User control with gridview

Question

I have a gridview insert update delete its working fine. I want to click edit button it should dispplay modal popup. in modalpopup it should display usercontrol that contains rows data what i have clicked. in usercontrol popup when i click save it should save in the database and it should display in gridview. how i should do. should i use delegates how can i do this.   plz help me   thanq.