RadAjax not working with Repeater or Datalist

[Matt]

Hi,

I have a simple page that has a Literal, a Repeater/Datalist and a DropDownList.  When there are no items in the Repeater the Literal is shown.  When an Item from the DropDownList is selected the Repeater is updated and the Literal is turned off.

This scenario is a much simplified version of what am I trying to achieve, designed as proof of the error.  The page works fine with a full postback or when using a regular AJAX UpdatePanel, but when I try to use the RadAjax Manager, the Literal updates as expected, but the Repeater does not (I have tried replacing the Repeater with a Datalist and get the same results). 

Here is some sample code...

    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="DropDownList">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="Literal" />
                    <telerik:AjaxUpdatedControl ControlID="Repeater " />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
    </telerik:RadAjaxManager>

    <div>
        <ul>
            <asp:Literal id="Literal" runat="server">This list is empty.</asp:Literal>
            <asp:Repeater ID="Repeater" runat="server">
                <ItemTemplate>
                    <li>
                        <%#Container.DataItem("Item")%>
                    </li>
                </ItemTemplate>
            </asp:Repeater>
        </ul>
        <br />
        <div>
            <asp:DropDownList ID="DropDownList" runat="server" AutoPostBack="true">
                <asp:ListItem Text="Item One" Value="1" />
                <asp:ListItem Text="Item Two" Value="2" />
                <asp:ListItem Text="Item Three" Value="3" />
                <asp:ListItem Text="Item Four" Value="4" />
                <asp:ListItem Text="Item Five" Value="5" />
            </asp:DropDownList>
        </div>
    </div>

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not IsPostBack Then
            LoadList()
        End If
    End Sub

    Sub LoadList()
        Repeater.DataSource = "MyDataSource"
        Repeater.DataBind()
        If Repeater.Items.Count > 0 Then
            Repeater.Visible = True
            Literal.Visible = False
        Else
            Repeater.Visible = False
            Literal.Visible = True
        End If
    End Sub

    Protected Sub DropDownList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList.SelectedIndexChanged
        'Add the Item here
        LoadList()
    End Sub

If I do this, it works...

    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <div>
                <ul>
                    <li id="Literal" runat="server">This list is empty.</li>
                    <asp:Repeater ID="Repeater" runat="server">
                        <ItemTemplate>
                            <li>
                                <%#Container.DataItem("BusinessName")%>
                            </li>
                        </ItemTemplate>
                    </asp:Repeater>
                </ul>
                <br />
                <div>
                    <asp:DropDownList ID="DropDownList" runat="server" AutoPostBack="true">
                        <asp:ListItem Text="Item One" Value="17" />
                        <asp:ListItem Text="Item Two" Value="19" />
                        <asp:ListItem Text="Item Three" Value="20" />
                        <asp:ListItem Text="Item Four" Value="21" />
                        <asp:ListItem Text="Item Five" Value="22" />
                    </asp:DropDownList>
                </div>
            </div>
        </ContentTemplate>
    </asp:UpdatePanel>

Any Ideas?

[Shinu]

Hello Tony,

I tried the AjaxSetting as shown below and it is working fine for me. Give a try with the following code and see whether it working as expected.

ASPX:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="DropDownList">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="Repeater" />
                    <telerik:AjaxUpdatedControl ControlID="Literal" />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
</telerik:RadAjaxManager>

Thanks,
Shinu.

[Matt]

Hi Shinu,

Thanks for the response.

I have no idea what I have done, but by recreating the RadAjax Manager it has started working!?  Maybe something got itself in a pickle somewhere?

Sorry for the bother and thanks for the help.