Control.ControlAccessibleObject.RaiseLiveRegionChanged Method

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

Control.ControlAccessibleObject.cs

Raises the LiveRegionChanged UI automation event.

public:
 override bool RaiseLiveRegionChanged();

public override bool RaiseLiveRegionChanged ();

override this.RaiseLiveRegionChanged : unit -> bool

Public Overrides Function RaiseLiveRegionChanged () As Boolean

Returns

Boolean

true if the operation succeeds; otherwise, false otherwise.

Exceptions

InvalidOperationException

The owner control is not a live region.

Remarks

For this method to be effective, the control must implement the System.Windows.Forms.Automation.IAutomationLiveRegion interface, and its LiveSetting property must return either AutomationLiveSetting.Polite or Assertive. In addition, the application must be recompiled to target .NET Framework 4.8 or opt in to this feature by using compatibility switches.