WebException Constructor (String)

 
System_CAPS_noteNote

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Initializes a new instance of the WebException class with the specified error message.

Namespace:   System.Net
Assembly:  System (in System.dll)

public WebException(
	string message
)

Parameters

message
Type: System.String

The text of the error message.

The WebException instance is initialized with the Message property set to the value of message. If message is null, the Message property is initialized to a system-supplied message. The InnerException and Response properties are initialized to null. The Status property is initialized to RequestCanceled.

The following example throws a WebException by specifying an error message.

  try
    {
   // A 'Socket' object has been created.
   Socket httpSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

   // The IPaddress of the unknown uri is resolved using the 'Dns.Resolve' method. 
   IPHostEntry hostEntry = Dns.Resolve(connectUri);

   IPAddress serverAddress = hostEntry.AddressList[0];
   IPEndPoint endPoint = new IPEndPoint(serverAddress, 80);
    httpSocket.Connect(endPoint);
   Console.WriteLine("Connection created successfully");
   httpSocket.Close();
}
    catch(SocketException e)
{		     
   Console.WriteLine("\nException thrown.\nThe Original Message is: "+e.Message);
   // Throw the 'WebException' object with a message string specific to the situation.
   throw new WebException("Unable to locate the Server with 'www.contoso.com' Uri.");
}

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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