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UpdatePanel is the control that facilitate the partial page rendering functionality in an ASP.NET application. As discussed earlier that using ASP.NET AJAX, we can communicate with a web server asynchronously and update a part of a page without a complete page postback. In order to apply partial page update/rendering, we can add one or more UpdatePanel controls to our ASP.NET Page as follows:
Hide Copy Code <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
