how to find repeater inside another repeater - asp.net

Question

I want to find repeater inside the another repeater. But i m not able to find. My code is
<asp:Repeater ID="rep_test" runat="server">
<ItemTemplate>
<div id='h<%# DataBinder.Eval(Container, "ItemIndex") %>' class="header" onclick='ToggleDisplay(<%# DataBinder.Eval(Container, "ItemIndex") %>);'>
<%#DataBinder.Eval(Container.DataItem, "ID")%>
</div>
<div id='d<%# DataBinder.Eval(Container, "ItemIndex") %>' class="details">
<asp:Repeater ID="rep_hello" runat="server">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem, "batchid")%><br />
<%#DataBinder.Eval(Container.DataItem, "ts")%><br />
</ItemTemplate>
</asp:Repeater>
<%-- <%#DataBinder.Eval(Container.DataItem, "batchid")%><br />
<%#DataBinder.Eval(Container.DataItem, "ts")%><br />--%>
</div>
</ItemTemplate>
</asp:Repeater>

Answer 1

If you put a repeater inside an item template of another repeater that means that every item of the main repeater (rep_test) will have a repeater inside it (rep_hello). So you actually need to find the repeater inside a repeaterItem. You can iterate trough all the nested repeaters like this:
foreach (RepeaterItem item in rep_test)
Repeater rptr = (Repeater)item.FindControl("rep_hello");

Answer 2

Example:
In ItemDataBound event handler:
protected void rep_test_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
(e.Item.FindControl("rep_hello") as Repeater).DataSource = YourOtherDataSource;
}
}

Answer 3

You can try using .FindControl(). In VB, it would be something like
Dim rpt as Repeater = rep_test.FindControl("rep_hello")

Answer 4

Usually when I see this kind of thing, you want to perform some event on all of the inner repeaters. What I usually do is handle this kind of thing inside the ItemDataBound event.
Add an OnItemDataBound attribute to your Repeater.
<asp:Repeater ID="rep_test" runat="server"
OnItemDataBound="rep_test_ItemDataBound">
Then in the back end, add a handler, with a FindControl call.
protected void rptBasket_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item ||
e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater innerRepeater = (Repeater)e.Item.FindControl("rep_hello");
// Now your have your repeater...do what you want with it.
}
}