topic Re: Get reference to view model from child control class in ArcGIS Pro SDK Questions

Get reference to view model from child control class

PeteVitt — Thu, 28 Jul 2022 23:55:57 GMT

Hi – I’m working with the ArcGIS Pro sdk 3.0 and have a DockPane view model that contains a MapTool. I'd like to get a reference to the DockPane View Model from the MapTool class code to set some properties back on the DockPane. In the code below I’m getting an error ‘DockPane is a type, which is not valid in the given context’. Is there a way I can correct this? I’ve seen this work getting a reference to an EmbeddableControl ViewModel in the SequentialNumberTool Sample (https://github.com/Esri/arcgis-pro-sdk-community-samples/blob/master/Editing/SequentialNumberTool/SeqNumTool.cs)

…

using ArcGIS.Desktop.Framework.Contracts;

…

internal class LandscapeSelectionTool : MapTool

{

Dockpane1ViewModel _vm;

…

protected override Task OnToolActivateAsync(bool active)

{

_vm = DockPane as Dockpane1ViewModel;//Error occurs here

return base.OnToolActivateAsync(active);

}

…

}

Thanks

Pete

Re: Get reference to view model from child control class

CharlesMacleod — Fri, 29 Jul 2022 01:06:08 GMT

"Dockpane" is a type, not a Dockpane instance which is what u are after.

cast the returned value from FrameworkApplication.DockPaneManager.Find("dockpane_id") to your dockpane view model class. For instance:

_vm = FrameworkApplication.DockPaneManager.Find( "ProAppModule1_Dockpane1") as Dockpane1ViewModel;

This is, essentially, the same thing the auto-generated code for the Dockpane item template is doing when it consrtucts its "default" Show method (to activate the dockpane in the first place).

/// <summary> /// Show the DockPane. /// </summary> internal static void Show() { DockPane pane = FrameworkApplication.DockPaneManager.Find(_dockPaneID); if (pane == null) return; pane.Activate(); }

Re: Get reference to view model from child control class

GKmieliauskas — Fri, 29 Jul 2022 11:34:41 GMT

Hi,

I suggest you to use Esri pattern EmbeddableControl. It has tool - dockpane connection realized already. How to use it you can found here:

ProGuide Using Embeddable Controls · Esri/arcgis-pro-sdk Wiki · GitHub