Gridview RowCommand

If you hav any button inside Gridview you handle that button under RowCommand like here Gridview have a Insert button inside Grid.

 protected void gvStuDetails_RowCommand(object sender, GridViewCommandEventArgs e)  
 {  
      if (e.CommandName.Equals("Insert"))  
      {   
           objStuCls.StuId = Convert.ToInt32(((DropDownList)gvStuDetails.FooterRow.FindControl("ddlNewStuId")).SelectedValue);  
           objStuCls.StuName = Convert.ToString(((TextBox)gvStuDetails.FooterRow.FindControl("txtNewStuName")).Text);  
           try  
           {   
                int int = objClassMasterBLL.InsertClassMaster(objStuCls);  
                if (int > 0)  
                {  
                     msgText = "Record Added Successfully !";  
                     gvStuDetails.EditIndex = -1;  
                     gvStu();  
                }  
                else  
                {  
                     msg.Text = "This record already exists !";  
                }  
           }  
           catch (Exception ee)  
           {  
                msg.Text = ee.Message.ToString();  
           }   
      }  
 }  

Thanks & Regards
Santosh