WebException Class (System.Net)

Switch on low bandwidth view

Collapse All

Language Filter

This page is specific to

Microsoft Visual Studio 2008/.NET-keretrendszer 3.5

Other versions are also available for the following:

.NET Framework Class Library

WebException Class

The exception that is thrown when an error occurs while accessing the network through a pluggable protocol.

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

Syntax

Visual Basic (Declaration)

<SerializableAttribute> _
Public Class WebException _
    Inherits InvalidOperationException _
    Implements ISerializable

Visual Basic (Usage)

Dim instance As WebException

[SerializableAttribute]
public class WebException : InvalidOperationException, 
    ISerializable

Visual C++

[SerializableAttribute]
public ref class WebException : public InvalidOperationException, 
    ISerializable

JScript

public class WebException extends InvalidOperationException implements ISerializable

Remarks

The WebException class is thrown by classes descended from WebRequest and WebResponse that implement pluggable protocols for accessing the Internet.

When WebException is thrown by a descendant of the WebRequest class, the Response property provides the Internet response to the application.

Inheritance Hierarchy

System..::.Object
  System..::.Exception
    System..::.SystemException
      System..::.InvalidOperationException
        System.Net..::.WebException

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

Version Information

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

Reference

WebException Members

System.Net Namespace

Exception