Tree view node selection from content page not updating master page control

[Sabitri]

Hi Team,

I am having a radtreeview in content page and a label in master page.
On selection of tree node in content page I want to update the label text. 

Below is the sample code I am using, but some how the update is not happening.

content page aspx is having: rad tree with RadAjaxManagerProxy.
<telerik:RadTreeView ID="xyz" runat="server" OnClientContextMenuItemClicked="xyz"
                        OnClientContextMenuShowing="xyz" OnClientDoubleClick="xyz"
                        OnClientNodeClicked="xyz" OnClientLoad="AddInfoToMenu" Height="440px">
                        <ContextMenus>
                            <telerik:RadTreeViewContextMenu ID="xyz" runat="server">
                            </telerik:RadTreeViewContextMenu>
                        </ContextMenus>
                    </telerik:RadTreeView>

content page cs contains:
 RadAjaxManager manager = RadAjaxManager.GetCurrent(Page);
        manager.ClientEvents.OnRequestStart = "RequestInitiated";
        manager.ClientEvents.OnResponseEnd = "RequestEnded";
        manager.AjaxRequest += new RadAjaxControl.AjaxRequestDelegate(manager_AjaxRequest);

master page update is happening if I am using a button click. but the node click of handled through ajax request is not updating label control.


Any help appreciated.

thanks
Sabitri

[Shinu]

Hi Sabitri,

Please have a look into the sample code snippet which works fine at my end.

Master Page ASPX:

<asp:Label ID="Label1" runat="server">
</asp:Label>
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
</telerik:RadAjaxManager>

Content Page ASPX:

<telerik:RadTreeView ID="RadTreeView1" runat="server" OnNodeClick="RadTreeView1_NodeClick">
    <Nodes>
        <telerik:RadTreeNode Text="Node1">
            <Nodes>
                <telerik:RadTreeNode Text="Node1.1">
                </telerik:RadTreeNode>
                <telerik:RadTreeNode Text="Node1.2">
                </telerik:RadTreeNode>
            </Nodes>
        </telerik:RadTreeNode>
    </Nodes>
</telerik:RadTreeView>
<telerik:RadAjaxManagerProxy ID="RadAjaxMangerProxy1" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="RadTreeView1">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="Label1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManagerProxy>

Content Page C#:

protected void RadTreeView1_NodeClick(object sender, Telerik.Web.UI.RadTreeNodeEventArgs e)
{
    Label label1 = (Label)this.Master.FindControl("Label1");
    label1.Text = e.Node.Text;
}

Let me know if you have any concern.
Thanks,
Shinu.

[Sabitri]

Thanks for the reply.

I am using OnClientContextMenuItemClicked as the event to trigger a set of updates in db. OnClientContextMenuItemClicked is using ajax call and through manager_AjaxRequest(object sender, Telerik.Web.UI.AjaxRequestEventArgs e) updating the db. Can we somehow put the label text update after the changes in manager_AjaxRequest call. I tried to update label after that..but it is not working.

any pointer..what I am missing there.

[Shinu]

Hi Sabitri,

Please do the following modifications in the above posted code which works fine at my end.

Master Page ASPX:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest">
</telerik:RadAjaxManager>

Master Page C#:

protected void RadAjaxManager1_AjaxRequest(object sender, Telerik.Web.UI.AjaxRequestEventArgs e)
{
    //your code
}

JavaScript:

<script type="text/javascript">
    function OnClientContextMenuItemClicked(sender, args) {
        var ajax = $find("<%=RadAjaxManager1.ClientID %>").ajaxRequest();
        var label = document.getElementById("Label1");
        label.textContent = args.get_node().get_text();
    }
</script>

Thanks,
Shinu.

[Sabitri]

Thanks Shinu.

Little confusion here I think, the Label1 is in master page and ajax request is triggered through content page.
So Label1 is not be accessible in document.getelementbyid from OnClientContextMenuItemClicked(sender, args) of content page aspx.

I am able to get master page Label1 control from contect page ajax function, but it is not reflecting in masterpage unless I do a refresh.
But it is updating the Label1 text if I am updating it in a button click control from content page.

protected void manager_AjaxRequest(object sender, Telerik.Web.UI.AjaxRequestEventArgs e)
{
var lbltest= (System.Web.UI.WebControls.Literal)Master.FindControl("Label1");
                    lbtest.Text = "test1";
}

Thanks
Sabitri Mohanty

[Shinu]

Hi Sabitri,

Please have a look into this sample project which works fine at my end. Let me know if you have any concern.

Thanks,
Shinu.