<telerik:RadSplitter ID="Radsplitter1" runat="server" Orientation="Horizontal" Width="100%"
Height="100%" BackColor="#c6eaff" ResizeMode="AdjacentPane" LiveResize="True"
FullScreenMode="True">
<telerik:RadPane ID="Radpane1" runat="server" Height="20px" Scrolling="None" MinWidth="20">
<telerik:RadSlidingZone ID="Radslidingzone1" Height="20px" runat="server" DockedPaneId="Radslidingpane2">
<telerik:RadSlidingPane ID="Radslidingpane2" Title="Set Report Parameters" runat="server"
Height="100px" Scrolling="None" MinWidth="40">
<asp:UpdatePanel runat="server" ID="UpdatePanel1">
<ContentTemplate>
<table width="100%">
<tr>
<td width="98%">
<table width="100%" cellpadding="0" cellspacing="5">
<tr>
<td class="view2_fonts">
Language:
</td>
<td class="view_fonts">
<asp:DropDownList ID="ddlLanguage" Width="90" runat="server">
<asp:ListItem Text="Select" Value="0" Selected="True"></asp:ListItem>
</asp:DropDownList>
</td>
<td class="view2_fonts">
Client:
</td>
<td class="view_fonts">
<asp:DropDownList ID="ddlClient" Width="240" runat="server" AutoPostBack="True">
<asp:ListItem Text="Select" Value="0" Selected="True"></asp:ListItem>
</asp:DropDownList>
</td>
<td class="view2_fonts">
Project:
</td>
<asp:Button ID="btnView" runat="server" Width="100" ValidationGroup="1" Text="View Report" />
</ContentTemplate>
</asp:UpdatePanel>
</telerik:RadSlidingPane>
</telerik:RadSlidingZone>
</telerik:RadPane>
<telerik:RadSplitBar ID="Radsplitbar1" runat="server" Width="100%"></telerik:RadSplitBar>
<telerik:RadPane ID="Radpane2" runat="server" Width="100%" Scrolling="None">
<table width="100%" style="height: 100%;">
<tr style="height: 100%;" valign="top">
<td>
<rsweb:ReportViewer ID="rptARC0028aViewer" Font-Names="Verdana" Width="100%" Height="100%"
ShowParameterPrompts="false" ProcessingMode="Remote" PromptAreaCollapsed="True"
ShowBackButton="true" ShowExportControls="true" ShowPageNavigationControls="true"
ShowCredentialPrompts="false" ShowFindControls="true" ShowRefreshButton="true"
ShowPrintButton="true" ShowZoomControl="true" runat="server">
</rsweb:ReportViewer>
</td>
</tr>
</table>
</telerik:RadPane>
</telerik:RadSplitter>
This is the exact design and thanks for the first reply which was exactly correct and need more .when I click on button I need to display only report parameters and my report other things I need to hide and on mouse over I need to display the controls which was done.The code which send u is hiding ,but on second click it was not not hiding and also I have one splitter for report and need to hide,if u look up design u can understand more.if need more clarification I ll explain