GRIDVIEW:綁定、查找<EditTemplate>中DropDownList

前台：

<asp:TemplateField HeaderText="新上司">
                          <EditItemTemplate>
                              <asp:DropDownList ID="editN_PERSON_NO" runat="server" TabIndex="-1" CssClass="not-null" Width="200px" AutoPostBack="True" OnSelectedIndexChanged="editN_PERSON_NO_SelectedIndexChanged" >
                              </asp:DropDownList>
                              
                          </EditItemTemplate>                          
                          <ItemTemplate>
                            <asp:Label ID="itemN_PERSON_NO" runat="server" Text='<%# Bind("N_PERSON_NO") %>' TabIndex="-1"></asp:Label>
                          </ItemTemplate>
                          <ItemStyle Width="250px" CssClass="GVCellStyle" />
                          <HeaderStyle Width="250px" />

                      </asp:TemplateField>

 =====================================

绑定DDL控件:
    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowState == DataControlRowState.Edit || e.Row.RowState == (DataControlRowState.Alternate | DataControlRowState.Edit))
        {
            DropDownList ddl = (DropDownList)e.Row.FindControl("editN_PERSON_NO");
            if (ddl != null)
            {
                DataTable dt = pacc.GetDDLPerson120();
                WebUtil.FillDropDownList(ddl, dt, true);
            }
        }

    }

 ==============================

点"编辑"按钮后,给绑定的DDL控件赋值:

//刚上有在DDL标签内加上SelectValue=<%#EVAL("PERSON_NO") %>, 再重新绑定GRIDVIEW,我没用成功,可能方法不对.

  protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

    {      

        Label userId = (Label)this.GridView1.Rows[e.NewEditIndex].FindControl("userId");

        Label pno = (Label)this.GridView1.Rows[e.NewEditIndex].FindControl("itemN_PERSON_NO");
        DropDownList ddl = (DropDownList)this.GridView1.Rows[e.NewEditIndex].FindControl("editN_PERSON_NO");
        if(ddl != null && pno !=null)
        {
            ddl.SelectedValue = pno.Text;
        }

   }

 

//可以用下面事件来给当前行的别的控件从DDL中获取值

 

protected void editN_PERSON_NAME_SelectedIndexChanged(object sender, EventArgs e)
    {       
        Label lblPNO = (Label)this.GridView1.Rows[this.GridView1.EditIndex].FindControl("editPNO");//這是同行的其它列的控件
        DropDownList ddl = (DropDownList)sender;
        if (lblPNO != null || ddl != null)
        {
            lblPNO.Text = ddl.SelectedValue;
        }
    }