The code for the Default Webpage is :
<body style="height:100%;width:100%;margin:0px;padding:0; overflow: hidden;">
<form id="form1" runat="server" style="width:100%;height:100%;margin:0;border-spacing:0;overflow:hidden;">
<telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server">
</telerik:RadStyleSheetManager>
<telerik:RadScriptManager ID="RadScriptManager" runat="server"
EnablePageMethods="True">
</telerik:RadScriptManager>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" Runat="server"
height="100%" MinDisplayTime="1000" width="100%">
<img alt="Loading..." src="Images\loading.gif"
style="border-style: none; border-color: inherit; border-width: 0px; height: 65px; width: 121px; vertical-align: middle; text-align: center;" />
</telerik:RadAjaxLoadingPanel>
<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"
DefaultLoadingPanelID="RadAjaxLoadingPanel1">
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="PerformanceTreeView">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="RadAjaxPanel1" />
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:RadAjaxManager>
<div>
<telerik:RadSplitter ID="HeaderSplitter" runat="server" Orientation="Horizontal" ResizeWithBrowserWindow="true" ResizeWithParentPane="true" Height="100%" Width="100%" ResizeMode="AdjacentPane" FullScreenMode="True" Skin="Vista" Scrolling="Node">
<telerik:RadPane ID="HeaderRadPane" runat="server" Scrolling="None" Height="22px">
<telerik:RadSlidingZone ID="HeaderSlideZone" runat="server" Scrolling="None" Height="18px">
<telerik:RadSlidingPane ID="HeaderSlidePane" runat="server" Height="120px" Scrolling="None" Title="Home" Width="282px">
<fpi:FPIHeader ID="PageHeaderControl" runat="server" />
</telerik:RadSlidingPane>
</telerik:RadSlidingZone>
</telerik:RadPane>
<telerik:RadSplitBar ID="PageSplitterBar" runat="server"/>
<telerik:RadPane ID="DataPane" runat="server" Scrolling="None">
<telerik:RadSplitter ID="DataPaneSplitter" Runat="server" ResizeWithParentPane="true" Height="100%" Items-Capacity="0" Orientation="Vertical" ResizeMode="AdjacentPane" Skin="Vista" SplitBarsSize="" Width="100%">
<telerik:RadPane ID="DataTreePane" runat="server" Width="22px" Scrolling="None">
<telerik:RadSlidingZone ID="RadSlidingZone1" runat="server" Width="22px">
<telerik:RadSlidingPane ID="PerformanceZone" runat="server" Title="Performance" Width="160px">
<telerik:RadTreeView ID="PerformanceTreeView" Runat="server" EnableDragAndDrop="True" LoadingStatusPosition="BeforeNodeText" Skin="Telerik" SkinID="Vista" onnodedrop="PerformanceTreeView_NodeDrop">
<CollapseAnimation Duration="100" Type="OutQuint" />
<ExpandAnimation Duration="100" Type="OutQuart" />
<DataBindings>
<telerik:RadTreeNodeBinding ImageUrlField="Image" />
</DataBindings>
</telerik:RadTreeView>
</telerik:RadSlidingPane>
<telerik:RadSlidingPane ID="ReportsZone" runat="server" Title="Reports" Width="160px">
<telerik:RadDatePicker ID="RadDatePicker1" Runat="server">
</telerik:RadDatePicker>
</telerik:RadSlidingPane>
<telerik:RadSlidingPane ID="MVZone" runat="server" Title="MV Data" Width="160px">
</telerik:RadSlidingPane>
<telerik:RadSlidingPane ID="MyReportsZone" runat="server" Title="My Reports" Width="160px">
</telerik:RadSlidingPane>
</telerik:RadSlidingZone>
</telerik:RadPane>
<telerik:RadSplitBar ID="DataPaneSplitBar" runat="server" CollapseMode="Backward"/>
<telerik:RadPane CssClass="slide-panes" ID="ReportPane" runat="server" Height="100%" Scrolling="None" Width="100%">
<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" height="100%" width="100%">
<asp:Panel CssClass="slide-panes" ID="Panel1" runat="server" Width="100%" Height="100%" ScrollBars="None"/>
</telerik:RadAjaxPanel>
</telerik:RadPane>
</telerik:RadSplitter>
</telerik:RadPane>
</telerik:RadSplitter>
</div>
</form>
</body>
The User Control is :
<%
@ Control Language="C#" AutoEventWireup="true" CodeFile="LineReportControl_2.ascx.cs" Inherits="LineReportControl" %>
<%
@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<%
@ Register assembly="Telerik.Charting, Version=1.7.1.0, Culture=neutral, PublicKeyToken=d14f3dcc8e3e8763" namespace="Telerik.Charting" tagprefix="telerik" %>
<
div style="width:100%;height:100%; position: relative; overflow: hidden; z-index:-1;" >
<
asp:Panel ID="OptionPanel" runat="server" Width="100%" Height="22px">
<table style="width:100%; position: relative;">
<tr>
<td width="160px">
<telerik:RadDatePicker ID="RadDatePicker11" Runat="server"
Culture="English (United States)">
<DateInput runat="server" Width="100%">
</DateInput>
<Calendar runat="server" CellAlign="Center" CellVAlign="Middle" DayNameFormat="FirstLetter"
FirstDayOfWeek="Default" MonthLayout="Layout_7columns_x_6rows"
Orientation="RenderInRows" TitleAlign="Center"
UseColumnHeadersAsSelectors="False" UseRowHeadersAsSelectors="False">
</Calendar>
</telerik:RadDatePicker>
</td>
<td width="160px">
<telerik:raddatepicker ID="EndPicker" runat="server"></telerik:raddatepicker>
</td>
<td>
</td>
</tr>
</table>
</asp:Panel>
<telerik:RadChart ID="ReportLineChart" runat="server"
Skin="Vista" DefaultType="Line" Height="400px" Width="600px"
ChartImageFormat="Jpeg">
<legend>
<appearance border-color="" dimensions-margins="1px, 1%, 10%, 1px">
<itemtextappearance textproperties-color="86, 88, 89">
</itemtextappearance>
<itemmarkerappearance figure="Rectangle">
</itemmarkerappearance>
<fillstyle maincolor="">
</fillstyle>
</appearance>
<textblock>
<appearance position-alignedposition="Top" textproperties-color="86, 88, 89">
</appearance>
</textblock>
</legend>
<plotarea>
<xaxis>
<appearance color="134, 134, 134" majortick-color="134, 134, 134">
<majorgridlines color="196, 196, 196" visible="False" />
<textappearance textproperties-color="89, 89, 89">
</textappearance>
</appearance>
<axislabel>
<appearance dimensions-paddings="1px, 1px, 10%, 1px">
</appearance>
<textblock>
<appearance textproperties-color="51, 51, 51">
</appearance>
</textblock>
</axislabel>
</xaxis>
<yaxis>
<appearance color="134, 134, 134" majortick-color="196, 196, 196"
minortick-color="196, 196, 196">
<majorgridlines color="196, 196, 196" />
<minorgridlines color="196, 196, 196" visible="False" />
<textappearance textproperties-color="89, 89, 89">
</textappearance>
</appearance>
<axislabel>
<textblock>
<appearance textproperties-color="220, 158, 119">
</appearance>
</textblock>
</axislabel>
</yaxis>
<appearance border-color="WhiteSmoke" dimensions-margins="19%, 90px, 12%, 9%">
<fillstyle maincolor="Transparent" secondcolor="Transparent">
</fillstyle>
</appearance>
</plotarea>
<series>
<telerik:ChartSeries Name="Series 1" Type="Line">
<appearance border-color="">
<fillstyle maincolor="186, 207, 141" secondcolor="146, 176, 83">
<fillsettings gradientmode="Vertical">
<complexgradient>
<telerik:GradientElement Color="213, 247, 255" />
<telerik:GradientElement Color="193, 239, 252" Position="0.5" />
<telerik:GradientElement Color="157, 217, 238" Position="1" />
</complexgradient>
</fillsettings>
</fillstyle>
<textappearance textproperties-color="89, 89, 89">
</textappearance>
</appearance>
</telerik:ChartSeries>
<telerik:ChartSeries Name="Series 2" Type="Line">
<appearance border-color="">
<fillstyle maincolor="235, 140, 104" secondcolor="214, 110, 90">
<fillsettings gradientmode="Vertical">
<complexgradient>
<telerik:GradientElement Color="218, 254, 122" />
<telerik:GradientElement Color="198, 244, 80" Position="0.5" />
<telerik:GradientElement Color="153, 205, 46" Position="1" />
</complexgradient>
</fillsettings>
</fillstyle>
<textappearance textproperties-color="89, 89, 89">
</textappearance>
</appearance>
</telerik:ChartSeries>
</series>
<appearance border-color="212, 221, 222"
corners="Round, Round, Round, Round, 7">
<fillstyle filltype="ComplexGradient">
<fillsettings>
<complexgradient>
<telerik:GradientElement Color="243, 253, 255" />
<telerik:GradientElement Color="White" Position="0.5" />
<telerik:GradientElement Color="243, 253, 255" Position="1" />
</complexgradient>
</fillsettings>
</fillstyle>
</appearance>
<charttitle>
<appearance border-visible="False" dimensions-margins="3%, 1px, 1px, 6%">
<fillstyle maincolor="">
</fillstyle>
</appearance>
<textblock text="Report Data">
<appearance textproperties-color="86, 88, 89"
textproperties-font="Verdana, 22px">
</appearance>
</textblock>
</charttitle>
</telerik:RadChart>
</div>
Both the DateTimePickers and the chart appear on top of the DataTreePane, any help would be appreciated. Thank you