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Gabriel
804
Maybe Stupid, but I'm tired!!
posted

Why this method is never called when I clicked on a node of my ultraWebTree1

protected void UltraWebTree1_NodeSelectionChanged(object sender, WebTreeNodeEventArgs e)
{
      e.Node........;
}

 

I know it is easy, but I'm lost thanks you

 

Gabriel Deschênes

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  • 28407
    posted

    HI,

     There is a WebTree Property called Selectable - If this is set to false, then no nodes can be selected and the NodeSelectionChanged event will not fire.

    Here is a help link:

    http://help.infragistics.com/Help/NetAdvantage/NET/2008.3/CLR2.0/html/Infragistics2.WebUI.UltraWebNavigator.v8.3~Infragistics.WebUI.UltraWebNavigator.UltraWebTree~Selectable.html

     Another possibility would be if you are using Manual LoadOnDemand.

     Here is a sample program i created  that shows the NodeSelectionchanged event will fire if it is properly wired up.

     Here is my code behind:

    using System;
    using System.Configuration;
    using System.Data;
    using System.Linq;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.HtmlControls;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Xml.Linq;

    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        protected void UltraWebTree1_NodeClicked(object sender, Infragistics.WebUI.UltraWebNavigator.WebTreeNodeEventArgs e)
        {
            Label1.Text = "clicked " + e.Node.Text;
        }
        protected void UltraWebTree1_NodeSelectionChanged(object sender, Infragistics.WebUI.UltraWebNavigator.WebTreeNodeEventArgs e)
        {
            Label2.Text = "selected " + e.Node.Text;
        }
    }

     

    Here is the Aspx:

    <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

    <%@ Register assembly="Infragistics2.WebUI.UltraWebNavigator.v8.2, Version=8.2.20082.2110, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" namespace="Infragistics.WebUI.UltraWebNavigator" tagprefix="ignav" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title>Untitled Page</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
       
            <ignav:UltraWebTree ID="UltraWebTree1" runat="server" DefaultImage=""
                HiliteClass="" HoverClass="" Indentation="20"
                onnodeclicked="UltraWebTree1_NodeClicked"
                onnodeselectionchanged="UltraWebTree1_NodeSelectionChanged">
                <Levels>
                    <ignav:Level Index="0" />
                </Levels>
                <Nodes>
                    <ignav:Node Text="Root Node">
                        <Nodes>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                        </Nodes>
                    </ignav:Node>
                    <ignav:Node Text="Root Node">
                        <Nodes>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                            <ignav:Node Text="Child Node">
                            </ignav:Node>
                        </Nodes>
                    </ignav:Node>
                </Nodes>
            </ignav:UltraWebTree>
       
        </div>
        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
        <asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
        </form>
    </body>
    </html>

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