OnAjaxUpdate Not working Tooltipmanager , ListView

[Nattapong]

Hi, 

I'm use tooltipmanager in RadListView follow by demos tooltip load on demand, But OnAjaxUpdate not working when mouseover item in radlistview 

Follow,

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="ListShowAccreditation">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="ListShowAccreditation" LoadingPanelID="RadAjaxLoadingPanel1">
                </telerik:AjaxUpdatedControl>
                <telerik:AjaxUpdatedControl ControlID="RadToolTipManager1"></telerik:AjaxUpdatedControl>
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server">
</telerik:RadAjaxLoadingPanel>
<telerik:RadToolTipManager runat="server" ID="RadToolTipManager1" Position="Center"
    RelativeTo="Element" Width="400px" Height="200px" Animation="Resize" HideEvent="LeaveTargetAndToolTip"
    Skin="Default" OnAjaxUpdate="OnAjaxUpdate" OnClientHide="OnClientHide" RenderInPageRoot="true"
    AnimationDuration="200">
</telerik:RadToolTipManager>
<asp:Label ID="Label1" runat="server" />
<telerik:RadListView ID="RadListView1" ItemPlaceholderID="PlaceHolder_ListShowAccredit"
    runat="server" OnSelectedIndexChanged="ListBox_SelectedIndexChanged" DataValueField="AccreditationID"
    AutoPostBack="true">
    <LayoutTemplate>
        <asp:PlaceHolder ID="PlaceHolder_ListShowAccredit" runat="server" />
    </LayoutTemplate>
    <ItemTemplate>
        <asp:Label ID="lblAccreditID" runat="server" Text='<%# Eval("AccreditationID") %>'
            Visible="false" />
        <a>
            <asp:Label ID="lblAccredit" runat="server" Text='<%# Eval("Name") %>' ForeColor="#0083BA"
                Visible="true" />
            <asp:Label ID="lblComma" Text=", " ForeColor="#0083BA" runat="server" /></a>
    </ItemTemplate>
</telerik:RadListView>

In codebehind

private void UpdateToolTip(string elementID, UpdatePanel panel)
       {
           Control ctrl = Page.LoadControl("AccreditationPopup.ascx");
           panel.ContentTemplateContainer.Controls.Add(ctrl);
           UCAccreditationPopup details = (UCAccreditationPopup)ctrl;
           details.ID = elementID;
       }

       protected void OnAjaxUpdate(object sender, ToolTipUpdateEventArgs args)
       {
           this.UpdateToolTip(args.Value, args.UpdatePanel);
       }

       protected void ListBox_SelectedIndexChanged(object sender, EventArgs e)
       {
           this.RadToolTipManager1.TargetControls.Clear();
           ListShowAccreditation.DataBind();
       }

I'm newbie to use telerik. 

[Marin Bratanov]

Hello,

You need to add targets for the tooltip manager in order to have tooltips with load on demand on concrete elements. A similar example can be found in this demo: http://demos.telerik.com/aspnet-ajax/tooltip/examples/targetcontrolsandajax/defaultcs.aspx?product=tooltip. I am also attaching here a small sample that shows the logic with a listview control.


Regards,
Marin Bratanov
Telerik

[Nattapong]

Thank you,  

I was wrong to  e.Item.FinControl("");  

I can do it

Control target = e.Item.FindControl("lblAccredit");
            RadToolTipManager1.TargetControls.Add(target.ClientID, (e.Item as RadListViewDataItem).DataItemIndex.ToString(), true);