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CS0246 (problem with user-defined namespace), C#.NET 2.0

I am new to C#, and created a simple Windows application in C#, just to test the logic needed. This was a simple log-in which contained a single namespace. Namespace included a class (in its own .cs file) containing regular expressions to validate the format of the entries (user id and password). The reason I put the reg. expressions code in a separate class was this was a "dry run" for functionality needed for a more complex web project.
I imported this regular-expressions class into my web application, and am now trying to call its methods from the code-behind of my login form (Default.aspx.cs). However, I get this error, even though I put the Using ..... directive for that class' file. I've been going around in circles trying to find out the right way to use user-defined namespaces in a C#.NET (2.0) project. Please advise, thanks in advance.

1 comment:

Anonymous said...

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.