Is it possible through the Design editor to assign the backround color for a gridview row that is currently being edited? I have tried creating a Custom Attribute entry using the example of <EditRowStyle BackColor="#ffff99" /> in different name and value combinations but none work. I am looking into doing this using the _RowCommand(object sender, GridViewCommandEventArgs e) … if(e.CommandName==“Edit”) in .Net code behind.
I recommend you using CSS or JQuery code by including it in the Web References section.
For example, you can locate the first row that contains a column that contains an input field (textbox) and change the color of the row to the desired color. (If the row contains a textbox field, that means it is in edit mode).