ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Desktop.Editing.Events Namespace / ActiveTemplateChangedEvent Class / Subscribe Method
A delegate that is executed when the ActiveTemplateChangedEvent is published.
(optional) The type of reference used to maintain the delegate. false is a weak reference, true is a strong reference. (default value = false)
Example

In This Topic
    Subscribe Method (ActiveTemplateChangedEvent)
    In This Topic
    Subscribes to the ActiveTemplateChangedEvent.
    Syntax

    Parameters

    action
    A delegate that is executed when the ActiveTemplateChangedEvent is published.
    keepSubscriberAlive
    (optional) The type of reference used to maintain the delegate. false is a weak reference, true is a strong reference. (default value = false)

    Return Value

    A token that uniquely identifies the added subscription, and may subsequently be used with Unsubscribe.
    Example
    Active Template Changed
    ArcGIS.Desktop.Editing.Events.ActiveTemplateChangedEvent.Subscribe(OnActiveTemplateChanged);
    
    async void OnActiveTemplateChanged(ArcGIS.Desktop.Editing.Events.ActiveTemplateChangedEventArgs args)
    {
      // return if incoming template is null
      if (args.IncomingTemplate == null)
        return;
    
      // Activate two-point line tool for Freeway template in the Layers map
      if (args.IncomingTemplate.Name == "Freeway" && args.IncomingMapView.Map.Name == "Layers")
        await args.IncomingTemplate.ActivateToolAsync("esri_editing_SketchTwoPointLineTool");
    }
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.0 or higher.
    See Also