topic Re: AddOverlayControl not adding to MapView in ArcGIS Pro SDK Questions

AddOverlayControl not adding to MapView

CarstenAndersson — Thu, 28 Nov 2024 14:58:00 GMT

I want to add a standard Slider control (System.Windows.Controls.Slider) as an overlay control in the active map view. My code is quite simple, but nothing is added to the map view and no exception is raised. Here's the code:

var sliderControl = new Slider
{
Minimum = 1,
Maximum = 10,
Width = 400,
Value = 1,
Height = 40,
Visibility = System.Windows.Visibility.Visible
};
var mapViewOverlayControl = new MapViewOverlayControl(sliderControl, true, false, false, OverlayControlRelativePosition.BottomCenter, .5, .8);
MapView.Active.AddOverlayControl(_mapViewOverlayControl);

Not sure what I'm doing wrong. Any help would be greatly appreciated.

Regards

Carsten

Re: AddOverlayControl not adding to MapView

GKmieliauskas — Thu, 28 Nov 2024 20:28:23 GMT

Hi,

You have global variable _mapViewOverlayControl (with underscore) which is null, I think. So change it to:

MapView.Active.AddOverlayControl(mapViewOverlayControl);

Without underscore it works fine

Re: AddOverlayControl not adding to MapView

CarstenAndersson — Mon, 06 Jan 2025 12:37:19 GMT

Of course. How could I miss that?! Thanks a lot 🙂