WebException Constructor (String)


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

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

Public Sub New (
	message As String


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.

    ' 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)
    Console.WriteLine("Connection created successfully")
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.
    Throw New WebException("Unable to locate the Server with 'www.contoso.com' Uri.")
End Try

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