topic Anyone have example C# using QueuedTask.UIScheduler? in ArcGIS Pro Questions

Anyone have example C# using QueuedTask.UIScheduler?

ArwenVaughan1 — Fri, 09 Oct 2020 22:19:52 GMT

Anyone have example C# using QueuedTask.UIScheduler? I have a lot of code that is running in worker thread using QueuedTask.Run but need to somehow dispatch a call to update the gui in the middle of it all. Any examples using UIScheduler or C# .Net would be great.

Re: Anyone have example C# using QueuedTask.UIScheduler?

KoryKramer — Mon, 12 Oct 2020 12:50:50 GMT

Hi Arwen,

Maybe somebody in the ArcGIS Pro SDK‌ group could help...

Re: Anyone have example C# using QueuedTask.UIScheduler?

Anonymous User — Sun, 12 Dec 2021 02:02:16 GMT

Arwen,

You can use BeginInvoke to execute on the UI thread.

    private void onLayersAddRem(LayerEventsArgs obj)
    {
      //regenerate snaplist when layers are added or removed
      //run on UI Thread to sync layersadded event (which runs on background)
      System.Windows.Application.Current.Dispatcher.BeginInvoke((Action)(() => { PopulateSnapList(); }));
    }‍‍‍‍‍‍

In this example I am updating a datagrid in a dockpane from the background thread.