How to determine if a Type is of RunTimeType?

c#

Solution

I guess that you actually want to know if a `Type` object describes the `Type` class, but the `Type` object is `typeof(RuntimeType)` and not `typeof(Type)` and so comparing it to `typeof(Type)` fails.

What you can do is check if a instance of the type described by the `Type` object could be assigned to a variable of type `Type`. This gives the desired result, because `RuntimeType` derives from `Type`:

private bool IsTypeOfType(Type type)
{
    return typeof(Type).IsAssignableFrom(type);
}

If you really need to know the `Type` object that describes the `Type` class, you can use the GetType Method:

private bool IsRuntimeType(Type type)
{
    return type == typeof(Type).GetType();
}

However, because `typeof(Type) != typeof(Type).GetType()`, you should avoid this.

Examples:

IsTypeOfType(typeof(Type))                          // true
IsTypeOfType(typeof(Type).GetType())                // true
IsTypeOfType(typeof(string))                        // false
IsTypeOfType(typeof(int))                           // false

IsRuntimeType(typeof(Type))                         // false
IsRuntimeType(typeof(Type).GetType())               // true
IsRuntimeType(typeof(string))                       // false
IsRuntimeType(typeof(int))                          // false

Problem

Original source