hi Sandeep,
if i add the textbox within update panel its not work.
my aspx code is given below
<asp:UpdatePanel ID="UpdatePanel3" runat="server">
<ContentTemplate>
<td><asp:TextBox ID="FromCalTextBox" runat="server" CssClass="BoxText" ></asp:TextBox>
<asp:Calendar ID="Calendar1" runat="server"
onselectionchanged="Calendar1_SelectionChanged" ShowGridLines="True"
Visible="False" CellPadding="1" DayNameFormat="Shortest" Height="71px"
Width="71px"></asp:Calendar>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnShowCalendar" EventName="click" />
</Triggers>
</asp:UpdatePanel>
<asp:Button ID="btnShowCalendar" runat="server" CssClass="Btn"
Text="From Date" onclick="btnShowCalendar_Click" /></td>
when i run page its not popup the calender on button click.
please help me.