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WindowsFormsApplicationBase.MainForm Property

Gets or sets the main form for this application.

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

protected Form MainForm { get; set; }

Property Value

Type: System.Windows.Forms.Form
Gets or sets the main form for this application.

Use the MainForm property to get or set the Form object that the Visual Basic Application Startup/Shutdown model uses as the application's main form.

This property supports the Visual Basic Application Startup/Shutdown model. For more information, see Overview of the Visual Basic Application Model.

The changes to this property are not persisted when the application closes. To change the main form permanently, you must change the setting in the Project Designer. For more information, see How to: Change the Startup Object for an Application (Visual Basic).

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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