InitialPageLoad

[Kjell]

Have problem to load my TreeView using "Public Sub buildTree()" and InitialPageLoad...
What can I possibly do wrong ....

    <telerik:RadAjaxManager ID="RadAjaxManager1" OnAjaxRequest="RadAjaxManager1_AjaxRequest" runat="server">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="RadAjaxManager1">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="PanelLoad" />
                </UpdatedControls>
            </telerik:AjaxSetting>
        </AjaxSettings>
        <ClientEvents OnRequestStart="RequestStart" OnResponseEnd="ResponseEnd" />
    </telerik:RadAjaxManager>

    <telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
        <script type="text/javascript">
            function RequestStart(sender, eventArgs) {
                $get("<%=modalDiv.ClientID %>").style.display = "block";
            }

            function ResponseEnd(sender, eventArgs) {
                $get("<%=modalDiv.ClientID %>").style.display = "none";
            }

            function pageLoad(sender, eventArgs) {
                if (!eventArgs.get_isPartialLoad()) {
                    $find("<%= RadAjaxManager1.ClientID %>").ajaxRequest("InitialPageLoad");
                }
            }
        </script>
    </telerik:RadCodeBlock>

<asp:Panel ID="PanelLoad" Visible="False" Style="padding-left: 6px; padding-top:6px;" runat="server">
My TreeView databind using the "Public Sub buildTree()"
</asp:Panel>

    <div id="modalDiv" style="position: absolute; top: 40px; left: 0px; height: 3000px; width: 100%; z-index: 100; background: gray; display: none; opacity: 0.3; filter: alpha(opacity=100);" runat="server" />

Protected Sub RadAjaxManager1_AjaxRequest(ByVal sender As Object, ByVal e As Telerik.Web.UI.AjaxRequestEventArgs)

    If e.Argument = "InitialPageLoad" Then

        'System.Threading.Thread.Sleep(3000)

        PanelLoad.Visible = True

    End If

End Sub

 

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    If Not Page.IsPostBack Then

        buildTree()

    End If

End Sub

 

'....................................

 

Public Sub buildTree()

 

    Dim MyConnection As New SqlConnection(System.Configuration..................

    Dim MyDataAdapter As New SqlDataAdapter("select NodeId, ParentNodeId................

 

    Dim DS As New DataSet()

    MyDataAdapter.Fill(DS)

 

    DS.Relations.Add("NodeRelation",...........

[Marin]

Hi,

 You should make sure that the buildTree() function is executed when you perform an ajax request. You may need to revise the current condition in the Page_Load event (If Not Page.IsPostBack Then
) which will be false in the case of an ajax request and the procedure will not be executed at all.

Kind regards,
Marin
the Telerik team