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c#wpfmethodscontrolsextend

C# 'object' Extend method just for WPF ListBox Control

I had create a extend method for WPF ListBox control for treat ListBox SelectedItem, but I want turn this better, I want show my extend method when I type listBox1.SelectedItem.MyExtendMethod();

I can change my method for public static void MyExtendMethod(this object item), but it will show for all 'object'

What can I do for this extend method just show for ListBox>objects? this is possible?

Solution

  • Well, no. Since extension methods know nothing about the call site, you can't restrict one to ListBox.SelectedItem. You're probably better off just applying it to ListBox.