Code:
protected void ItemCategoryListView_RowCommand(object source, GridViewCommandEventArgs e)
        {
          
          
            if (e.CommandName == "EDITITEM")
            {
              
                btnSave.Visible = false;
                btnUpdate.Visible = true;
                GridViewRow row = (GridViewRow)(((Control)e.CommandSource).NamingContainer);
...