WebRequest.PreAuthenticate Property

public:
 virtual property bool PreAuthenticate { bool get(); void set(bool value); };

public virtual bool PreAuthenticate { get; set; }

member this.PreAuthenticate : bool with get, set

Public Overridable Property PreAuthenticate As Boolean

Property Value

true to pre-authenticate; otherwise, false.

Exceptions

Examples

The following example sets the PreAuthenticate property to true so that the NetworkCredential stored in the Credentials property will be sent to along with the resource request.

// Create a new webrequest to the mentioned URL.
WebRequest^ myWebRequest = WebRequest::Create( url );

// Set 'Preauthenticate' property to true. Credentials will be sent with the request.
myWebRequest->PreAuthenticate = true;

Console::WriteLine( "\nPlease enter your credentials for the requested Url" );
Console::WriteLine( "UserName" );
String^ UserName = Console::ReadLine();
Console::WriteLine( "Password" );
String^ Password = Console::ReadLine();

// Create a New 'NetworkCredential' object.
NetworkCredential^ networkCredential = gcnew NetworkCredential( UserName,Password );

// Associate the 'NetworkCredential' object with the 'WebRequest' object.
myWebRequest->Credentials = networkCredential;

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Create a new webrequest to the mentioned URL.
WebRequest myWebRequest=WebRequest.Create(url);

// Set 'Preauthenticate'  property to true.  Credentials will be sent with the request.
myWebRequest.PreAuthenticate=true;

Console.WriteLine("\nPlease enter your credentials for the requested Url");
Console.WriteLine("UserName");
string UserName=Console.ReadLine();
Console.WriteLine("Password");
string Password=Console.ReadLine();

// Create a New 'NetworkCredential' object.
NetworkCredential networkCredential=new NetworkCredential(UserName,Password);

// Associate the 'NetworkCredential' object with the 'WebRequest' object.
myWebRequest.Credentials=networkCredential;

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse myWebResponse=myWebRequest.GetResponse();

' Create a new webrequest to the mentioned URL.
Dim myWebRequest As WebRequest = WebRequest.Create(url)

' Set 'Preauthenticate'  property to true.
myWebRequest.PreAuthenticate = True
Console.WriteLine(ControlChars.Cr + "Please enter your credentials for the requested Url")
Console.WriteLine("UserName")
Dim UserName As String = Console.ReadLine()
Console.WriteLine("Password")
Dim Password As String = Console.ReadLine()

' Create a New 'NetworkCredential' object.
Dim networkCredential As New NetworkCredential(UserName, Password)

' Associate the 'NetworkCredential' object with the 'WebRequest' object.
myWebRequest.Credentials = networkCredential

' Assign the response object of 'WebRequest' to a 'WebResponse' variable.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()

Remarks

With the exception of the first request, the PreAuthenticate property indicates whether to send authentication information with subsequent requests without waiting to be challenged by the server. When PreAuthenticate is false, the WebRequest waits for an authentication challenge before sending authentication information.

Applies to

See also

• PreAuthenticate