Obtain the row index of the selected record in the gridview

I added imagebutton to the gridview for editing. When I directly reference the Edit Method Written In The bll layer, I can click it to apply it. I am now adding CodeDuring event processing, you must click the "select" button of the corresponding row before the system can locate the index of this row. It is very troublesome to modify this row every time. In addition, gridview1.selectedindex cannot obtain the current index.
Use the location of the control to obtain the index of the current row. Objective: int dd = (gridviewrow) (imagebutton) sender ). parent. parent ). rowindex; // obtain the index value of the current row
I hope that I can learn from my friends who have encountered the same problems.