ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / LayoutTool Class / HandleMouseUpAsync Method
A LayoutViewMouseButtonEventArgs that contains the event data.

HandleMouseUpAsync Method (LayoutTool)
Occurs when the OnToolMouseUp event is handled.
Syntax
protected virtual Task HandleMouseUpAsync( 
   LayoutViewMouseButtonEventArgs args
)

Parameters

args
A LayoutViewMouseButtonEventArgs that contains the event data.

Return Value

A Task that represents a mouse up event.
Remarks
This method is intended to perform asynchronous operations associated with a mouse up event. It will be called if you override the OnToolMouseUp virtual method and set the handled property on the LayoutViewMouseButtonEventArgs to true.
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.9 or higher.
See Also