Question

I have a base form (BaseForm) which needs to be inherited from all the forms in the project. Some of them inherit it, others not. How can I get a list of all those forms who currently don’t inherit it because we have a lot of forms and will be time consuming to go and check if each one of them inherits this form? Maybe some reflection ?

Answer 1

Use the check Type.IsSubclassOf().

Assembly assembly = Assembly.GetExecutingAssembly();
Type baseType = typeof(BaseForm);

foreach (Type type in assembly.GetTypes().Where(t => (t.FullName.Contains("Form") && (t != baseType))))
{
    if (type.IsSubclassOf(typeof(BaseForm)))
        Console.WriteLine("{0} is subclass of {1}", type, baseType);
}