GridView的RowDataBound用法

1.  /// <summary>
2.         /// 綁定行時觸發
3.         /// </summary>
4.         /// <param name="sender"></param>
5.         /// <param name="e"></param>
6.         protected void gvwUser_RowDataBound(object sender, GridViewRowEventArgs e)
7.         {
8.             if (e.Row.RowType == DataControlRowType.DataRow)
9.             {
10.                 if (e.Row.RowState == DataControlRowState.Edit)
11.                 {
12.                     HeadShipDropDownList dropEditHeadShip = (HeadShipDropDownList)e.Row.FindControl("dropEditHeadShip");
13.                     DepartmentsDropDownList dropEditDepartments = (DepartmentsDropDownList)e.Row.FindControl("dropEditDepartments");
14.                     RoleDropDownList dropEditRole = (RoleDropDownList)e.Row.FindControl("dropEditRole");
15.                     DropDownList dropEditSex = (DropDownList)e.Row.FindControl("dropEditSex");
17.                     //職位                   
18.                     dropEditHeadShip.FDAID = this.FDAID.ToString();
19.                     dropEditHeadShip.DataBind();
20.                     dropEditHeadShip.SelectedValue = Convert.ToString(DataBinder.Eval(e.Row.DataItem, "iHsId"));
21.                    
22.                     //角色                    
23.                     dropEditRole.FDAID = this.FDAID.ToString();
24.                     dropEditRole.DataBind();
25.                     
26.                     //部門                    
27.                     dropEditDepartments.UnitId = this.FDAID;
28.                     dropEditDepartments.DataBind();
29.                     
30.                     //性別                    
31.                     dropEditSex.DataBind();
32.                     
33.                 }
34.             }
35.         }

要添加if (e.Row.RowState == DataControlRowState.Edit)判斷,否則會出錯