NoStartupFormException Class

This exception is thrown by the Visual Basic Application Model when the MainForm property has not been set.

Namespace: Microsoft.VisualBasic.ApplicationServices
Assembly: Microsoft.VisualBasic (in microsoft.visualbasic.dll)

public class NoStartupFormException : Exception
/** @attribute SerializableAttribute() */ 
public class NoStartupFormException extends Exception
public class NoStartupFormException extends Exception
Not applicable.

The Visual Basic Application Model requires that the application set the MainForm property before running the OnRun method. If the property is not set, the Visual Basic Application Model raises this exception. For more information, see Extending the Visual Basic Application Model.


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 98, Windows Server 2000 SP4, Windows Millennium Edition, 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, 2.0

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