I'm trying to make a User Control. When I right-click on the toolbox and select "Choose Items...", then "Browse...", then my .dll, it gives me that error.
- My classes are public
- I have tried clicking over to the WPF tab in the toolbox
- I am extending UserControl
I have never seen this before. These are all the proposed solutions I could find that seem to work for other people, and none of them work for me. Thanks
