带有HiddenField的中继器

Question

我在标有"AdminGetAllRPT"的Repeater中有以下HiddenField:

 <asp:Repeater ID="AdminGetAllRPT" runat="server" OnLoad="AdminGetAllRPT_Load">
    <HeaderTemplate>
        <table id="AdminGetAllTBL">
            <tr>
                <td></td>
                <td>Username</td>
                <td>Email Address</td>
                <td>First Name</td>
                <td>Last Name</td>
                <td>Active?</td>
            </tr>
    </HeaderTemplate>
    <ItemTemplate>
       <tr>
           <td>
               <asp:LinkButton ID="AdminEditLnk" runat="server" OnClick="AdminEdit_OnClick">Edit
               <asp:HiddenField ID="editAdminEmail" runat="server" Value='<%# Eval("emailAddress") %>' />
               </asp:LinkButton>
           </td>
           <td><%# Eval("userName") %></td>
           <td><%# Eval("emailAddress") %></td>
           <td><%# Eval("firstName") %></td>
           <td><%# Eval("lastName") %></td>
           <td><%# Eval("isActive") %></td>
       </tr>
    </ItemTemplate>
    <AlternatingItemTemplate>
        <tr class="alternateTemplate">
           <td>
               <asp:LinkButton ID="AdminEditLnk" runat="server" OnClick="AdminEdit_OnClick">Edit
               <asp:HiddenField ID="editAdminEmail" runat="server" Value='<%# Eval("emailAddress") %>' />
               </asp:LinkButton>
           </td>
           <td><%# Eval("userName") %></td>
           <td><%# Eval("emailAddress") %></td>
           <td><%# Eval("firstName") %></td>
           <td><%# Eval("lastName") %></td>
           <td><%# Eval("isActive") %></td>
       </tr>
    </AlternatingItemTemplate>
    <FooterTemplate>
            <tr>
                <td colspan="2"><a href="#">Add Administrator</a></td>
            </tr>
        </table>
    </FooterTemplate>
</asp:Repeater>

我有一个触发此代码的链接按钮:

protected void AdminEdit_OnClick(object sender, EventArgs e)
{
    HiddenField hf = (HiddenField)AdminGetAllRPT.FindControl("editAdminEmail");

但是hf即将出现.我究竟做错了什么？

Answer 1

更改AdminGetAllRPT.FindControl ...

至

e.Item.FindControl ...

编辑:感谢您对正确答案的投票.

但是,是的e.Item.FindControl是你想要的,因为你要做的不是按钮上的事件,它是转发器的ItemCommand上的事件.

<asp:Repeater OnItemCommand="MyButtonCommandEvent" ID="AdminGetAllRPT" runat="server" OnLoad="AdminGetAllRPT_Load">

然后在代码隐藏中,您可以设置事件

void MyButtonCommandEvent(Object src, RepeaterCommandEventArgs e) {  
   //My event that is raised for each button pressed in the RepeaterItem
   var poo = e.Item.FindControl("myhiddenfieldid") as HiddenField;
}

完成...

要迭代所有RepeaterItems,您可以在转发器外部有一个按钮(或者可能在页脚或其他内容中,这不是转发器ItemCommand)

foreach(var item in AdminGetAllRPT.Items)
{
    if (item.ItemType == RepeaterItemType.Item || item.ItemType == RepeaterItemType.AlternatingItem)
    {
        var hiddenField = item.FindControl("hiddenFieldid") as HiddenField;
        //Do Stuff
    }
}