How to create a customized calendar with no Sat and Sun?

I have a TextBox and a Button. When I enter the Month and Year (Example: April, 2013) in the TextBox, and click on the button, a customized calendar for that particular Month should be displayed.

Note: There will be no Saturdays or Sundays in the calendar. Days will only be from Monday to Friday.

It should be a web-based ASP.NET application using C#.

How can I do this customized calendar? Provide a sample code that implements the above functionality.