>Hi Gregory and thanks, I should have been clearer, I don't want an instance of the class I need its type , what I need to do is get a List(T) from a Generic(T) class , the generic class expects a class of type IMyInterFace to create and populate a List(T) I show a code snippet below
>
>

>I create it like this at the moment
>
>if(some condition)
>    XLToList(MyClass) xlist = new XLToList(MyClass)();
>else
>    XLToList(MyOtherClass) xlist2 = new XLToList(MyOtherClass)();
>
>
>public class XlToList(T) where T : ITariffDataImport, new()
>    {
>        public delegate void Notify(object sender, CSVEventargs e);
>        public delegate void NotifyEveryRecord(int RecordNumber);
>        public event Notify OnFinishedProcessing;
>        public event Notify OnFoundBadTariff;
>        public event Notify OnFoundStartingRow;
>        public event NotifyEveryRecord OnProcessingRecords;
>
>
>        private Type thistype = typeof(T);
>
>        private List(T) data;
>
>        public List(T) Data
>        {
>            get
>            {
>                return data;
>            }
>            set
>            {
>                data = value;
>            }
>        }
>

>
>and the class uses T to create types and class instances etc... any clearer ? ( sorry I've used parentheses instead of angle brackets because of the UT limitations.)
>
>Thanks again Greg

I've got this, Pete

The Data member of XlToList is a list of the interface

You have to cast - see constructor of XlToList

	static class Test_GenericInterface
	{
		internal static void Go()
		{
			List<ITest> xlist;
		
			if (true)
				 xlist = new XlToList<ClassA>().Data;
			else
				xlist = new XlToList<ClassB>().Data;
			
		}
		
	}
	public class XlToList<T> where T : ITest, new()
	{
		public delegate void NotifyEveryRecord(int RecordNumber);
		public event NotifyEveryRecord OnProcessingRecords;


		private Type thistype = typeof(T);

		private List<ITest> data;

		public List<ITest> Data
		{
			get
			{
				return data;
			}
			set
			{
				data = value;
			}
		}
		public XlToList()
		{
			data = new List<ITest>();
			data.Add( (ITest)new T());
		}
	}
	public interface ITest
	{
		int Get();
	}
	public class ClassA : ITest
	{
		
		public int Get()
		{
			return 1;
		}

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