>Hi All, I need to declare a generic list of a type which is decided at runtime, the type is one of several classes that all implement a common interface , I'm unsure how to do this, at first I thought I could use the Type of the class to create a list but this is not so - a small example of what I mean is shown below
>
>

>
>IMyInterFace  i = GetClassType();
>
>List<i> mylist = new List<i>();
>
>
>IMyInterFace GetClassType()
>{
>  if(SomeCondition)
>    return ClassA;
>  else
>    return classB;
>}
>

Think you have to cast to the interface, Pete

This compiles

	static class Test_GenericInterface
	{
		internal static void Go()
		{
			List<ITest> theList = new List<ITest>();

			theList.Add(GetElement(true));
		}
		static ITest GetElement( bool isFirst)
		{
			if (isFirst)
				return (ITest)(new ClassA());
			else
				return (ITest)(new ClassB());

		}
	}

	interface ITest
	{
		int Get();
	}
	class ClassA : ITest
	{
		public int Get()
		{
			return 1;
		}

	}
	class ClassB : ITest
	{
		public int Get()
		{
			return 3;
		}
	}
}