on initialize a class by string variable in c#? I already found out how to create an class using a string
so what I already have is:
Type type = Type.GetType("project.start");
var class = Activator.CreateInstance(type);
what I want to do is call a function on this class for example:
class.foo();
is this possible? and if it is how?
Type yourType = Type.GetType("project.start");
object yourObject = Activator.CreateInstance(yourType);
object result = yourType.GetMethod("foo")
.Invoke(yourObject, null);
If you can assume that the class implements an interface or base class that exposes a Foo method, then cast the class as appropriate.
public interface IFoo
{
void Foo();
}
then in your calling code you can do:
var yourType = Type.GetType("project.start");
var yourObject = (IFoo)Activator.CreateInstance(yourType);
yourType.Foo();
It is possible but you will have to use reflection or have class be cast as the proper type at runtime..
Reflection Example:
type.GetMethod("foo").Invoke(class, null);
Activator.CreateInstance returns a type of object. If you know the type at compile time, you can use the generic CreateInstance.
Type type = Type.GetType("project.start");
var class = Activator.CreateInstance<project.start>(type);
var methodInfo = type.GetMethod("foo");
object result = methodInfo.Invoke(class,null);
The second argument to the Invoke method are the method parameters.
