RadPanelItem parent tree

[Phil DeVeau]

I'm using some user controls in a web app with some custom security designed around different product offerings.  Each product offering is defined as a user control which inherits from a custom <MyUserControl> : UserControlBase : UserControl.  As each user control is loaded I'm calling a recursive method to check the parent tree to find the PanelBarItem and disable it if the user control is disabled.

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

/// <summary>
/// Summary description for UserControlBase
/// </summary>
public class UserControlBase : UserControl
{
    public UserControlBase() : base()
    {
        Log("UserBase Constructor");
        base.Load += new EventHandler(UserControlBase_Load);
    }

    void UserControlBase_Load(object sender, EventArgs e)
    {
        Log("UserBase Load");
        bool renderable = false; // || false;
        SetParentPanel(Parent, renderable);
    }

    public void SetParentPanel(Control parent, bool enabled)
    {
        string key = "TestEnabled";
        Log(enabled.ToString());

        if (parent == null)
            return;

        Log(parent.GetType().ToString());

        if (parent is Telerik.Web.UI.RadPanelItem)
        {
            Telerik.Web.UI.RadPanelItem panel = parent as Telerik.Web.UI.RadPanelItem;
            if (string.IsNullOrEmpty(panel.Attributes[key]))
                panel.Attributes.Add(key, enabled.ToString());

            if (enabled)
                panel.Attributes[key] = "true";

            if (Convert.ToBoolean(panel.Attributes[key]))
            {
                Log("Enabling");
                panel.Enabled = true;
                return;
            }
            else
            {
                Log("Disabling");
                panel.Enabled = false;
                return;
            }
        }

        SetParentPanel(parent.Parent, enabled);
    }

    public static void Log(string log)
    {
        const int LOGSIZE = 150;
        const int KBYTESIZE = 1024;
        const string FILELOC = @"c:\logfiles\testlog.log";
        using (System.IO.FileStream fs = new System.IO.FileStream(FILELOC, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite))
        {
            System.IO.StreamReader reader = new System.IO.StreamReader(fs);
            log += "\n" + reader.ReadToEnd();
            int max = LOGSIZE * KBYTESIZE;
            byte[] bytes = Encoding.UTF8.GetBytes(log);
            if (bytes.Length < max)
            {
                fs.SetLength(0);
                fs.Write(bytes, 0, bytes.Length);
            }
            else
            {
                fs.SetLength(0);
                fs.Write(bytes, 0, max);
            }
            fs.Flush();
            fs.Close();
        }
    }
}

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
    CodeFile="Default.aspx.cs" Inherits="_Default" Title="Untitled Page" %>
<%@ Register Src="~/WebControl1.ascx" TagName="TestControl" TagPrefix="my" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <telerik:RadPanelBar ID="RadPanelBar1" runat="server" Skin="Default2006" Width="100%">
        <Items>
            <telerik:RadPanelItem runat="server" Text="Control1">
                <Items>
                    <telerik:RadPanelItem>
                        <ItemTemplate>
                            <my:TestControl runat="server" ID="TestControl1" />
                        </ItemTemplate>
                    </telerik:RadPanelItem>
                </Items>
            </telerik:RadPanelItem>
        </Items>
        <CollapseAnimation Duration="100" Type="None" />
        <ExpandAnimation Duration="100" Type="None" />
    </telerik:RadPanelBar>
</asp:Content>

So far I haven't gotten this to work as defined in the above sample.  Any ideas on how to traverse up and get the telerik RadPanelItem?

[Phil DeVeau]

Figured it out.

public void SetParentPanel(Control parent, bool enabled)
    {
        string key = "ProductPanelEnabled";
        if (parent == null)
            return;

        if (parent is Telerik.Web.UI.RadPanelItem)
        {
            using (Telerik.Web.UI.RadPanelItem panel = parent as Telerik.Web.UI.RadPanelItem)
            {
                if (!string.IsNullOrEmpty(panel.Text))
                {

                    if (string.IsNullOrEmpty(panel.Attributes[key]))
                        panel.Attributes.Add(key, enabled.ToString());

                    if (enabled)
                        panel.Attributes[key] = "true";

                    if (Convert.ToBoolean(panel.Attributes[key]))
                    {
                        panel.Enabled = true;
                        return;
                    }
                    else
                    {
                        panel.Enabled = false;
                        return;
                    }
                }
            }
        }

        SetParentPanel(parent.Parent, enabled);
    }