ASP.NET 4.5 ScriptManager Improvements in WebForms

The ScriptManger control has undergone some key changes in ASP.NET 4.5 which makes it easier to register, manage and combine scripts using the ASP.NET weboptimizationfeature.

ASP.NET Web optimization framework

The ASP.NET Web optimization framework provides services to improve the performance of your ASP.NET Web applications.

Current services provided by the framework include:

• bundling - combining multiple scripts or style resources together into a single resource, and thereby requiring browsers to make fewer HTTP requests
• minification - making scripts or styles smaller using techniques such variable name shortening, white space elimination, etc.

Easy Integration with JQuery and JQueryUI

The default templates for WebForms ship with the following packages “AspNet.ScriptManager.jQuery” and “AspNet.ScriptManager.jQuery.UI.Combined”. These packages make it easier to bring in jquery and jqueryUI libraries and also register them with the ScriptManager. Here is how it works.

<asp:ScriptManager runat="server">
        <Scripts>
            <asp:ScriptReference Name="jquery" />
            <asp:ScriptReference Name="jquery.ui.combined" />            
        </Scripts>
    </asp:ScriptManager>

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ASP.NET Web optimization