ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Framework.Events Namespace / ActiveToolChangedEvent Class / Unsubscribe Method / Unsubscribe(Action<ToolEventArgs>) Method
The method being called.
Example Version

Unsubscribe(Action<ToolEventArgs>) Method
Stop being notified when the event occurs.
Syntax
public static void Unsubscribe( 
   Action<ToolEventArgs> action
)

Parameters

action
The method being called.
Example
Subscribe to Active Tool Changed Event
private void SubscribeEvent()
{
  ArcGIS.Desktop.Framework.Events.ActiveToolChangedEvent.Subscribe(OnActiveToolChanged);
}
private void UnSubscribeEvent()
{
  ArcGIS.Desktop.Framework.Events.ActiveToolChangedEvent.Unsubscribe(OnActiveToolChanged);
}
private void OnActiveToolChanged(ArcGIS.Desktop.Framework.Events.ToolEventArgs args)
{
  string prevTool = args.PreviousID;
  string newTool = args.CurrentID;
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also