Display data's in grid

Hi am developing a Billing project(for one company) using C# windows application forms, In that am using DATAGRIDVIEW to display all the data's, But am trying to 开发者_开发百科bind the values product wise that is given by user in the producttextbox with auto completion(that is if am giving A means it will display in the DATAGRID all the products that are related with A like A,AA,AAAA) i need a help to do......

Take a look at this...

http://www.java2s.com/Code/CSharp/Components/UseanAutocompleteComboBox.htm