Form.ShowWithoutActivation Property


Gets a value indicating whether the window will be activated when it is shown.

 virtual property bool ShowWithoutActivation { bool get(); };
protected virtual bool ShowWithoutActivation { get; }
member this.ShowWithoutActivation : bool
Protected Overridable ReadOnly Property ShowWithoutActivation As Boolean

Property Value


true if the window will not be activated when it is shown; otherwise, false. The default is false.



Use this property if you want to show a top-level window, but don't want to interrupt a user's work by taking the input focus away from the current window. This can be an informational pop-up window or a floating window, such as a Tools palette in the Paint application.

Because this property is read-only, you can only change its value by overriding ShowWithoutActivation in your own form, and programming it to return true.

If your non-activated window needs to use UI controls, you should consider using the ToolStrip controls, such as ToolStripDropDown. These controls are windowless, and will not cause a window to activate when they are selected.

Applies to

See also