我有我回发一个DetailsView - 而那里面是一个用户控件。我遇到一些困难，找到它的回传数据。

I have a DetailsView that I'm posting back - and inside of that is a UserControl. I'm having some difficulty located it in the postback data.

作为一个例子：

<asp:DetailsView ID="dvDetailsView" runat="Server" AutoGenerateRows="false">
<Fields>
  <asp:TemplateField>
    <ItemTemplate>
      Some text here
    </ItemTemplate>
    <EditItemTemplate>
      <uc:UserControl ID="ucUserControl" runat="server" />
    </EditItemTemplate>
    <InsertItemTemplate>
      <uc:UserControl ID="ucUserControl" runat="server" />
    </InsertItemTemplate>
  </asp:TemplateField>
</Fields>
</asp:DetailsView>

当我回传，我会认为我会做这样的事情：

When I postback, I would assume I would do something like this:

MyUserControlType ucUserControl = dvDetailsView.FindControl("ucUserControl") as MyUserControlType;

不过这个觉得没有什么。事实上，我甚至无法找到这个孩子在快速监视走来走去......

But this finds nothing. In fact, I can't even find this baby by walking around in QuickWatch...

什么我需要做的，找到这个东西？

What do I need to do to find this thing??

编辑：原来，我的用户ID已被改变 - 但为什么呢？我做对的插入和编辑模板，这两个相同的ID，但评论说出来没有什么区别。

It turns out my usercontrol id was being changed - but why? I do have the same ID on both the insert and edit templates, but commenting that out made no difference.

推荐答案

事实证明，用户控件的名称已更改 - 我的用户，标记为ucUserControl有它的名字改成一个通用的名字 - ctl01。

As it turns out, the user control name was changed - my usercontrol, labelled as "ucUserControl" had it's name changed to a generic name - 'ctl01'.

那么，做了 dvSituation.Rows [0] .Cells [0] .FindControl（ctl01）找到了控制。

So, doing advSituation.Rows[0].Cells[0].FindControl("ctl01") found the control.

要找到这个ID，我只是来看看HTML元素被渲染，并从ID，如检查父 ctl00_MainContent_dvDetailsView_ctl01_lblLabel ，其中lblLabel出现在ucUserControl。

To find this ID, I just had a look at the HTML element being rendered, and checked the parent from the id, e.g. 'ctl00_MainContent_dvDetailsView_ctl01_lblLabel', where lblLabel appeared on ucUserControl.

的行列是字段的数量的0的索引，并将细胞索引将为1，如果你有一个HeaderTemplate中指定。

The rows column is a 0 based index of the number of fields, and the cells index will be 1 if you have a headertemplate specified.

修改：OMG！有人（真不是我的，我发誓）所藏的ID属性上的控制类！

EDIT: OMG! Someone (it really wasn't me, I swear) had hidden the ID property on the control class!

public partial class UserControl : BaseControl
{
  public int Id;
}

这意味着，当被ASP.Net产生的ID，它不能，刚分配的通用标识（'ctl01'在这种情况下）到控制，而不是实际的名称。

This meant that when ASP.Net was generating the id, it couldn't, and just assigned a generic Id ('ctl01' in this case) to the control, rather than the actual name.

哇。