http://msdn.microsoft.com/en-us/library/Aa289519

 

Windows Forms versus Web Forms DataGrid Controls
Controlling Column Width, Height, and Alignment
Customizing Column Layout in Display and Edit Mode
Formatting Dates, Currency, and Other Data
Showing and Hiding Columns Dynamically
Adding Columns Dynamically
Adding New Records to a Data Source Using the DataGrid Control
Displaying a Drop-Down List in Edit Mode
Selecting Multiple Items Using a Check Box (Hotmail Model)
Editing Multiple Rows At Once
Selecting Rows by Clicking Anywhere