Sql Server Timeout expired

Greetings,

How I can change the Sql Server timeout to keep me out the following error

  System.Data.SqlClient.SqlException was unhandled by user code
  Class=11
  ErrorCode=-2146232060
  LineNumber=0
  Message="Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding."
  Number=-2

Please check : http://social.msdn.microsoft.com/Forums/en/vblanguage/thread/57dc992f-fcc4-4b17-8187-a9002c4bc28c

Hope this helps.