Question

In C#, how can I find if a given object has a specific ancestor?

For example, say I have the following class structure.

ContainerControl
 |
 +----> Form
          |
          +--> MyNormalForm
          |
          +--> MyCustomFormType
                  |
                  +---> MyCustomForm

If I have a method like this:

 void MyCoolMethod (Form form)

How do I find if form descends from MyCustomFormType or not?

Answer 1

if (form is MyCustomFormType) {
    // form is an instance of MyCustomFormType!
}