updating datagridview and sql server

Hi List,

I have a data grid view, which I would like to update it in the following steps, I really appreciate your thought/help.

1-create my own column name, in a programmatic/generic way

2-click in a cell and update the number, then the associated cells get updated using data from SQL serve

3-make the value comma separated like 2,345 instead of 2345

I know most of these might be very basic.

thanks,

Arvin