如何实现gridview里的dropdownlist

1. 首先在gridview里添加一个TemplateField,也可以在.aspx页里相应位置直接写如下代码：
2.     <asp:TemplateField HeaderText="负责人">
3.                 <ItemTemplate>
4.                     <%# Eval("Manager") %>//非编辑状态下此列显示的内容
5.                 </ItemTemplate>
6.                 <EditItemTemplate>
7.                     <asp:DropDownList ID="ddlManager" runat="server">
8.                     </asp:DropDownList>
9.                 </EditItemTemplate>
10.                 <ControlStyle Width="50px" />
11.                 <HeaderStyle Width="50px" />
12.                 <ItemStyle Width="50px" />
13.             </asp:TemplateField>    
14.     
15.     在.cs中写如下事件：
16.     protected void gridview1_RowDataBound(object sender,GridViewRowEventArgs e)
17.     {
18.         if (e.Row.RowType == DataControlRowType.DataRow)
19.         {
20.             if (e.Row.FindControl("ddlManager") != null)
21.             {
22.                 DropDownList ddl = (DropDownList)e.Row.FindControl("ddlManager");
23.                 string strSql = "select NameVc from v_UserList";
24.                 ddl.DataSource = DataOperation.BindToControls(strSql);//将数据绑定到dropdownlist上
25.                 ddl.DataValueField = "NameVc";
26.                 ddl.DataTextField = "NameVc";
27.                 ddl.DataBind();
28.                 ddl.SelectedValue = DataBinder.Eval(e.Row.DataItem, "ManagerVc").ToString();//使点击编辑后dropdownlist的当前值为原始值
30.                 
31.             }
32.         }
33.     }