Dynamicaly create childrows inside a gridview

Hi friend,

I am trying to create a dynamic table inside a gridview as childrows when we select a dropdownlist item in a row.

consider in dorpdownlist the items are 1,2,3. When we select 2 in dropdown, 2 childrows should be created.When we select 3 three child rows shouold be created.and default is 1.The dropdown list is inside the gridview which is a part of childrow.

Default child row is 1.

can you/anyone help me.

thanks

Naveen