I know that I can access the currently selected entities when the user clicks on custom button via Map.GetSelection.
But let's say that I need the user to select a polyline somewhere along the way. Probably even from a wpf window because I need to get some information like length or num vertices from some polyline. Like this:
When the user clicks on "From Polyline", he can select a polyline and my code can determine the number of segments of that polyline and the result is displayed in the textbox.
Is that actually possible? And if yes, is there a best practice for doing this?
What I'm basically looking for is a "pick mechanic" just like AutoCAD offers. And since I'm coming from an AutoCAD background, I've been doing this a lot and I figured it should be doable in ArcGIS Pro as well :-)
Thanks in advance and Best Regards