How to write code for mouse event?

Question

I have a grid where i can select multiple item to another grid.Now my ques is if i select multiple item and when i double click it,so only the item on which the mouse focus should get selected.

Answer 1

On the grid you are catching the double click event - see if you have a SelectedXXX property (e.g. SelectedRows, SelectedCells) - the name of the property would depend on the type of the grid.

Posting more information about the type of control you are using will give you more accurate answers.