files
5. Event wiring
6. Autowiring of collaborators
7. Singleton/Prototype creation modes

pinvoke.net: the interop wiki!
It is a site that attempts to address the difficulty of calling Win32 or other unmanaged APIs in managed code

use IOCP in thread

use IOCP in socket

IOCP is most efficient method in Win32 thread and Socket programming, but it requires much more work.

Contexts in .NET: Decouple Components by Injecting Custom Services into Your Object's Interception Chain -- MSDN Magazine, March 2003

Aspect-Oriented Programming Enables Better Code Encapsulation and Reuse

ContextBoundObject is a nice way to implement AOP in DotNet, but it is a little expensive.

DHTML Menu 4 (WebFX)
version 3 allowed menus to cover windowed controls,
version 4 can be displayed outside the physical boundaries of the browser window.

MyXaml - Home
a Open source XAML framework, it is based on Winform.

Debugging Memory Problems

Performance Counters for ASP.NET

URLDownloadToCacheFile

A very useful Windows platform API, it Downloads data into the Internet cache and returns the file name of the cache location for retrieving the bits. it is widely used by auto-upgrade of rich client application.

Manageability - Open Source Workflow Engines Written in Java

ActiveWidgets :: dhtml grid, javascript tables, .net datagrid, asp controls, php widgets
This controls set includes a scrollable javascript grid that looks like win 32 grid, it could be used in open source project for free, but not in commercial project.

Open-Source ADO.NET XML Provider -- WilsonXmlDbClient v1.0
Although the regular ADO.net DataSet has some methods such as ReadXml, WriteXml, but they are not good enough to handle complex XML document


SOA Editor from capescience.com
a tools to edit WSDL file, but it seems as if this tools doesn't support asp.net web service

Accessing and managing MS Excel sheets with Delphi [page 1/7]

Microsoft products using the .NET Framework

MicroStrategy vs. Cognos Quick Tour

ASP.NET Development Center Home: Using HTTP Modules and Handlers to Create Pluggable ASP.NET Components

PicoContainer - Five minute introduction to PicoContainer

.NET Tools: Ten Must-Have Tools Every Developer Should Download Now -- MSDN Magazine, July 2004

MSDN TV: Using the WS-I Test Tools

Understanding the WS-I Test Tools

Download WS-I Testing Tools - Final

GC Performance Counters

Code Generation with Codesmith

I did a little bit survey about the Microsoft reporting service tools; Here is the detail.

1. This tools need a SQL server instance to store some application Meta data for internal use. But it can use oracle as data source for reporting. It is basically free if we have an sql server license.

2. This tools includes a simple query builder and a report layout designer, we could use report layout designer to visually adjust the report layout and some format stuffs such as the column width, Font. The report layout designer will generate a RDL (report definition language) script based on the outcome of designer GUI, the report query is embedded into RDL script too, and we could modify the RDL script manually or Programmatically.

3. This tools includes a report server that do the query&format based on the RDL script we made by report layout designer, the server will retrieve the data and format the report according the output type we specified, output type could be web page, excel or PDF.

4. This tools use RDL script as the interface between the report design GUI and report build&format engine, this way would improve and shorten the process of the design and creation of a brand new report.
But the RDL also bring some drawback, the first thing is that this tools only provide some basic RDL syntax, (RDL is a kind of extensible script, the different development tools vendor could add their own predefined syntax into it). So the reporting build&format engine can only recognize the syntax they have, if we have some complex reports that need some special format effect, this tools cann't accomplish it.
There are a simple workaround for this issue, we could use this tools to do the basic layout and simple formating, and develop another module to do the complex formatting based on the excel file built by this tools.

Introducing the Microsoft reporting service in MSDN TV

Reporting Services Programming

Web Services Developer Center: An Introduction to the Web Services Architecture and Its Specifications

System Unit: Why is Delphi 2005 the "must have" upgrade for Win32 developers?

All Things Distributed: HPTS Day 2: How are databases used at big customers?

Wiki software - Wikipedia, the free encyclopedia

Object Relational Tool Comparison

benjaminm's blog - How to send attachments with Web Services today

Understanding Oracle OLAP Dimensions And Cubes

GMail Drive shell extension-Converting GMail to File Storage

Are web services too slow?

Data Access and Storage Developer Center: Comparing the Microsoft .NET Framework 1.1 Data Provider for Oracle and the Oracle Data Provider for .NET

DHTML and .NET: Host Secure, Lightweight Client-Side Controls in Microsoft Internet Explorer -- MSDN Magazine, January 2002

Boise Software Developers Group: Language Metrics

EJB 3, the new JavaBeans

Backwards Breaking Changes from version 1.1 to 2.0

Basic Authentication in Delphi 7 SOAP

TheServerSide.com - Simplifying EJB Development with EJB 3.0

I figure out a way about getting the distinct store count from the summary table, and here is the detail.
We have a summary table like it

period_key	item_key	store_key

20030102     1            1

20030102     1            2

20030102     1            5

20030102     1            7

20030102     1            9

..

20030302     1            2

20030302     1            5

20030302     1            6

20030302     1            8

We normally use the following Query to run against the summary table and get the
distinct store count

Select count(distinct store_key) from [summary table]

Where period_key between ? and ?

And item_key = ?

If the summary table has lots of rows, this query would be running long time.

We only need to know the position of each store in store lookup table when we are calculating the distinct store count, so we could come out the following structure

Bit Position	       1	2	3	4	5	6	7

Store key		1	2	5	6	7	8	9

 	 	 	 	 	 	 	

{1,2,5,7,9}		1	1	1	0	1	0	1

{2,5,6,8} 		0	1	1	1	0	1	0

The store lookup table doesn’t have too many records, so we could just use a
column which type is varchar2 to store the resulting bit string for store key.

period_key	item_key	store_key_raw

20030102 	   1		1110101

20030302	   1		0111010

Once we need to get the distinct count of store, we could just do BIT_OR operation
on this column, and get the distinct store count by counting the amount of 1 bit inside the final bit string for store key. there are an existing Oracle function UTL_RAW.BIT_OR that could do BIT_OR operation to two strings, and it is quite fast, there are some code snippets.

 PROCEDURE test_raw_or IS

     lvc_cursor  ref_cursor;

     lvn_counter BINARY_INTEGER;

     lvs_a       VARCHAR2(4000);

     raw_a       RAW(4000);

     raw_b       RAW(4000);

     raw_c       RAW(4000);

BEGIN

     -- get the bit string for store key 

     OPEN lvc_cursor FOR

          SELECT store_key_raw

            FROM store_bitmap;



      -- use loop to do the bit_or for all of rows

     lvn_counter := 0;

     lvs_a := '';

     LOOP

          EXIT WHEN lvc_cursor%NOTFOUND;

          lvn_counter := lvn_counter + 1;



          FETCH lvc_cursor

               INTO lvs_a;

          raw_a := utl_raw.cast_to_raw(lvs_a);

          IF lvn_counter > 1 THEN

               raw_c := utl_raw.bit_or(raw_a, raw_b);

               raw_b := raw_c;

          ELSE

               raw_b := raw_a;

          END IF;



     END LOOP;

     CLOSE lvc_cursor;



     -- get the final bit string for store key

     INSERT INTO calc_store_bitmap

     VALUES

          (utl_raw.cast_to_varchar2(raw_c));



     -- get the distinct store count by counting the amount of 1 bit inside the

     final bit string for store key 

      ....



End;

There are another problem raised that UTL_RAW.BIT_OR could only do the BIT_OR on
two strings, it couldn’t do the BIT_OR on a column in a table. It is not convenient for us to write SQL,

Fortunately oracle 9i has a great feature named as User defined aggregate functions, you could do any aggregate operation with it, just like the regular oracle aggregate functions such as sum or count. First all, we need to create a new oracle type that includes a set of oracle pre-defined member function. such as ODCIAggregateInitialize, ODCIAggregateiterate. Then we could write the code to override these functions. The following is code snippets.

-- define a temp variable to store the middle value

total raw(4000),

--override the function that is doing the Iteration

member function ODCIAggregateIterate(self IN OUT str_agg_type,

                                     value IN raw )

return number

is

begin

    self.total := utl_raw.bit_or(self.total, value);

    return ODCIConst.Success;

end;

--override the function that returns the final result

member function ODCIAggregateTerminate(self IN str_agg_type,

                                       returnValue OUT raw,

                                       flags IN number)

return number

is

begin

    returnValue := self.total;

    return ODCIConst.Success;

end;

And I created two functions to get the distinct store count, the first one is a User
defined aggregate function raw_bit_or_agg(input varchar2) that is used to do the BIT_OR on a column in the table, this function is just like other aggregate function. Another is count_bit_in_str that could get the bit count from a string, so the Query that getting count will be like this,

 SELECT count_bit_in_str(raw_bit_or_agg(p.store_bitmap))

FROM [summary table] p

WHERE p.period_key BETWEEN ? AND ?

And p. item_key = ?

ORDER BY p.period_key

I wrote a unit test app to compare the difference, the method using BIT_OR is
500 times faster than the one using count(distinct store_key).

I did some survey on MS .net rich client automated upgrading solution recently, here is the detail

1 MS Updater Application Block
It is a open source framework that supports .net 1.1 framework and VS.2003, it includes a simple start app and a configuration file in the client side, the configuration file stores the address of file server that might be FTP, web, or shared file folder. There is a ServerManifest.xml that is located in the root folder of file server; this file includes all of files that need to be upgraded and their latest version number.
When the start app is launched, it will check the info inside the ServerManifest.xml, and compare with current application files in the client side, if the version # is not matched, and there are new version available, the start app will pop up a window to ask if you‘d like to upgrade the current application files, and the start app will do all of file downloading and replacing automatically if you client YES.

MS Updater Application Block

2 DotNet No-Touch Deployment (NTD)
DotNet No-Touch Deployment is a zero deployment application solution (smart client).
it supports .net 1.1 framework and VS.2003 too, it includes two methods.

the first method is that hosting the winform application into a web server, so user can lanuch it with a URL in IE or commend line. the app will be downloaded from web and setting into local internet cache, it doesn't require download every time unless there are new version in server side. and it could use the web service to connect with database, so the client side doesn't need install the oracle client. it requires a little changes in start section of winform app to make it work.

another method is embeding the .net winform coltrol into a web page, and put them to web server. it is similar to some original methods such as activex, but MS made some improvement, such as the size of control is much smaller than before.

DotNet No-Touch Deployment (NTD)



3 ClickOnce
ClickOnce is part of .net 2.0 framework, and supports VS.2005; it will be available in 2005.
It provides a home page for every application, the user could access the application by a URL inside this home page, you could choice to install the app in client machine or run the app in client cache, and it also support automated upgrading if you install the application in the client machine.

ClickOnce

4 Avalon
Avalon will be with the windows longhorn that was scheduled to be released in 2006, and it will support the Windows XP too. its start app is a XAML file that could be located in the client PC or server side such as a web server, this XAML file is similar to web page, but it doesn’t require IE, Avalon also support automated upgrading.

There are also some third party solutions available such as updated component suite; they are similar to MS Updater Application Block.

Walkthrough – Generating RDL Using the .NET Framework

MSDN TV: .NET Smart Client Applications

FIX: ASP.NET Does Not Work with the Default ASPNET Account on a Domain Controller

Design a simple service-oriented J2EE application framework

EJB 3.0 Tutorial

oracle reference

Numeric Functions

Visual C# Developer Center: Tools

Borland Blogging Community

What is new in the Delphi Compiler - Danny Thorpe

Altering the SOAP Message Using SOAP Extensions

Securing XML Web Services Created Using ASP.NET

Aspect# - An AOP framework for the .NET

Raible's Wiki: AppFuse

JValue, a framework for Value Objects in Java

Association

Inheritance

Aggregation

.NET Framework Tools

a chinese novel

ADO.NET Oracle 9i

Oracle Tips and Tricks of the Week Part 5

How to: Bind an Array to an ODP.NET Database Command

C# 2.0: Create Elegant Code with Anonymous Methods, Iterators, and Partial Classes -- MSDN Magazine, May 2004

Servlet Performance Report

Applying Design Issues and Patterns in Web Services

CSDN???? Delphi.NET internal (2)

Initializing code in c#

The Data Warehousing, CWM and MOF Resource Page

Java Function Programming

The difference among different DotNet data provider for oracle
There are three major data provider from Oracle, Misrosoft and Borland
1) if we run a query to return same amount of rows, the ODP.net would take the shortest time, while BDP.net would take the longest time.

2) All of three providers are based on ADO.NET, this means they have same basic classes and methods,
If we are going to replace MSDP.NET with ODP.NET, what we need to do is changing the library reference and the units in uses section,
But they also have some slightly difference, for instance, the oracle data type for ref cursor in MSDP is OracleType.cursor, and
the oracle data type for ref cursor in ODP is OracleDBType.RefCursor

3) All of three providers support Ref Cursors returned by Oracle stored proc

4) Both of MS data provider and Oracle data provider support database connection pooling, but Borland Data Provider doesn't support it

5) MS data provider offers an OracleLob object that handles all Oracle LOB database objects in the same fashion, while the Oracle data provide offers
specific objects for both Oracle BLOB and CLOB database objects. This means ODP.NET provides better support for these Oracle datatypes.
For instance, the OracleClob object overrides the read method to populate a char array. This feature is especially useful when dealing
with Unicode and other multibyte characters.

6) The MS data provider come with DotNet framework, and the DotNet framework is part of in windows XP professional and windows 2003 server .
whereas Oracle data provider or Borland Data Provider need to be installed separately

WS Spec

Inversion of Control Containers and the Dependency Injection pattern

Joel on Software - How Microsoft Lost the API War

I don't think the Web page will be instead of Win GUI, although some web pages are fancy enough, but please just take a look the JavaScript code, it is extremely long, and quite badly organized.

whereas I think that Avalon and Indigo will be instead of Web page if M$ could do their work well, what my desired GUI is that it has no round trip, no overall refresh, and no deployment.

the thing I worry about is M$ current GUI project strategy, WinForm semms as if to be stillborn. infopath, a very cool stuff, but nobody use. Avalon need to wait at least two years. why M$ can't focus on one thing.

.NET Architecture Center: : Secrets of Great Architects

web security

ASP.NET 2.0 new feature

Java HashMap

AskTom "Dynamic SQL vs Static SQL"

Interface inconsistencies between ASMX Web services and System.Xml V1 and V2

Office Developer Center: Using the XML Features of the Excel 2003 Object Model

DelphiForFun Home

Pascal Script™ in remobjects.com

.NET Architecture Center: : Secrets of Great Architects

The long transaction and work management integration

VCL message

memory fundtion

The Fastcode Project

Delphi Memory Manager Test

OLAP link

Top Ten Tips for Web Services Interoperability

MSDN TV%3A WSE 2.0 Adapter for BizTalk Server 2004

My favourite tools and controls - a list of links

Java Programming with Oracle JDBC Chapter 19 Performance

Visual Studio Home: Product Pricing Primer

Search and Download Oracle Database, Application Server, and Collaboration Suite Documentation

JDocs.com

Invoking MSIL Functions Under Loader Lock

Introduction to GDI+

Some link about the cert test
iTeBooK
CertCity
sharecenter
TLF 0Day NFO Trans

Pluggable architecture

A+ Certification MCSE Training CCNA Network+ CISSP and Security+ Training Resources

ImageFast: A stand-alone library for quickly loading GDI+ images without validation.

MSDN .NET Framework Developer Center: Regional Director Code Samples

Java News Brief::OCI::April Issue

.NET Matters: How Microsoft Uses Reflection -- MSDN Magazine, July 2004

.NET Quiz

report service

TheServerSide.NET - Tech Talks

Visual JSTL

Jamie Cool - Demo of ClickOnce

english magaine

BitTorrent Protocol Specification

ASP.NET Home: ASP.NET Whidbey: Data Access in ASP.NET 2.0

Data Access and Storage Developer Center: ADO.NET 2.0 Feature Matrix

ASP.NET Home: ASP.NET Whidbey: Creating Custom Web Controls with ASP.NET 2.0

Web Services: Capturing and Analyzing Client Transaction Metrics for .NET-Based Web Services -- MSDN Magazine, July 2004

What is ECO?

ASP.NET Session State FAQ

nhibernate

english BT

[Chapter 5] 5.3 Bulk Querying with the BULK COLLECT Clause

D7 Ent/D8 Arch component migration list - by Serge Dosyukov

N/Direct - The .NET Interoperability Resource Center

Calling constructors at runtime in .NET and Win32

Multi-file Assemblies: What and How

Programmingtutorials.com - delphi Tutorials

Avalon OP

ASP 2.0 callback

Visual C# Developer Center: Refactoring C# Code Using Visual Studio 2005

Let’s see the history of java web development, there are four major steps,
1, Java Servlet - use java code to generate the all of html content, developers need to take a lot of time to do the coding for both of html content and server side business logic, and very hard to maintain the html content and java code.

2. Jsp – embed the java code into html content by using java bean that is used to generated the dynamic html content, it solve the problem of maintenance the static html content, and it bring some other problem, the java code is separated to everywhere, the presentation view and business logic are mixed together, it is easier to cause the system mass up when the system is getting bigger.

3.Struts framework – Java code do not generate the html content directly, and html content do not include the java code directly, it use html tag-lib to combine the code and content together, the html tag-lib permits java developers to boil down complex server-side behaviors into simple and easy-to-use elements that content developers can easily incorporate into their html pages
，html tags are capable to implement some simple programming logic such as branch (if else ) and loop(for), and the html tag-lib can be re-used and extended.
The struts separates the presentation view and business logic very well, so it meet the need of most of web system and become more and more popular, so far the problem for html tag-lib is the management and customizing, the content developers need to take some time adjust the properties of html tag to achieve the visual effect they want, and java developers are not easy to customize new html tag..

4. JSF (similar to asp.net) - it is the newest method to do the web development. It uses visual component technology to help java developers to customize the html tag, and the content developers could quickly and visually reference the html tag. It greatly increases the productivity of web development.

a chinese article about the web tech(fastm

Free Pascal supplied units : Reference guide.

23 The TYPINFO unit

Regular Expression

A IT FTP site

MCSD.net

Mastering Delphi 6 Source Code- XML

.NET Designers - part 1

Stress Testing Web Application using Microsoft's Web Application Stress Tool

Paging in J2EE: Manage Large Result Sets Efficiently

Building Services Today

Performance Quiz #3

What's new in System.Reflection (and friends)

Another attempt at Functions as objects.

Hijack Session Variables in ASP.NET Robbe Morris

A chinese article about the hibernate

Processing XML with Java

a chinese article about Java and XML

Java Stored Procedures

Using Oracle SOAP

use jdeveloper to do the web service

Database Web Services Samples and How-To

Java Stored Procedures

Creating the Java Axis Client

Implementing a Java Stored procedure

Developing Microsoft ASP.NET Server Controls and Components

Windows Service Administration with .NET Part 3 - Controlling Your Service

Visual Studio 2005: Bridge the Gap Between Development and Operations with Whitehorse -- MSDN Magazine, July 2004

Office Developer Center: Creating Charts in Microsoft Office Excel 2003 Using Visual Basic for Applications Code

Netcoole Migration Services

I wrote a small copy file routine that support overlaped reading and writing, it suppose to has better performance.

procedure RSICopyFile(ASourceFileName, ADestFileName: string; ABuffSize: integer; AOverLaped: boolean);
const
MaxBufSize = 1024 * 1024 * 50; // 50mb
var
FReadhandle: THandle;
FWritehandle: THandle;
FBuffer: Pointer;
BufSize, FBytesInBuff, FFilePos, FBytesRead, FBytesWrite: Integer;
FFileSize: Integer;
FRead_os, FWrite_os: TOverlapped;
ErrorFlag: Dword;

begin
//open the source file
if not AOverLaped then
FReadhandle := CreateFile(PChar(ASourceFileName), GENERIC_READ, FILE_SHARE_READ, nil, OPEN_EXISTING
, FILE_ATTRIBUTE_NORMAL or FILE_FLAG_SEQUENTIAL_SCAN, 0)
else
begin
FReadhandle := CreateFile(PChar(ASourceFileName), GENERIC_READ, FILE_SHARE_READ, nil, OPEN_EXISTING
, FILE_ATTRIBUTE_NORMAL or FILE_FLAG_OVERLAPPED, 0);

FillChar(FRead_os, SizeOf(FRead_os), 0);
FRead_os.hEvent := CreateEvent(nil, True, False, nil);
FRead_os.Offset := 0;
FRead_os.OffsetHigh := 0;
end;

if FReadhandle = 0 then
begin
raise exception.create('Cannot open the readding file');
end;

// get the size of source file
FFileSize := GetFileSize(FReadhandle, 0);

//open the dest file, create anew one if not exist
if not AOverLaped then
FWritehandle := CreateFile(PChar(ADestFileName), GENERIC_READ or GENERIC_WRITE,
0, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
else
begin
FWritehandle := CreateFile(PChar(ADestFileName), GENERIC_READ or GENERIC_WRITE,
0, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL or FILE_FLAG_OVERLAPPED, 0);

FillChar(FWrite_os, SizeOf(FWrite_os), 0);
FWrite_os.hEvent := CreateEvent(nil, True, False, nil);
FWrite_os.Offset := 0;
FWrite_os.OffsetHigh := 0;
end;

if FWritehandle = 0 then
begin
raise exception.create('Cannot open the writting file ');
end;

//Set the buffer size
if ABuffSize > MaxBufSize then
BufSize := MaxBufSize
else
BufSize := Integer(ABuffSize);

FBuffer := VirtualAlloc(0, BufSize, Mem_ReServe or Mem_Commit, PAGE_READWRITE);
try
if FFileSize > 0 then
begin
if FFileSize > MaxInt then
FFilePos := MaxInt
else
FFilePos := FFileSize;
while FFilePos > 0 do
begin
if FFilePos > BufSize then FBytesInBuff := BufSize else FBytesInBuff := FFilePos;
//clean up before read
FillChar(FRead_os, SizeOf(FRead_os), 0);
//Read file to buff
if not AOverLaped then
begin
if not ReadFile(FReadhandle, FBuffer^, FBytesInBuff, LongWord(FBytesRead), nil) then
begin
raise exception.create('file cannot be read');
end;
end
else
begin
if not ReadFile(FReadhandle, FBuffer^, FBytesInBuff, LongWord(FBytesRead), @FRead_os) then
begin
ErrorFlag := GetLastError;

if ErrorFlag <> 0 then
begin
if ErrorFlag = ERROR_IO_PENDING then
begin
if WaitForSingleObject(FRead_os.hEvent, INFINITE) = WAIT_OBJECT_0 then
if not GetOverlappedResult(FReadhandle, FRead_os,
LongWord(FBytesRead), False) then
begin
ErrorFlag := GetLastError;
if ErrorFlag = ERROR_HANDLE_EOF then
begin
exit; // The end of the stream was hit.
end;
end;

end
else if ErrorFlag = ERROR_HANDLE_EOF then
begin
exit; // The end of the stream was hit.
end
else
begin
raise exception.create('file cannot be read');
end;
end;
end;
inc(FRead_os.Offset, FBytesRead);
end;


//Write buff to file
if not AOverLaped then
begin
if FBytesRead = 0 then
begin
exit; // The end of the stream was hit.
end;
if not WriteFile(FWritehandle, FBuffer^, FBytesInBuff, LongWord(FBytesWrite), nil) then
begin
raise exception.create('file cannot be written');
end;
end
else
begin

if not WriteFile(FWritehandle, FBuffer^, FBytesInBuff, LongWord(FBytesWrite), @FWrite_os) then
begin
ErrorFlag := GetLastError;
if ErrorFlag <> 0 then
begin
if ErrorFlag = ERROR_IO_PENDING then
begin
if WaitForSingleObject(FWrite_os.hEvent, INFINITE) = WAIT_OBJECT_0 then
if not GetOverlappedResult(FWritehandle, FWrite_os,
LongWord(FBytesWrite), False) then
begin
ErrorFlag := GetLastError;
if ErrorFlag = ERROR_HANDLE_EOF then
begin
exit; // The end of the stream was hit.
end;
end;
end
else if ErrorFlag = ERROR_HANDLE_EOF then
begin
exit; // The end of the stream was hit.
end
else
begin
raise exception.create('file cannot be writeen');
end;
end;
end;
Inc(FWrite_os.Offset, FBytesWrite);
end;

//Change the position
Dec(FFilePos, FBytesRead);
end;
end;
finally
VirtualFree(FBuffer, BufSize, Mem_DeCommit or Mem_Release);
CloseHandle(FReadhandle);
CloseHandle(FWritehandle);
end;

end;

lib kernel32.dll reference for Windows Api programming in C# , VB.NET, and VB6. Examples of P/Invoke and DllImport with Source code

overlapped

a robot app that is written by java script

TheServerSide.com - The State of Workflow

The Code Project - Create Desktop Widget Using Embedded IE Browser - .NET

C# 2.0 Specification | hosting by ferca.com

15 Seconds : Introducing .NET Generics

Writing n-Tier Applications

Can Web Services Inherit HTTP Compression?

benjaminm's blog - WSE 2.0 Web service security in a real-world scenario

.NET tip: Getting the Users Home, Temp or My Documents Directory by Charlie Calvert

Programming Contest: Open Tools for C#Builder has been extended and expanded to Delphi 8

BabelCode Web Service

Aaron Johnson: Hibernate: Deleting Objects

The Code Project - Transactions in ASP.NET WebServices - ASP.NET

good project management

Sysinternals Freeware

CodeCentral: Code converter for C# Builder and Delphi for .NET

The benefits of Windows 2003 clustering with Exchange 2003

Create a Self-Updating WinForms App with the Application Updater Block

.Net singleton pattern multi-threading issue...

Exploring the Singleton Design Pattern

good chinese article- use AOP in Dot Net

Use web service to implement the Auto Update of WinForm Client (C#)

use Mutex to ensure the single instance of application

How to retrieve text under the cursor (mouse pointer)

Crossing the process boundry with .NET

Checking if an application is already running

Microsoft Windows Media - Windows Media Player 10 Technical Beta

282402 - How to Configure Internet Explorer to Have More Than Two Download Sessions

CTS400 Using Web Services Enhancements v2.0 for Messaging Over Multiple Machines and Networks

TechEd: CTS405 Connected Systems: Choosing a Hosting Model - Dealing with Threads, AppDomains, and Processes

Server-Side Unit Testing in ASP.NET
How to create an HttpContext outside of IIS

CSDN_C#:Web Service exception handling

Handling and Throwing Exceptions in XML Web Services

3 Leaf: Web Services Resources

Encrypting one parameter on a WebMethod with WSE

Building Robust and Reliable Software

Web Services Developer Center: Web Services Enhancements (WSE): Programming with Web Services Enhancements 2.0 (Web Services Enhancements (WSE) Technical Articles)

Undocumented Delphi 8 property access specifiers Part 1

Integrating Help in Delphi 8

The Oracle at Delphi: Delphi Win32: Why packages are better than libraries.

Thursday, May 27, 2004

DEV410: Inside the ASP.NET Runtime

Some code shows how to manage transaction in multiple database system


we create a table test_log in remote database, and a procedure test_log_pkg.insert_log to insert log into this table

create or replace package body test_log_pkg is
procedure insert_log(pvs_log in varchar2) is
begin
insert into test_log values (pvs_log);
end;
end test_log_pkg;


we create a procedure test_dblink_pkg.insert_remote_log in local database which invoke the insert_log in remote database by database link. we added PRAGMA AUTONOMOUS_TRANSACTION in declaration section, and commit the insert at the end.

create or replace package body test_dblink_pkg is

procedure insert_remote_log(pvs_log IN varchar2) is
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
insert_log@remote_db(pvs_log);
commit;
END;

end test_link_pkg;

then we create a table test_log in local database, and we create a test procedure which insert log into test_log in local database, and
invoke insert_remote_log to insert log into test_log in remote database, at the end, we rollback all of operations.

procedure test(pvs_log IN varchar2) is
BEGIN
insert into test_log values(pvs_log);
insert_remote_log(pvs_log);
rollback;
END;

after we run test, test_log in remote database has a new record, but test_log in local database has nothing.
It shows that the transaction for local database is rolled back, but the transaction for remote database is commited

DBAsupport.com : Oracle 9i Central : Autonomous and Distributed Transactions in Oracle 8i/9i

DEV310: Top 10 Tricks for a Killer ASP.NET Web Application

MSDN TV: Developing Applications Using SQL Server 2000 Reporting Services

Report Definition XML Diagram

.NET Architecture Center: : Service-Oriented Architecture: Considerations for Agile Systems (Microsoft Architect Journal)

Visual C# Developer Center: C# Language

ASP.NET: Application level data caching with callbacks

Visual C# Home: Wonders of Windows Forms: Extending Windows Forms with a Custom Validation Component Library, Part 2 (Wonders of Windows Forms)

Web service standard Basic Profile - Version 1.0 (Final)

Deconstructing ASMX

.NET: Safe Thread Synchronization -- MSDN Magazine, January 2003

asp.net csdn FAQ

Oracle and .NET, a tough one...

A macro to automatically attach to aspnet_wp.exe

XML extensibility, xsi:type, XmlSerializer and configuration (or how to leverage XmlSerializer + OO extensibility)

AskTom "Return values from a PL/SQL table into a ref cursor"

about Oracle type

Manage C# Objects

Data Access and Storage Home: Accessing Oracle 9i Stored Procedures Using ADO.NET (ADO.NET Technical Articles)

debug skill in c#

Logs and Traces in .Net

UI Consistency: Title Bar Help Buttons

10. Chief Programmer Teams

OutOfMemoryException and Pinning

.NET Architecture Center Home: Integration Patterns (PAG Documentation)

Writing High-Performance Managed Applications : A Primer

Radek's Newspaper Styles for FeedDemon

. WinForm 2.0 Features

MSDN TV: Generic APIs in the Visual Studio 2005 .NET Framework

The Scope of Hibernate Three

Improving .NET Application Performance and Scalability

Deconstructing Remoting

chinese article : weak reference in c#

ANN: Improve your "Contract First" Web services development experience: WsContractFirst v0.2 - forget about wsdl.exe

.NET: Safe Thread Synchronization -- MSDN Magazine, January 2003

Delphi and C# comparison

write self modify code by delphi

The Code Project - Full-featured Automatic Argument Parser - C# Programming

Instantiating New Objects From Generics

generic in c# and class reference in delphi are similar

Build this XAML Rendering Engine for Your .NET Apps Today

A Vote: 10 Things Developers Currently Do w/ SQL That They Shouldn't

WinForms: How to Use Mono to Get Microsoft .NET GUI Based Applications Running on Linux by Charlie Calvert

TreeView ASP web control

Object-relation mapping without the container

Good article

Making web forms easy with InfoPath and "InfoView"

Nice idea, the tools to converting the InfoPath XML form to be ASP.NET web form.

ASP.NET and Struts: Web Application Architectures

Good article, seems like the author prefer the ASP.net, but I have to say the struts is more suitable for large web site since the structure of java struts could help the developer be able to have a better feel to the entire sytem.

ObjectSpaces and Whidbey

ObjectSpace will be come later than Whidbey, the reason seems like that ObjectSpace use some new feature in WinFS, such as a new Query syntax(hybrid-SQL-and-XPath),
is that means ObjectSpace only for Sql Server because WinFS use Sql server

FTPOnline - VSLive! SF 2004 - Model Apps More Effectively

It is hard to keep the code and Model in synchronization. MS case tools is going to make it easy.

Unit Testing a Windows Forms or Console Application

Separating the business logic code with Winform units is the key

InfoPath and XAML! Friends or foes?

convert the connect by clause from Oracle to MS SQL

DevCentral - - Thread Synchronization in Java Code

Use java open source to develop web application

Excel automation (interop) with the .NET Framework

A chinese article about ASP.Net tree view

Office Developer Center: Lab 1: Editing Forms and Working with Form Data in InfoPath 2003

10 Lab to introduce the infopath.

XML Developer Center Home: Efficient Techniques for Modifying Large XML Files (Microsoft Access 2002 Technical Articles)

Some chinese ASP.NET article-Http Handles

Java- Use Reflection to enhance Visitor pattern

Longhorn Developer Center Home: Longhorn Concept Videos

check it out later

Outputting to native Excel

try it later

Java Studio Creator: An IDE to Create Web Applications

The JSF web developement IDE from sun, is it as easy as Asp.net?

Visual Studio Magazine - Database Design - Access Oracle-Specific Features

Continuous Integration with CruiseControl.net and Draco.Net

the Draco.Net is for small project, and the CruiseControl.net is for big.

Office Developer Center: Using the Excel 2003 Object Model to Add XML Data Integration

Web Services Developer Center Home: Java/.NET Interoperability with the Microsoft.com Web Service (Global XML Web Service Interoperability Resources)

Office Developer Center: Lab 7: Performing Calculations in Excel Solutions

Office Developer Center: Lab 3: Adding Functionality to Excel Workbook Solutions in Visual Studio .NET 2003

MF Bliki: SpecificationByExample

Essential Delphi 8 for .NET

There are a preview chapter available for downloading.
Something I got from this charper,
1. Initialization in D.net become the Static Class Method and called from Class Constructors
2. sets in D.net become the enumeration class (marked as sealed) that inherits from System.Enum.
3. the difference between record with methods and class in D.net is the way the use memory, the record is in stack and the class is in heap, so the record is a little bit more efficient.
4. StringBuilder is for increasing the performance of string concatenation. it is much faster than common string concatenation.
5. the Direct type cast became more restrictive in D.net. Integer (anObject) is no longer allowed
6. protected symbols defined in another unit are accessible only within the same assembly/package, but not across package boundary
7. ECO framework use Class Helper too, the Class Helper in D.net looks like the partial class in c#
8. published property in D.net become the BrowsableAttribute in CLR
9. Any class needing resource clean-up should implement the Dispose method of the IDisposable interface,
and add the 'using' clause in c#. the VM will free the object and resource in the the score of 'using' clause, this way eliminate the delay of GC.
in D.net, the Destroy() method becomes an implementation to Dispose. nice
10. However the Delphi 8 compiler cannot impose the presence of a specific metaclass for classes not
compiled by Delphi but imported from assemblies written in other languages.

Oracle Technical Interview Questions Answered - Part1

A Oracle DBA or developer must read this article

XP flow Chart

WinForms is dead misconceptions are misplaced

how soon will you have 100% Longhorn coverage? Here's my guess: 2012 to 2014. so learning the winform will keep your job up to 10 years.

MSDN TV: Windows Forms and Non-Rectangular Applications

The .NET Show: Longhorn and WinFS

WinFS intergrated the Hiberarchy Files System, Relational Database and Rank based web search engine togeather, it sounds excited, but I am not sure if M$ could make the entire system easy to use, even for common people who has no IT knowledge.

How to design good APIs and Why they matter

Good article, the author wrote the effective java before,

CS CODEDOM Parser
I might use CodeDom sometime in the furture, just keep this link as reference

The Code Project - XButton control for .NET - C# Controls

there are some GDI+ function in the source code, such as making the gradient effect

java thread model

A chinese article about the synchronized, DCL, lacyload, it introduces some important idea to all of developers who even are not java guy

Continuous Integration

we are using the visual build professional right now, but the tools here are free.

To GAC or not to GAC?

it is not my first time seen such article, so getting away from GAC

FxCop Team Page
it is a tools that could make your dotnet code solider

Visual C# Home: C# 2.0: Create Elegant Code with Anonymous Methods, Iterators, and Partial Classes

Visual Studo 2005 and ASP.NET 2.0 made it simple ... way too simple

VS.Net is very easy to use comparing to other development tools such as java, but it also tied the developers with the MS's framework, is it good or bad?

The problem with Multi-Cast Delegates

delegation bugs?

Test-Driven C#: Improve the Design and Flexibility of Your Project with Extreme Programming Techniques -- MSDN Magazine, April 2004


good article

The Code Project - SourceGrid - Open Source C# Grid Control - C# Controls

compared to data grid, it is not dataset oriented thing in which I don't like,

Enumerators and boxing..

the interface IEnumerator is used here

Research Services

need to check it out sometimes.

CodeGuru: C++ Tip: Receiving & Converting Numeric and String Data via Sockets

GUIdebook > Interfaces

The desktop snapshot of every operating system

The New Delphi 8 Help System

chinese FTP download site

Design Guidelines Update: Generics

introduce the generics deeply

Paging with Repeater control in ASP.NET

Repeater is a replacement of array or list in ASP.net, could it be used in somewhere else?

COCOON's Tech
some DotNet book download

Exception Handling in C#

using clause is used to do the exception handling,
and the class inside the using clause have to implement the IDisposable interface

A Brief Synopsis of C# Class and Method Modifiers

microsoft effective functional specification-chinese version

5 The Oracle Data Provider

The VS7.X Debugger doesn't work, What can I do?

god article for troubleshooting the ASP.NET error

ONJava.com: Effective Unit Testing with DbUnit [Jan. 21, 2004]

the good thing for DBUnit is that it could put the testing data into a XML file,
and use its API to load into database, so you could change the testing data
without changing code. there are another nice stuff called MockObject.
it has DotNet portion.

Changes to Functionality in Service Pack 2 for Microsoft Windows XP

How to Shoot Yourself in the Foot with Code Coverage? (Part I)

Writing the unit test case could eliminate the bugs? who can make sure the test case is correct, I only wrote test case when I think it is necessary,
striving for 100% code coverage is kind of time wasting.
and the unit testing is only for developer, it could not reduce the work load of QA.

Avoid the GAC

CLR Hosting
some link about CLR Hosting

Encrypting SOAP Messages Using Web Services Enhancements

chinese version

Feedroll...freshly rolled news feeds for your site

a free blog tools to show your Blog item list on the web page

Are memory mapped files (MMFs) always faster than normal file I/O techniques?

Danny wrote it, talking some compiler's I/O performance issue, very deep, worthy to read

TestRunner for NUnit
A nice thing for Nunit is that it could test a set of assembly togeather

Squaretwo.Blog - Avalon Performance Tip: Inheritable Properties, Resources, and Replacing Styles

it introduce the use of a configurable property trigger, it could replace the event handler and the changing the properties in code, the reason he metions is because setting inheritable properties is expensive. I didn't get the point, anyway, this method is flexible.

In love with InfoPath

the infopath is a new member of MS office, it make the web service more useful, and will be a big impact to web based application.

The .NET Show: Longhorn Indigo

WSE and remoting will be outdated, the change is just too quick and very hard to catch up

C# Team Bloggers

PermaLink
the demo about the Avalon and XAML, the future UI standard of windows.

Tim Bray joins Sun, explains .NET's "three flaws"
A long thread about the DotNet Vs Java, I would say that it is a kind of time wasting, the success is not due to the technology but the money, just take a look the point of Nasdaq.

I really like some comment here. such as

Microsoft will lie, cheat, steal, or maybe just work very, very har. whatever it takes. That's the most intimidating realization of all for competitors.

QDocuments.net
it is a free chinese version Delphi IDE expert for generating the document based on the comment in the source code, just like JavaDoc in java, unfortunately the english version is not available.

Some chinese IT E-book

COM thread model
chinese article, simple and clean

ObjectDataSource Sample:

this articel shows how to bind the Business Object with Webform control by web config profile, nice way to separeate the presentation layer with domain layer

The Code Project - Multi Dimensional Arrays using Template Meta Programming - C++ / MFC
This code is written by c++, not c#, since the c# 2.0 supports generic programing, so understanding the template in C+ is good for understanding the generic in c#

The Code Project - Multi-monitor programming in C# - C# Programming

which language feature in .net could be used in a OR mapping framework
1: Attribute, it is very good for creating the different database access adapter in the data access object.
2: partial class, it is good for separating the business logic code from Value Object code.
3: CodeDom, it could be used to generate the Value Object code according to the XML mapping file during the runtime. just like CGLib in hibernate.

divil.co.uk - Windows Forms Controls
A free library for WinForm

Sysinternals Freeware - Utilities for Windows NT and Windows 2000 - Process Explorer
A great tools for system administrator and developer, you could see the DLL and resource that are used by the system process, it could help you looking for the maliced threads who are concealing in some sytem process, or debuging the application.

Some interview question from M$ China

Installers for GIMP for Windows
A open source tools that is similar to photoshop, worthy to try it.

.NET Resource Generator: Home

AskTom "Running procedures dynamically."

Good article, I really need this kind of feature since we treat stored procedure as a major development method considering its performance, but the parameter of stored proc is always a problem for us to make the generic data access object class.
the method this acticle introduced bring some advantage but losing some benefit such as compiling time type checking. so the tradeoff is everywhere

Java "Beats .NET for Processing XML," Report Claims (SYS-CON)
I can't beceive it, the MSXML is simple enough for me.

The Code Project - Super Combo Box - combo-box with columns, colors and more - Combo and List Boxes

Awesome ASP.NET V2 tip: specifying the assembly name in web.config for custom HttpModules/HttpHandlers in Whidbey's /Code directory

Coding Best Practices Using DateTime in the .NET Framework

Export data in a web application to Excel including formulas for columns