Dynamic Tabs, PageViews, Contents And UserControls

[Virgil Rodriguez]

Hello Telerik,

I have this in my .ASPX page:

<div id="divTabs" runat="server">
    <telerik:RadTabStrip ID="rtsArticles" runat="server" SelectedIndex="0" MultiPageID="rmpArticles" Skin="Default" Width="100%">
      </telerik:RadTabStrip>
      <telerik:RadMultiPage ID="rmpArticles" runat="server" SelectedIndex="0" Height="100%" Width="100%">
      </telerik:RadMultiPage>
</div>
<div id="divGroups" runat="server">
    <asp:Panel ID="pnlGroups" runat="server">
        <asp:Repeater ID="rptGroups" runat="server" EnableTheming="True" OnItemDataBound="GroupRepeater_ItemDataBound">
            <ItemTemplate>
                    <div id="divDivGroups" runat="server" style="border-bottom:1px dashed silver;">
                     <asp:Label ID="hlGroups" runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "group_text") %>'></asp:Label>
                    </div>
            </ItemTemplate>
        </asp:Repeater>
    </asp:Panel>
</div>

I am trying to create dynamic Tabs in a single Tabstrip that points to dynamic PageViews in a single MultiPage with the dynamic PageViews pointing to dynamic Contents within dynamic UserControls.

I have this in my code behind:

Protected Sub GroupRepeater_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs)
Dim item As RepeaterItem
  item = e.Item
  Dim userCtrl As HtmlControl = item.FindControl("divDivGroups")
  If item.ItemType = ListItemType.Item Or item.ItemType = ListItemType.AlternatingItem Then
        Dim strGroupNumber As String = item.DataItem("group_id").ToString
        Dim tab As New RadTab
        Dim rtsArticles As RadTabStrip
        Dim rpageView As New RadPageView
        Dim rmpArticles As RadMultiPage
        tab.Text = strGroupNumber
        tab.PageViewID = "rpv" & strGroupNumber
        rtsArticles = item.Parent.Parent.Parent.Parent.FindControl("divTabs").FindControl("rtsArticles")
        rtsArticles.Tabs.Add(tab)
        rpageView.ID = "rpv" & strGroupNumber
        userCtrl.ID = "divUser" & strGroupNumber
        rmpArticles = item.Parent.Parent.Parent.Parent.FindControl("divTabs").FindControl("rmpArticles")
        rpageView.Controls.Add(userCtrl)
        rmpArticles.PageViews.Add(rpageView)
    End If
End Sub

I can't seem to make it work.

Any ideas, suggestions, feedback or sample application would be much appreciated.

Thanks in advance,

Virgil Rodriguez

[Yana]

Hello Virgil,

Please check our example here which demonstrates the needed approach.

Greetings,
Yana
the Telerik team

[Virgil Rodriguez]

Hi Yana,

Thanks for the reply. Unfortunately, the example does not fit my requirements.

The example has fixed and ready-to-go files (Customer.ascx, Product.ascx  and Order.ascx ).

In my case, the page view content "divDivGroups" is still to be dynamically built when "GroupRepeater_ItemDataBound" executes. And while these are being built, I am also building my RadMultiPage and my RadTabStrip.

My main problem is, I am encountering the error: "Multiple controls with the same ID ... were found. FindControl requires that controls have unique IDs".

How do I get around this?

Thanks,
Virgil

[Yana]

Hi Virgil,

Which version of the controls exactly you're using? We had a similar issue in one of the oldest releases.

All the best,
Yana
the Telerik team

[Virgil Rodriguez]

Hi Yana,

The version I'm using is Version=2008.2.826.20.

But I was able to fix the problem. It had something to do with creating unique IDs, so I just had a counter that would create a unique number for each element of my repeater.

Thanks for your time.

Regards,
Virgil