Hi Greg, I think I should have been more precise. I knew I was passing the wrong data type to the .Add method. My problem was converting my string into a valid data type that the .Add will take. At the end I am doing as follows: StringReader sr = new StringReader(ClassLibrary1.Properties.Resources.jobs); XmlSchema schema = XmlSchema.Read(sr,null); sr.Close(); //Add the schema to the collection xss.Add(schema); Anyway, thanks for your post!

Glad to be of service.

You need to buy a book on C# and read it. It's pretty basic stuff that anything in quotes, is a verbatim string. Your variable name becomes a variable name only when it's not in quotes. @"c:\code\" + filename + ".txt"; Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )