Telerik rad editor is not working in the infragristic tab control

Question

hi ,

i have one Rad Editor inside the UltraWeb Tab(Infragistics)

 Independently it is working fine but if i place it inside the tab control it losses it design following is the code present i commented the infragristic tab code:

<%@ Page Title="" Language="VB" MasterPageFile="~/Admin/Admin.master" AutoEventWireup="false"
    CodeFile="infrTel_test.aspx.vb" Inherits="Admin_infrTel_test" %>

<%@ Register Assembly="Infragistics35.WebUI.UltraWebTab.v10.2, Version=10.2.20102.1011, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"
    Namespace="Infragistics.WebUI.UltraWebTab" TagPrefix="igtab" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="CP" runat="Server">
   <%-- <igtab:UltraWebTab ID="tabcProduct" ImageDirectory="" runat="server" BorderWidth="2px"
        ThreeDEffect="False" BorderStyle="Solid" BorderColor="#949C9C" Width="100%" BarHeight="0"
        SelectedTab="1">
        <DefaultTabStyle Font-Size="8pt" Font-Names="Arial" ForeColor="Black">
            <Padding Top="2px"></Padding>
        </DefaultTabStyle>
        <RoundedImage LeftSideWidth="7" RightSideWidth="6" ShiftOfImages="2" SelectedImage="~/App_Themes/Admin/infragistics tab images/ig_tab_winXPs1.gif"
            NormalImage="~/App_Themes/Admin/infragistics tab images/ig_tab_winXPs3.gif" HoverImage="~/App_Themes/Admin/infragistics tab images/ig_tab_winXPs2.gif"
            FillStyle="LeftMergedWithCenter"></RoundedImage>
        <Tabs>
            <igtab:Tab Key="0" Text="  General Settings  ">
                <Style BackColor="White" ForeColor="Black" Height="30px" Font-Bold="true">
                    </Style>
                <ContentTemplate>
                    tab 0
                </ContentTemplate>
            </igtab:Tab>
            <igtab:Tab Key="1" Text="  General Settings  ">
                <Style BackColor="White" ForeColor="Black" Height="30px" Font-Bold="true">
                    </Style>
                <ContentTemplate>
                    tab 1
                </ContentTemplate>
            </igtab:Tab>
            <igtab:Tab Key="1" Text="  General Settings  ">
                <Style BackColor="White" ForeColor="Black" Height="30px" Font-Bold="true">
                    </Style>
                <ContentTemplate>
                    --%>
                    <telerik:RadEditor runat="server" ID="htmlEditor" SkinID="DefaultSetOfTools" Height="515px"
                        ToolbarMode="RibbonBar" EnableResize="False">
                        <ImageManager UploadPaths="~/HTMLEditorImages" ViewPaths="~/HTMLEditorImages" DeletePaths="~/HTMLEditorImages"
                            SearchPatterns="*.gif,*.jpg,*.jpeg,*.png,*.bmp"></ImageManager>
                        <MediaManager DeletePaths="~/HTMLEditorImages" UploadPaths="~/HTMLEditorImages" ViewPaths="~/HTMLEditorImages"
                            SearchPatterns="*.m4v,*.mov" MaxUploadFileSize="26214400"></MediaManager>
                        <TemplateManager DeletePaths="/HTMLEditorImages" UploadPaths="~/HTMLEditorImages"
                            ViewPaths="~/HTMLEditorImages" />
                        <DocumentManager DeletePaths="/HTMLEditorImages" UploadPaths="~/HTMLEditorImages"
                            ViewPaths="~/HTMLEditorImages" />
                        <FlashManager DeletePaths="~/HTMLEditorImages" UploadPaths="~/HTMLEditorImages" ViewPaths="~/HTMLEditorImages"
                            MaxUploadFileSize="5132288" />
                        <SpellCheckSettings DictionaryPath="~/xml/RadSpell/" />
                        <Content>
                        </Content>
                    </telerik:RadEditor>
                <%--</ContentTemplate>
            </igtab:Tab>
        </Tabs>
    </igtab:UltraWebTab>--%>
</asp:Content>