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TreeView & RadAjaxManager problem

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TreeView
This is a migrated thread and some comments may be shown as answers.
Laurentiu Stamat
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Laurentiu Stamat asked on 13 Dec 2010, 05:12 PM
Hello, I have a RadTreeView with TreeNodeExpandMode.ServerSide settings.
The treeview is in a RadSplitter. I want to use RadAjaxManager and RadAjaxLoadingPanel, so the treeview do not show postback when the nodes are loaded from server. However, when I use the RadAjaxManager and RadAjaxloadingPanel, the treeview completely dissapear until the new nodes are loaded. No ajax panel shows. Here is the source code for the page:

 

 

 

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPageTelerikFaraScriptManager.Master" AutoEventWireup="true" CodeBehind="FisiereleMele.aspx.cs" Inherits="TethysTest.Fisiere.FisiereleMele" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContinutCentru" runat="server">
  
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
    </telerik:RadScriptManager>
  
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" 
        DefaultLoadingPanelID="RadAjaxLoadingPanel1">
        <AjaxSettings>
            <telerik:AjaxSetting AjaxControlID="RadTreeViewFisiere">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="RadTreeViewFisiere" 
                        LoadingPanelID="RadAjaxLoadingPanel1"></telerik:AjaxUpdatedControl>
                      
                </UpdatedControls>
            </telerik:AjaxSetting>
              
        </AjaxSettings>
    </telerik:RadAjaxManager>
  
             <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1"  runat="server" 
        HorizontalAlign="Center"></telerik:RadAjaxLoadingPanel>
  
    <table style="width:100%;">
        <tr>
            <td>
                 </td>
        </tr>
        <tr>
            <td>
              
          
  
                <telerik:RadSplitter ID="RadSplitterFisiere" runat="server" Height="500" 
                    Width="800px" Skin="Windows7">
                    <telerik:RadPane ID="navigationPane" runat="server" Width="250">
                        <telerik:RadTreeView ID="RadTreeViewFisiere" Runat="server" 
                            AllowNodeEditing="True" DataFieldID="nivelID" DataFieldParentID="parinteID" 
                            DataTextField="nume" DataValueField="nivelID" 
                            oncontextmenuitemclick="RadTreeViewFisiere_ContextMenuItemClick" 
                            onnodecreated="RadTreeViewFisiere_NodeCreated" 
                            onnodedatabound="RadTreeViewFisiere_NodeDataBound" 
                            onnodeedit="RadTreeViewFisiere_NodeEdit" 
                            onnodeexpand="RadTreeViewFisiere_NodeExpand" Skin="Outlook">
                        </telerik:RadTreeView>
                    </telerik:RadPane>
        <telerik:RadSplitBar ID="RadSplitbar1" runat="server" CollapseMode="Forward"></telerik:RadSplitBar>
        <telerik:RadPane ID="contentPane" runat="server" Scrolling="none">
            <telerik:RadSplitter ID="RadSplitterContent" runat="server" 
                Orientation="Horizontal">
                <telerik:RadPane ID="topPaneContent" runat="server">
                      
                </telerik:RadPane>
                <telerik:RadSplitBar ID="RadSplitbar2" runat="server" CollapseMode="Forward"></telerik:RadSplitBar>
                <telerik:RadPane ID="bottomPaneContent" runat="server">
                      
                </telerik:RadPane>
            </telerik:RadSplitter>
        </telerik:RadPane>
    </telerik:RadSplitter>
  
                 
  
</td>
        </tr>
        <tr>
            <td>
                <asp:Label ID="InfoLabel" runat="server" CssClass="fontUserCtrl" EnableViewState="True"></asp:Label>
                </td>
        </tr>
    </table>
</asp:Content>

here is the C# source code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using TethysTestDAL;
using Telerik.Web.UI;
  
namespace TethysTest.Fisiere
{
    public partial class FisiereleMele : TethysTest.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
  
                //se verifica drepturile de securitate ale userului curent pe pagina
                Utils.TestRol(this, "CIRC");
  
                InfoLabel.Visible = false;
  
                if (Page.IsPostBack == false)
                {
                      
  
                    Utils.SetMouseOver(this, "butonLinkOver", "butonLinkOut");
  
                    ViewState["currentTreeNode"] = "";
                    LoadRootNodes(RadTreeViewFisiere, TreeNodeExpandMode.ServerSide);
  
                }
  
                
  
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
                //throw ex;
            }
  
        }
  
        public override void RefreshData()
        {
            try
            {
                ViewState["currentTreeNode"] = "";
                RadTreeViewFisiere.UnselectAllNodes();
                RadTreeViewFisiere.Nodes.Clear();
                LoadRootNodes(RadTreeViewFisiere, TreeNodeExpandMode.ServerSide);
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
            }
  
        }
  
  
        private void IncarcaTreeView()
        {
            TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
  
            DataSet ds = dal.Arbore_SelectArboreFisiere();
  
            RadTreeViewFisiere.DataSource = ds;
            RadTreeViewFisiere.DataBind();
  
  
        }
  
        private void IncarcaTreeViewRadacina()
        {
            TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
  
            DataSet ds = dal.Arbore_SelectArboreFisiereRadacina();
  
            RadTreeViewFisiere.DataSource = ds;
            RadTreeViewFisiere.DataBind();
  
  
        }
  
        private static void LoadRootNodes(RadTreeView treeView, TreeNodeExpandMode expandMode)
        {
            TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
  
            DataSet ds = dal.Arbore_SelectArboreFisiereRadacina();
  
            DataTable data = ds.Tables[0];
  
            foreach (DataRow row in data.Rows)
            {
                RadTreeNode node = new RadTreeNode();
                node.Attributes["radacina"] = row["radacina"].ToString();
                node.Text = row["nume"].ToString();
                node.Value = row["nivelID"].ToString();
                node.ToolTip = row["nume"].ToString();
                node.ImageUrl = row["caleImagine"].ToString();
                node.ExpandMode = expandMode;
                if (node.Attributes["radacina"] == "0")
                {
                    node.AllowEdit = true;
                }
                else
                {
                    node.AllowEdit = false;
                }
                treeView.Nodes.Add(node);
            }
        }
  
  
  
  
        private static DataTable IncarcaTreeViewFrunze(string parinteID)
        {
            TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
  
            DataSet ds = dal.Arbore_SelectArboreFisiereFrunze(parinteID);
  
            DataTable data = ds.Tables[0];
  
            return data;
  
        }
  
        protected void RadTreeViewFisiere_NodeDataBound(object sender, Telerik.Web.UI.RadTreeNodeEventArgs e)
        {
            //try
            //{
            //    Persoana pers = (Persoana)Session["persoana"];
            //    bool supervizor = pers.Supervisor;
            //    bool powerUser = pers.IsInRole("PWU");
  
            //    DataTable data = IncarcaMeniuContextual(e.Node.Value, pers.PersoanaID.ToString(), supervizor, powerUser);
  
            //    if (data.Rows.Count > 0)
            //    {
            //        e.Node.EnableContextMenu = true;
            //        RadTreeViewContextMenu target = new RadTreeViewContextMenu();
  
            //        foreach (DataRow row in data.Rows)
            //        {
            //            RadMenuItem item = new RadMenuItem();
  
            //            item.Text = row["textMeniu"].ToString();
            //            item.Value = row["valueMeniu"].ToString();
            //            item.ToolTip = row["toolTipMeniu"].ToString();
            //            item.ImageUrl = row["imageMeniu"].ToString();
  
            //            target.Items.Add(item);
            //        }
  
            //        e.Node.ContextMenuID = target.ID;
            //        RadTreeViewFisiere.ContextMenus.Add(target);
            //    }
            //    else
            //    {
            //        e.Node.EnableContextMenu = false;
            //    }
            //}
            //catch (Exception exx)
            //{
            //    Utils.ShowMessage(this, exx.Message, true, InfoLabel);
            //    //throw ex;
            //}
  
        }
  
         
  
        private void UpdateLoadingStatusPosition(TreeViewLoadingStatusPosition statusPosition)
        {
            RadTreeViewFisiere.LoadingStatusPosition = statusPosition;
        }
  
        private static void PopulateNodeOnDemand(RadTreeNode e, TreeNodeExpandMode expandMode)
        {
            e.Nodes.Clear();
  
            DataTable data = IncarcaTreeViewFrunze(e.Value);
            //DataTable data = IncarcaTreeViewFrunze(e.Node.Attributes["nivelID"]);
  
            foreach (DataRow row in data.Rows)
            {
                RadTreeNode node = new RadTreeNode();
                node.Attributes["radacina"] = row["radacina"].ToString();
                node.Text = row["nume"].ToString();
                node.Value = row["nivelID"].ToString();
                node.ToolTip = row["nume"].ToString();
                node.ImageUrl = row["caleImagine"].ToString();
                if (Convert.ToInt32(row["numarFrunze"]) > 0)
                {
                    node.ExpandMode = expandMode;
                }
  
                if (node.Attributes["radacina"] == "0")
                {
                    node.AllowEdit = true;
  
                }
                else
                {
                    node.AllowEdit = false;
                }
  
                e.Nodes.Add(node);
            }
  
              
  
            e.Expanded = true;
        }
  
       
  
  
  
        protected void RadTreeViewFisiere_NodeExpand(object sender, RadTreeNodeEventArgs e)
        {
            try
            {
                  
                PopulateNodeOnDemand(e.Node, TreeNodeExpandMode.ServerSide);
                  
                  
  
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
                //throw ex;
            }
        }
  
  
        private static DataTable IncarcaMeniuContextual(string nivelID, string utilizatorID, bool supervizor, bool powerUser)
        {
            TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
  
            DataSet ds = dal.MeniuContextual_SelectMeniuContextual(nivelID, utilizatorID, supervizor, powerUser);
  
            DataTable data = ds.Tables[0];
  
            return data;
  
        }
  
        protected void RadTreeViewFisiere_NodeCreated(object sender, RadTreeNodeEventArgs e)
        {
            try
            {
                  
                Persoana pers = (Persoana)Session["persoana"];
                bool supervizor = pers.Supervisor;
                bool powerUser = pers.IsInRole("PWU");
  
                 
  
                DataTable data = IncarcaMeniuContextual(e.Node.Value, pers.PersoanaID.ToString(), supervizor, powerUser);
  
                if (data.Rows.Count > 0)
                {
                      
                    RadTreeViewContextMenu target = new RadTreeViewContextMenu();
                    target.Skin = "Default";
                    string ID = Guid.NewGuid().ToString();
                    target.ID = ID;
  
                    foreach (DataRow row in data.Rows)
                    {
                        RadMenuItem item = new RadMenuItem();
  
                        item.Text = row["textMeniu"].ToString();
                        item.Value = row["valueMeniu"].ToString();
                        item.ToolTip = row["toolTipMeniu"].ToString();
                        item.ImageUrl = row["imageMeniu"].ToString();
  
                        target.Items.Add(item);
                    }
  
                    RadTreeViewFisiere.ContextMenus.Add(target);
                    e.Node.EnableContextMenu = true;
                    e.Node.ContextMenuID = target.ID;
               }
                else
                {
                    e.Node.EnableContextMenu = false;
                }
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
                //throw ex;
            }
        }
  
        protected void RadTreeViewFisiere_ContextMenuItemClick(object sender, RadTreeViewContextMenuEventArgs e)
        {
            try
            {
                TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
                Persoana pers = (Persoana)Session["persoana"];
                string userHostAddress = this.NumeCalculatorClient();
  
                RadTreeNode clickedNode = e.Node;
                ViewState["currentTreeNode"] = clickedNode.Value;
  
  
                switch (e.MenuItem.Value)
                {
                    case "addFolderDirector":
  
                        dal.Arbore_InsertDirector(clickedNode.Value, pers.PersoanaID.ToString(), pers.PersoanaPKID.ToString(), pers.Nume + ", " + pers.Compartiment, userHostAddress);
  
                        ViewState["currentTreeNode"] = clickedNode.Value;
                        clickedNode.Nodes.Clear();
                        PopulateNodeOnDemand(clickedNode, TreeNodeExpandMode.ServerSide);
  
  
                    break;
  
                }
  
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
                //throw ex;
            }
        }
  
        protected void RadTreeViewFisiere_NodeEdit(object sender, RadTreeNodeEditEventArgs e)
        {
            try
            {
                if (e.Node.Attributes["radacina"] == "1")
                {
                    return;
                }
  
                string nume = e.Text;
                e.Node.Text = nume;
  
                TethysTestDAL.Fisiere dal = new TethysTestDAL.Fisiere();
                Persoana pers = (Persoana)Session["persoana"];
                string userHostAddress = this.NumeCalculatorClient();
  
                RadTreeNode clickedNode = e.Node;
  
                dal.Arbore_UpdateDirector(e.Node.Value, pers.PersoanaID.ToString(), pers.PersoanaPKID.ToString(), pers.Nume + ", " + pers.Compartiment, userHostAddress, nume);
  
                ViewState["currentTreeNode"] = clickedNode.Value;
                clickedNode.Nodes.Clear();
                PopulateNodeOnDemand(clickedNode, TreeNodeExpandMode.ServerSide);
            }
            catch (Exception exx)
            {
                Utils.ShowMessage(this, exx.Message, true, InfoLabel);
                //throw ex;
            }
        }
  
  
  
      
  
  
  
    }
}

1 Answer, 1 is accepted

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Accepted
Yana
Telerik team
answered on 14 Dec 2010, 10:52 AM
Hi Laurentiu,

You just need to set Skin property of the ajax loading panel.

Regards,
Yana
the Telerik team
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TreeView
Asked by
Laurentiu Stamat
Top achievements
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Answers by
Yana
Telerik team
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