WPF Binding Failure performance hit vs Exception

Question

when we bind to heterogeneous collection of objects, not all objects have the same set of properties. in the output window we get a message like:

Syst

Answer 1

I haven't tested this myself but a blog post from the Visual Studio team says that binding errors indeed impact performance:

WPF tries several different ways to resolve path errors, including searching for attached properties and this is quite expensive.