在网格视图中选择一行，现在想要使用更新按钮单击更新该记录

I have been stuck on this and tried a few different things to use the update button to update the record that I selected from the grid view. I have 2 columns in the table Id and Name. I select the record and it populates a text box with the name.... this works fine. I just need to take that same record and update the name from that same text box after it is pulled into the text box by using an update button click event. I have two other buttons that work just fine which are "Add" and "Delete" and I will add that code as well but here is the code:I have been stuck on this and tried a few diffe