An item with the same key has already been added error
Posted on 2007-10-15
I have created custom button control that behave as image button for my Windows C# app, however the control added successfully to all forms except one form that when adding to it and try to select the image for it from properties windows at design time,, i recieve this message:
"An item with the same key has already been added"
Anyone have an idea why this happens with this form only!