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WebException Constructor (String, Exception)

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

Namespace:  System.Net
Assemblies:   System.Net.Requests (in System.Net.Requests.dll)
  System (in System.dll)

public WebException(
	string message,
	Exception innerException
)

Parameters

message
Type: System.String

The text of the error message.

innerException
Type: System.Exception

A nested exception.

The WebException instance is initialized with the Message property set to the value of message and the InnerException property set to the value of innerException. 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 and nested exception.


	      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;  
		         //  and the 'InnerException' which actually lead to this exception. 
		         throw new WebException("Unable to locate the Server with 'www.contoso.com' Uri.",e);
		   }

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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