Progress Bar in Update Panel in C#

Use below Code to have Progress Bar in ASP.net with C# using AJAX

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<table>
<tr>
<td>
<asp:UpdateProgress runat="server" ID="UpdateProgress1" 

DynamicLayout="false" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate>
<img id="Img1" runat="Server" src="<Path of Gif or motion image file>" height="12"  alt=""/>
</ProgressTemplate>
</asp:UpdateProgress>
</td>
</tr> 

<tr>
<td><asp:Button CssClass="button" Text="Search" runat="server" ID="NewPage" />              
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>