Failed to access IIS metabase

  Resolution for error: “Failed to access IIS metabase” while browsing a web site from local host on XP machine with IIS 5.1 version Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Follow following steps to resolve the issue - 1. Unregistered...

Anonymous Types in Visual Basic

Anonymous Types  in Visual Basic Visual Basic 2008 introduces anonymous types, which enable you to create objects without writing a class definition for the data type. Instead, the compiler generates a class for you. The class has no usable name, inherits directly from Object, and contains the properties you specify in declaring the object. Because the name of the data type is not specified, it...

Microsoft Visual Studio LightSwitch – Introduction

What is Microsoft Visual Studio LightSwitch?   Microsoft has finally announced the Visual Studio LightSwitch, which is featured as the newest member of the Visual Studio product family. Microsoft Visual Studio LightSwitch gives you a simpler and faster way to create professional-quality business applications for the desktop, the web, and the cloud. Microsoft has revealed that LightSwitch dramatically...

Total instances running of application in C# .NET

Total number of instances running of application in C# .NET Many times we needs to find how many instances of particular application or process are running. This can be used in allowing to run only single instance of application or at most 2 etc. Also count can be useful for licensing and other stuff. So here is simple code to find out how many number of instances are running for particular application...

Setting up Master Page at runtime in asp.net

Setting up Master Page at runtime in asp.net   Many times we needs to decide master page at runtime. Here is quick help for the same. You will have to use ‘Page_PreInit’ method. In that set MasterPageFile attribute of current page to required master page. And Done ! protected void Page_PreInit(object sender, EventArgs e) { this.Page.MasterPageFile = “~/MasterPages/” + mymaster...

Custom Installer Class to create setup tasks in Visual Studio Setup Project

Custom Installer Class to create setup tasks in Visual Studio Setup Project Sometimes we have to perform custom tasks that are not there in ‘Visual Studio setup project’. Installer Classes are great tools that you can develop and integrate with your Setup and Deployment Projects in order to perform additional tasks while running any application’s installation or un-installation process, though...

Visual Studio 2010 Samples for C# 4.0

Visual Studio 2010 Samples for C# 4.0 We break out the C# samples into two different categories: Language Samples LINQ Samples Language Samples The language samples familiarize you with various C# language features. They are available in the LanguageSamples folder. The C# 4.0-specific samples are called: Named and Optional Office Sample Python Sample Simple Variance Here is the complete list...

Take and Skip Partition Operator in LINQ

Many times we have requirement, to fetch partial result set from collection like Arrays, DataTable. To achieve the same we can use Take and Skip Partition Operator of LINQ. Skip Partition Operator Reference: http://msdn.microsoft.com/en-us/library/bb358985.aspx Take Partition Operator Reference: http://msdn.microsoft.com/en-us/library/bb503062.aspx For this we will consider following example of Array...

app.config modification issue in Windows 7

File modification issue in Windows 7 for program files content We have developed many windows application using C# or VB.NET. In that we stored connection string and other required data in ‘app.config’ file, and we modify that file using our application to store latest connection or other information. This is standard practice and works as well. But in ‘Windows 7’ OS architecture is changed...

Coding Standards in .NET : Naming Guidelines

A comprehensive coding standard is essential for a successful product delivery. The standard helps in enforcing best practices and avoiding pitfalls, and makes knowledge dissemination across the team easier. The C# coding standard presented here is very thin on the “why” and very detailed on the “what” and the “how.” The coding standard presented next captures best practices, dos and...

Standard Coding Practices in .NET

A comprehensive coding standard is essential for a successful product delivery. The standard helps in enforcing best practices and avoiding pitfalls, and makes knowledge dissemination across the team easier. The C# coding standard presented here is very thin on the “why” and very detailed on the “what” and the “how.” The coding standard presented next captures best practices, dos and...

Transport level security VS message level security in WCF

Transport level security VS message level security in WCF   Advantages of Transport level security Does not need any extra coding as protocol inherent security is used. Performance is better as we can use hardware accelerators to enhance performance. There is lot of interoperability support and communicating clients do not need to understand WS security as it’s built in the protocol itself. Disadvantages...

WCF Security modes provided in .NET

WCF Security modes provided in .NET Across all service bindings there are five possible security modes: None. Turns security off. Transport. Uses transport security for mutual authentication and message protection. Message. Uses message security for mutual authentication and message protection. Both. Allows you to supply settings for transport and message-level security (only MSMQ supports this). TransportWithMessageCredential....

Default types of WCF bindings in .NET

Default types of WCF bindings in .NET   Within the Windows Communication Foundation programming model, bindings are represented by the System.ServiceModel.Channels.Binding class. All binding classes must derive from this base class. Following are the different bindings provided by WCF by default: 1. BasicHttpBinding 2. WSHttpBinding 3. WSDualHttpBinding 4. WSFederationHttpBinding 5. NetTcpBinding...

Enable SQL encryption in ASP.NET

Database Encryption is ASP.NET   If you are using the ADO.NET SQL Server managed data provider and a SqlConnection object to connect to SQL Server, then you can enable encryption by adding the encrypt=true parameter to the connection string as shown here. <configuration>    <connectionStrings>       <add name="MyDbConn"       ...

Client Credential Type in WCF

Different Client Credential Type provided in WCF – Windows communication foundation   The choice of client credential type depends on the security mode in place. For transport security you can require a Windows credential or certificate-and there are variations on how Windows credentials are passed via TCP, HTTP and MSMQ. Message security supports any of the following settings for clientCredentialType: None...

Modules in IIS 7 and their functionality

IIS 7.0 modules and their functionality   Following are the modules which are available in IIS 7 by default.   Module name Description HTTP modules   CustomErrorModule Sends default and configured HTTP error messages when an error status code is set on a response HttpRedirectionModule Supports configurable redirection for HTTP requests OptionsVerbModule...

What Is Message level Security in WCF?

What Is Message level Security in WCF?   Message security uses the WS-Security specification to secure messages. The specification describes enhancements to SOAP messaging to ensure confidentiality, integrity, and authentication at the SOAP message level (instead of the transport level). In brief, message security differs from transport security by encapsulating the security credentials and claims...

Get Vs Post Method

Get Vs Post Method in HTML, PHP and ASP.NET   Using "get" to pass information sends the information appended to the request for the processing page. It tends to be simpler and you can troubleshoot any problems simply by looking at the address bar in your browser since all values passed are displayed there. This is also the primary weakness of this method. The data being passed is visible...