Montaque : Tech Notes

Sometimes, Hello world does not work;)

Montaque — Thu, 30 Dec 2004 15:40:00 GMT

I add a web method to existing web service, which return array of arraylist as the result.

then everything workes worse, the client can not invoke either of the web method

here is a simple code

public service1: WebService
{

public service1()
{
}
        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World, I am running in montaque notebook .NET";
        }

        [WebMethod]
        public ArrayList [] TestArrayList()
        {
            ArrayList [] ar=new ArrayList[1];
            ar[0].Add(1);
            ar[0].Add(2);
            return ar;
        }

}

when I test the code in the .net latest build ,40903, get the same result

Remember to invoke FlushFinalBlock()

Montaque — Fri, 09 Apr 2004 11:49:00 GMT

When encrypting a stream with System.Security.DesCryptoServiceProvider, code sniipt like the following.

Byte []EncryedText=Convert.FromBase64String(this.textBox3.Text) ;

System.IO.MemoryStream EncryptedStream=new System.IO.MemoryStream(EncryedText);

System.IO.MemoryStream OutMS=new System.IO.MemoryStream();

EncryptedStream.Seek(0,System.IO.SeekOrigin.Begin);

System.Security.Cryptography.DESCryptoServiceProvider x_des=new DESCryptoServiceProvider();

//??

   x_des.IV=m_IV;
   x_des.Key=m_Key;


   //???
   System.Security.Cryptography.CryptoStream encryptStream =new CryptoStream(OutMS,x_des.CreateDecryptor(),System.Security.Cryptography.CryptoStreamMode.Write);

encryptStream.Write(EncryedText,0,EncryedText.Length);
encryptStream.FlushFinalBlock();

   Byte[] outText=new byte[(Int32)OutMS.Length];
   OutMS.Seek(0,System.IO.SeekOrigin.Begin);
   //???????
   OutMS.Read(outText,0,(Int32)OutMS.Length);
   MessageBox.Show(System.Text.Encoding.Unicode.GetString(outText));

if the FlushFinalBlock is missed, you probably will not get the full encrypted text

Get public key from certificate, and Convert the key to the RSAParameter

Montaque — Thu, 08 Apr 2004 17:28:00 GMT

byte[] pk = cer.GetPublicKey();
   byte[] m = new byte[pk.Length - 3];
   Buffer.BlockCopy(pk, 0, m, 0, m.Length);
   byte[] e = new byte[3];
   Buffer.BlockCopy(pk, m.Length, e, 0, 3);
   String key = "<RSAKeyValue><Modulus>" + Convert.ToBase64String(m)+"</Modulus><Exponent>"+Convert.ToBase64String(e)+"</Exponent></RSAKeyValue>";
   Console.WriteLine(key);
   RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
   rsa.FromXmlString(key);
   Console.WriteLine(rsa.ToXmlString(false));

Microsoft SQLXML

Montaque — Wed, 07 Apr 2004 11:14:00 GMT

SQLXML 3.0 extends the built-in XML capabilities of SQL Server 2000 with technology to create XML Web services from SQL Server stored procedures or server-side XML templates. SQLXML 3.0 also includes extensions to the .NET Framework that provide SQLXML programmability to the languages supported by Microsoft® Visual Studio® .NET, including C# and Microsoft Visual Basic® .NET.

System Requirements

Supported Operating Systems: Windows 2000, Windows NT, Windows XP

The Web Services toolkit download doesn't include the Webcasts; please download them separately.

SQLXML 3.0 is optimized for use with Visual Studio .NET.

This release is installed using the Microsoft Windows® Installer 2.0. You might need to upgrade your installer to Windows Installer 2.0 prior to installing SQLXML 3.0.

Additionally, users might need to install the Microsoft SOAP Toolkit 2.0

Public Keys are not the same

Montaque — Sat, 03 Apr 2004 10:58:00 GMT

Aim: I wanna guarantee that only signed assembly have the access to my class library. SO I make use of the .net StrongNameIdentityPermissionAttribute to protect my assembly. When testing ,I encounter the different public keys of a same public/private key pair.

1. Extract the public key from the keyfile

Sn -tp montaque.snk

the public key echos:

Public key is
0702000000240000525341320004000001000100eb3a0ffb39f8d13e553d77c40399287cb7f29e
d6199da3daa9a31db7c437e0c550bae8e4bad69b7aad37ff9acc541166256d384176fe22ae6b1a
0f5204c8c8a5ba7c8f796506fb9f4621db157830e3faef0652a89ea30c3fe53b45033c7466a3ed
a68d8d40b4909d03e91c6f72d43f1740c10d701e74c500b8c9f491c11ae2b90fd7494f824a7ebb
f40a2aefc8886b8f7396ef3d0e5bf2d78c66db8b69a36fdc6ed378171d5837c43c871d0ce7c47b
61b53c36234f600072e8dfa17c13814eec657eac534c8fcd5291721f702e9b4e7d1b6c995af685
6018e624a4435eb3d4681f83c636e374d8cf7ec38829f0b68071ed7fdf2dc243b87aa62e1d8fcd
d65fc9773c297f59d46d270e7ffadcb457abf1ed7a73734d17e41564a223703085318bb81b21ba
6e1724dbb32b4e79f10fc407ef835429014fe1e34b7c8e07316b5064757c47a1daba35cd3f9d53
ee99f6ee7c0a8a5e6c7ac7e56173b9a8e02a02b301a5415dfe2089e827ae372e4a5b65058a892d
b654669485ea9e6238f5b4a69195d58cb345586c781e0f50a23fe67c6fdd7c766f867fed718bd4
98e8cd95dbcad5e48f0ebef977c779c71329aa6ab5c1c6596a7b8fb0df0c24ff05d967e2fa97e8
c9e0844074b7b7bc6f45fa86d4b55cd09c3bcab03f28670e5d9fa9ad1383eeb1bbe201e290b38d
18195d867ee066f10dd9277eaf60d45c737cbb301a955c88bf60b203e8b0ac13a887c0003d5d45
131c6a88a8c59a094ea69fa0440b4f78fe8bb5fa1b8957ae6ae9c9671e02b08cec48b42023d2d1
7c5ef152596caa2a890027

Public key token is 7a2a95f64f29bc4f

the key length is 1192

2. extract the public key of the signed assembly.

Public key is
0024000004800000940000000602000000240000525341310004000001000100eb3a0ffb39f8d1
3e553d77c40399287cb7f29ed6199da3daa9a31db7c437e0c550bae8e4bad69b7aad37ff9acc54
1166256d384176fe22ae6b1a0f5204c8c8a5ba7c8f796506fb9f4621db157830e3faef0652a89e
a30c3fe53b45033c7466a3eda68d8d40b4909d03e91c6f72d43f1740c10d701e74c500b8c9f491
c11ae2b9

Public key token is 9bcbe75a245746b6

I am suprised that why two keys are not equal, does they have some relationship like mapping or hashing?

sn -Tp mysignedassembly.dll

Convert C code to C#?

Montaque — Thu, 01 Apr 2004 14:08:00 GMT

Tool to go from C to Java:
http://www.portinggurus.org/Navigator.asp?link=http://in.tech.yahoo.com/020513/94/1nxuw.html

Tool to go from Java to C#:
http://www.microsoft.com/downloads/details.aspx?FamilyId=46BEA47E-D47F-4349-9B4F-904B0A973174&displaylang=en

Authorization and Profile Application Block

Montaque — Thu, 01 Apr 2004 13:51:00 GMT

The Authorization and Profile Application Block is a reusable code component that builds on the capabilities of the Microsoft .NET Framework to help you perform authorization and access profile information.

The Authorization and Profile Application Block provides you with an infrastructure for role-based authorization and access to profile information. The block allows you to:
? Authorize a user of an application or system.
? Use multiple authorization storage providers.
? Plug in business rules for action validation.
? Map multiple identities to a single user.
? Access profile information that can be stored in multiple profile stores.

Download: http://www.microsoft.com/downloads/details.aspx?familyid=ba983ad5-e74f-4be9-b146-9d2d2c6f8e81&displaylang=en

using the Indexing Service with .Net

Montaque — Thu, 01 Apr 2004 13:32:00 GMT

What is the Indexing Service?

Microsoft Indexing Service is a service that provides a means of quickly searching for files on the machine. The most familiar usage of the service is on web servers, where it provides the functionality behind site searches. It is built into Windows 2000 and 2003. It provides a straightforward way to index and search your web site.

Setting up the Indexing Service is explained at windowswebsolutions.com and will not be covered here.

Connecting to the Indexing Service

The Indexing Service exposes itself to the developer as as ADO.Net provider MSIDXS with the data source equal to the indexing catalog name. For example, the connection string used in searching this site is

Provider="MSIDXS";Data Source="idunno.org";

As with any other ADO.Net provider you use the connection string property of the System.Data.OleDb.OleDbConnection object.

using System.Data.OleDb;
protected OleDbConnection odbSearch;
odbSearch.ConnectionString =
"Provider= \"MSIDXS\";Data Source=\"idunno.org\";";
odbSearch.Open();
// Query and process results
odbSearch.Close();

You can also use the connection string in Visual Studio by dragging and dropping an OleDbConnection onto your asp.net page and setting the ConnectionString property in the Properties tab.

refer: http://idunno.org/dotNet/indexserver.aspx

Passing a session id to the server

Montaque — Wed, 24 Mar 2004 06:39:00 GMT

With a remoting service running in IIS I can access the session state, user,
application, etc using the RemotingService class.

What is the best way to pass a session from a console client to the server?
I assume this must be done with the HTTP header, but what is the best way to
do this?

the same question in http://dotnet247.com/247reference/msgs/1/5553.aspx

A wonderful Web.config Editor

Montaque — Wed, 17 Mar 2004 04:15:00 GMT

https://www.hunterstone.com/hsstore/products.aspx

How to skip Windows XP Login Splash Windows.

Montaque — Wed, 18 Feb 2004 09:39:00 GMT

Click Start, Run and type "control userpasswords2", and click Ok.
Uncheck "Users must enter a user name and password to use this computer"
option, and click Ok

C#<-->VB.NET Converter

Montaque — Sat, 14 Feb 2004 10:30:00 GMT

From C# to VB.NET http://authors.aspalliance.com/aldotnet/examples/translate.aspx

VB.NET to C# http://www.kamalpatel.net/ConvertCSharp2VB.aspx

Montaque and Amy got married at 2004/02/08.:)

Montaque — Tue, 10 Feb 2004 13:58:00 GMT

the photos are not ready now

Invalid part in cookie

Montaque — Wed, 04 Feb 2004 11:03:00 GMT

    Public Sub SetCsdnCookie(ByVal c1 As System.Net.CookieContainer)
        Dim s As String = " buildtime=2004%2D2%2D3+13%3A44%fsadfasd; buildnum=1; test=0; ASPSESSIONIDQASRTDQB=EKPHCECANFKHBJLMNJEDOJDP; ASPSESSIONIDQAQSSCQA=IALDDLCAJNGDPHDLFHOCGPLD; ASPSESSIONIDSCQRSDQA=JBCKJPDADKFLJDLAPFHLBIND; daynum=7; ABCDEF=RyYqs5wAA1v7wvlXC%25252fgOhElDWk%25252fVqNFDM3t306oQtpV5vj76WrVjh7ZInURppl6i; QWERTOP=1682; userid=78486"
        'Dim s As String = "UserName=Montaque ; IP=12.121.1.1"
        s = s.Trim
        Dim reg1 As New System.Text.RegularExpressions.Regex("(?<1>[^=]+)=(?<2>[^=]+);")
        Dim mc As System.Text.RegularExpressions.MatchCollection = reg1.Matches(s)

        Dim cc As New System.Net.CookieCollection
        Dim cookie1 As System.Net.Cookie
        For Each m As System.Text.RegularExpressions.Match In mc
            cookie1 = New System.Net.Cookie(m.Groups(1).Value, m.Groups(2).Value)
            cookie1.Domain = sUrl
            cc.Add(cookie1)
        Next
        Console.ReadLine()
        c1.Add(cc)
    End Sub

//How to Resolve.

name and value of a cookie can not begin with spaces,so add a trim to the name and value

VS Whidbey: IDE features for building ASP.NET applications

Montaque — Tue, 03 Feb 2004 07:18:00 GMT

VS Whidbey: IDE features for building ASP.NET applications
Agenda
Design goals
Area drill-downs and demos
Summary
VS “Whidbey” Web Themes
Provide the best tool for building ASP.NET applications
Project system geared for web development
Build the richest source editor for ASP.NET and HTML
Improve designer surface for common visual tasks – page layout, control editing
Faster Web development
“Whidbey” Project System
Geared for web development
Edit Web Sites Anywhere
No setup required to do Web development
IIS and FPSE supported but not required
Built in development server for debugging
Several options for editing web sites
Filesystem – c:\web or \\server\web
Direct manipulation of Local IIS (no FPSE)
FTP
Frontpage Server Extensions
Web Friendly Project System
Directory based web project system
Better team development
No project file locking between users
No duplication of project file data
Simple point-and-open folder editing enables interoperability
Single file editing
No project required
Intellisense and designer support
Remote Site Publishing
Support for FTP, UNC, or FPSE protocols
Visual tool for copying files to/from remote site
Supports copy of full site, or selected files
Copy each direction or two way synchronize
Visually identify local and remote changes
Detects issues and provides conflict resolution

“Whidbey” Project System
“Whidbey” Source Editor
Meets all of your needs
Intellisense Everywhere!
HTML and ASPX markup
Directives - <@Page, <@Register,…
Inline code within ASPX / HTML
Client VBScript and Jscript in <script> blocks
<script runat=server> sections in ASPX file
<% %> blocks in ASPX file
Inline CSS styles
Web.config
XML files
You Have Total Control
Tools to quickly navigate your code
Tag navigator
Outlining for HTML / ASPX tags
Document outline
Drop-downs for navigation
Inline client script
Server code

You Have Total Control
Tools to quickly navigate your code
Tag navigator
Outlining for HTML / ASPX tags
Document outline
Drop-downs for navigation
Inline client script
Server code
Get code to look exactly the way you like
Full control over formatting rules
Allows customization on a per tag basis
New content gets defined formatting
Validation Options
Validate against browsers and standards
Common browsers – IE, Netscape, Opera
Popular web standards
HTML 3.2 / 4.0
XHTML 1.0 / 1.1 Transitional, Strict, Frameset
User controllable validation
Casing, quoting, and tag closure preferences
Accessibility Checker
Section 508/WCAG Compliance
Integrated with task list
Cleaner Code-behind
Now using partial classes model
Less brittle code
No designer wire-up needed
All the generated goop goes away
Enables easy designer/developer interaction
More OO code editing support

“Whidbey” Source Editor
“Whidbey” Design Surface
Enhanced visual page development
Intelligent Code Generation
Designer never modifies your code
100% preservation of existing formatting and whitespace
Only modifies elements you edit
Modern and standards based
Design surface creates XHTML 1.1 compliant, CSS styles based code
Generates code using your formatting preferences
Enhanced Visual Editing
Master pages for shared layout
Easily maintain common look and feel
Design surface provides visual feedback
Improved template editing model
Drop-down to quickly switch in/out of template mode
Controls render default content in templates
User control rendering on design surface
SmartTags expose common control tasks
Table Editing
Easily design and build tables
Insert pre-defined/custom table layouts
Use table builder to define complex tables
Table Editing
Easily design and build tables
Insert pre-defined/custom table layouts
Use table builder to define complex tables
Table Editing
Easily design and build tables
Insert pre-defined/custom table layouts
Use table builder to define complex tables
Precise table sizing using visual feedback
New visual cues to help select rows/columns/cells
Makes navigating tables intuitive
“Whidbey” Design Surface
Faster Web Development
All the power of before, more flexibility
RAD Development
Faster development cycles
Can browse changes without having to build
Quickly test incremental updates
Faster project open (IBuySpy Portal)
VS 2003: ~1 minute
VS Whidbey: Less than 5 seconds
New Build Page feature
Build and view code changes at page level
Especially useful for C# and J#

RAD Development
\Code directory for class files
Location for class files within web site
Reference classes within ASPX pages
Full Intellisense support
Better team development
Multiple developers can work on different parts of site without build conflicts
Compile errors on one page don’t block development on others
Directory based projects eliminate project file contention
More Build Options
Build and F5 behavior
Compile errors for entire site to task list
<asp> compilation errors to task list
Web.config compilation errors to task list
Optional: Section 508 / WCAG validation
Configure F5 to your preference
Build Site, Build Page, or Save/Browse
Fully Compiled Sites
Pre-compile sites for deployment
Better performance with code-behind and ASPX compiled together
Better IP protection
Compilation of ASPX file allows protection of ASPX and HTML markup
VS.NET automatically obfuscates IL upon compilation

RAD Web Development
Seamless upgrade
Open, compile, run
Full Backwards Compatibility
Visual Studio .NET 2003 applications work
Open, compile, and run upgrade model
Pages updated to new code-behind syntax
Standalone classes moved under \Code folder
Control ASP.NET version on a directory basis in IIS
ASP.NET 1.0 / 1.1 applications co-exist with ASP.NET “Whidbey” applications on same IIS
Project upgrade
Summary
Visual Studio “Whidbey” is the best tool for building ASP.NET applications
Many new web development features to try out today in the Alpha build
Many more exciting new features coming in Beta
Questions?
Brian Goldfarb (bgold@microsoft.com)
http://blogs.gotdotnet.com/bgold/
Omar Khan (omark@microsoft.com)

Download Slides/Demos
ASP.NET Whidbey Book
Now available for PDC bits
13 Chapters, 470 Pages
Topics Covered
Introduction, Tools & Architecture, Data Source Controls and Data Binding, GridView & DetailsView Controls, Master Pages & Navigation, Security, Personalization & Themes, Web Parts, Mobile Device Support, SQL Cache Invalidation, Precompilation, Confuguration & Administration and more.
ASP.NET 2.0 Hands-On Labs
Great Hands-on Walkthroughs (8 hours worth!)
Located in Petree Hall (proctors available for questions)
Nine Labs
Introduction
Data Controls

the next generation of VS.NET

Montaque — Fri, 30 Jan 2004 08:40:00 GMT

Visual Studio code name "Whidbey" (2004). This release of Visual Studio and the .NET Framework will offer innovations and enhancements to the class libraries, common language runtime (CLR), programming languages, and the integrated development environment (IDE). In addition, this product will provide deep support for SQL Server code name "Yukon" by enabling developers to write stored procedures using managed code.
Visual Studio code name "Orcas" (2005). This version of Visual Studio and the .NET Framework will provide tools support for the Windows operating system, code name "Longhorn."

http://msdn.microsoft.com/vstudio/productinfo/roadmap.aspx

MSBuild-the Next generation build engine

Montaque — Fri, 30 Jan 2004 07:05:00 GMT

MSBuild is the [extensible, scalable, transparent] next generation build engine and platform for Visual Studio .NET. Many of our sharpest PMs, developers, testers, and yes, even writers, are feverishly working on this project.

more information about MSbuild.exe , there is a webcast about this tool:

http://msdn.microsoft.com/msdntv/episode.aspx?xml=episodes/en/20040122VSNETAK/manifest.xml