请问怎样对GridView模板列EditItem中的DropDownList进行数据绑定

[anison]

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{

if (e.Row.RowType == DataControlRowType.DataRow)
{
string sCgyNam = ((Label)e.Row.Cells[1].FindControl("lbCgyNam")).Text.Trim();
DropDownList drop = (DropDownList)e.Row.FindControl("dropCgyNam"); // 找不到dropCgyNam
Function.BindDropDownList(drop, "nam", "id", "类别");
//drop.Items.FindByText(sCgyNam).Selected = true;

}
}

[anison]

Function.BindDropDownList(drop, "nam", "id", "类别");
这个是自己写的一个绑定DropDownList的函数

----
关键是怎么获得EditItem中ID为dropCgyNam的DropDownList

[smile9961]

把你的.aspx中这个模版列的定义也贴出来，另外：
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string sCgyNam = ((Label)e.Row.Cells[1].FindControl("lbCgyNam")).Text.Trim();
DropDownList drop = (DropDownList)e.Row.FindControl("dropCgyNam"); // 找不到dropCgyNam

if(drop!=null)
{
Function.BindDropDownList(drop, "nam", "id", "类别");
}
}
}

[anison]

aspx:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
Width="337px" OnRowDataBound="GridView1_RowDataBound" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating">
<Columns>
<asp:BoundField DataField="id" HeaderText="车号" />
<asp:TemplateField HeaderText="类型">
<EditItemTemplate>
<asp:DropDownList ID="dropCgyNam" runat="server" Style="position: relative" Width="107px"> <<----------在这里
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lbCgyNam" runat="server" Text='<%# Bind("nam") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
</Columns>
</asp:GridView>

[anison]

好伤心啊 ~哪位高手帮忙解答一下吧？

[anison]

帮帮忙~~谢谢

[yuanzhihua520]

up

[amandag]

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if(e.Row.RowType == DataControlRowType.DataRow)
{
//保存当前行的au_id的值
string au_id = this.GridView1.DataKeys[e.Row.RowIndex]["au_id"].ToString();

//对DropDownList做数据绑定
DropDownList dropTemp = (DropDownList)e.Row.Cells[0].FindControl("dropTemp");

SqlConnection cn = new SqlConnection(@"server=.\SQLExpress;uid=sa;pwd=password;database=pubs");
string strSQL = "select au_id from authors";
SqlCommand cmd = new SqlCommand(strSQL, cn);
cn.Open();

dropTemp.DataSource = cmd.ExecuteReader();
dropTemp.DataTextField = "au_id";
dropTemp.DataBind();

//到DropDownList中根据au_id的值去找需要设置为选中状态的项目，将其设置为选中
ListItem item = dropTemp.Items.FindByText(au_id);
if(item != null)
{
item.Selected = true;
}
cn.Close();
}
}

[amandag]

你关键的问题在这里，没有指明单元格
DropDownList dropTemp = (DropDownList)e.Row.Cells[0].FindControl("dropTemp");

[anison]

TO:amandag(高歌)
//对DropDownList做数据绑定
DropDownList dropTemp = (DropDownList)e.Row.Cells[0].FindControl("dropTemp");

-------

这个也找不到EditItem里的DropDownList

[lowrain]

这几天被这个困扰了，绑定

[amandag]

你要学会看位置啊

你的第一个是 <asp:BoundField DataField="id" HeaderText="车号" />

所以现在就是
DropDownList dropTemp = (DropDownList)e.Row.Cells[1].FindControl("dropTemp");

[anison]

TO:amandag(高歌)
//对DropDownList做数据绑定
DropDownList dropTemp = (DropDownList)e.Row.Cells[0].FindControl("dropTemp");
-----
这个是你的

我的是：DropDownList drop = (DropDownList)e.Row.Cells[1].FindControl("dropCgyNam");
单步执行完这句后发现drop 为null

[anison]

问题是可以访问ItemTemplate中的drop
但是取不到EditTemplate中的drop

[DEC_RULA]

当然访问不到
应该是：
(DropDownList)GridView1.Rows[e.RowIndex].FindControl("drpCgyNam")

[DEC_RULA]

楼主，对不起，我看错事件了。

[nychanglingfeng]

可要细心呀！