Updating,deleting a datagridview

Question

Hi friends,

I'm a beginner in .Net. I want a simple understandable code for above issue. currently i'm working in windows forms project. if possible (with many hopes!!) can you post the step by step process code for this.

I gave a sample window form of mine. My issue is when ever I select the check boxes (single or multiple) and press update or delete buttons it should perform that action by saving it in db. guys please help me.

thanx in advance
Ram