Question

I have a WPF custom content control inherits from Control and when developer drags this control from toolbox i want it to have a default content like expander control has.

<Expander>
     <Grid />
 </Expander> 

How can i do that ?

Thanks

Answer 1

Instead of inheriting from Control, you’ll need to inherit from ContentControl.

Here’s a sample blog post showing how this can be done. (The post is using Silverlight, but the technique is identical for WPF.)