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Dispatcher.UnhandledException Event

Occurs when a thread exception is thrown and uncaught during execution of a delegate by way of Invoke or BeginInvoke.

Namespace: System.Windows.Threading
Assembly: WindowsBase (in windowsbase.dll)

public event DispatcherUnhandledExceptionEventHandler UnhandledException
/** @event */
public void add_UnhandledException (DispatcherUnhandledExceptionEventHandler value)

/** @event */
public void remove_UnhandledException (DispatcherUnhandledExceptionEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
You cannot use this event in XAML.

This event is raised when an exception that was thrown during execution of a delegate by way of Invoke or BeginInvoke is uncaught.

A handler can mark the exception as handled which will prevent the internal exception handler from being called.

Event handlers for this event must be written with care to avoid creating secondary exceptions and to catch any that occur. It is recommended to avoid allocating memory or doing any resource intensive operations in the handler.

The UnhandledExceptionFilter event provides a means to not raise the UnhandledException event. The UnhandledExceptionFilter event is raised first, and If RequestCatch on the DispatcherUnhandledExceptionFilterEventArgs is set to false, the UnhandledException event will not be raised.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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