Fill DropDownList

Hi All,

I was able to create a login page

http://forums.asp.net/t/1949899.aspx?Forms+with+login

How can I pass the user login ID as parameter on my query of the sql data source?

How can I attach the data source result in my DropDownList?

After that I want to do another query base on the selected index and display the results in the page using dynamic table format.

Any examples in the internet?

Thanks