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HttpWebRequest.ConnectionGroupName Property

Gets or sets the name of the connection group for the request.

Namespace:  System.Net
Assembly:  System (in System.dll)
public override string ConnectionGroupName { get; set; }

Property Value

Type: System.String
The name of the connection group for this request. The default value is null.

The ConnectionGroupName property enables you to associate a request with a connection group. This is useful when your application makes requests to one server for different users, such as a Web site that retrieves customer information from a database server.

Notes to Implementers:

Each connection group creates additional connections for a server. This may result in exceeding the number of connections set by the ServicePoint.ConnectionLimit property for that server.

The following code example show how to use user information to form a connection group, assuming that the variables username, password, and domain are set by the application before this code is called.

// Create a secure group name.
SHA1Managed Sha1 = new SHA1Managed();
Byte[] updHash = Sha1.ComputeHash(Encoding.UTF8.GetBytes("username" + "password" +  "domain"));
String secureGroupName = Encoding.Default.GetString(updHash);

// Create a request for a specific URL.
WebRequest myWebRequest=WebRequest.Create("http://www.contoso.com");

// Set the authentication credentials for the request.      
myWebRequest.Credentials = new NetworkCredential("username", "password", "domain"); 
myWebRequest.ConnectionGroupName = secureGroupName;

// Get the response.
WebResponse myWebResponse=myWebRequest.GetResponse();

// Insert the code that uses myWebResponse here. 

// Close the response.
myWebResponse.Close();
// Create a secure group name.
SHA1Managed* Sha1 = new SHA1Managed();
Byte updHash[] = Sha1->ComputeHash(Encoding::UTF8->GetBytes(S"usernamepassworddomain"));
String* secureGroupName = Encoding::Default->GetString(updHash);

// Create a request for a specific URL.
WebRequest* myWebRequest=WebRequest::Create(S"http://www.contoso.com");

// Set the authentication credentials for the request.      
myWebRequest->Credentials = new NetworkCredential(S"username", S"password", S"domain"); 
myWebRequest->ConnectionGroupName = secureGroupName;

// Get the response.
WebResponse* myWebResponse=myWebRequest->GetResponse();

// Insert the code that uses myWebResponse here.

// Close the response.
myWebResponse->Close();

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

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