create dynamic datagrid

Hello, below is a data grid that I would like to dynamically create. The number of columns depends on the user input. The number of items under the each category depends on the each project (from database). Ex: this project (software = 4 items, hard drive = 3 items, memory = 4 items, & processor = 3 items). For each category and each column, user can only select one item. Memory category is an exception: user is allowed to select 2 items under each column, and the user must also select which selected item is primary and secondary. I have been struggle with this data grid for 2 weeks and can’t come up with anything. If anyone has any idea, please let me know. Thanks in advance. Col1 Col2 Col3 SOFTWARE XP-pro x Xp-home x Ms-Office x Sql HARD DRIVE 10GB x x 120GB 40GB x MEMORY 256 x1 x2 x2 512 x2 x1 1GB 2GB x1 PROCESSOR Intel 3.2 x Intel 3.6 x x Intel 3.xx