This documentation is archived and is not being maintained.

ErrorEventArgs Class

Provides data for the Error event.

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

public ref class ErrorEventArgs : public EventArgs

ErrorEventArgs contains the Exception that caused the Error event. This class provides the GetException method to retrieve the exception.

The following example creates a new instance of ErrorEventArgs and initializes it with an Exception. Then the example calls GetException to retrieve the Exception and display the error message. There is no form associated with this code.

int main()

   // Creates an exception with an error message.
   Exception^ myException = gcnew Exception( "This is an exception test" );

   // Creates an ErrorEventArgs with the exception.
   ErrorEventArgs^ myErrorEventArgs = gcnew ErrorEventArgs( myException );

   // Extracts the exception from the ErrorEventArgs and display it.
   Exception^ myReturnedException = myErrorEventArgs->GetException();
   MessageBox::Show( String::Concat( "The returned exception is: ", myReturnedException->Message ) );

The following example shows how to create a FileSystemWatcher to monitor file changes (creates, deletes, renames, changes) occurring on a disk drive. The example also shows how to properly receive error notifications.

No code example is currently available or this language may not be supported.


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

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

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.

.NET Framework

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