WebException Constructor (String, Exception)
Initializes a new instance of the WebException class with the specified error message and nested exception.
Assemblies: System.Net.Requests (in System.Net.Requests.dll)
System (in System.dll)
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 Nothing, the Message property is initialized to a system-supplied message. The InnerException and Response properties are initialized to Nothing. 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. Dim httpSocket As New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp) ' The IPaddress of the unknown uri is resolved using the 'Dns.Resolve' method. Dim hostEntry As IPHostEntry = Dns.Resolve(connectUri) Dim serverAddress As IPAddress = hostEntry.AddressList(0) Dim endPoint As New IPEndPoint(serverAddress, 80) httpSocket.Connect(endPoint) Console.WriteLine("Connection created successfully") httpSocket.Close() Catch e As SocketException Console.WriteLine((ControlChars.Cr + "Exception thrown." + ControlChars.Cr + "The 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) End Try