stylebundle mvc ASP.NET MVC

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In ASP.NET MVC, StyleBundle is a class provided by the System.Web.Optimization namespace that is used to bundle and minify multiple CSS files into a single file. It allows you to reduce the number of HTTP requests and improve the performance of your web application.

Here are the steps to use StyleBundle in ASP.NET MVC:

  1. Add the Microsoft.AspNet.Web.Optimization NuGet package to your project.

  2. In the BundleConfig.cs file in the App_Start folder, define a new StyleBundle by calling the StyleBundle() constructor and passing in a virtual path for the bundle. For example, the following code creates a StyleBundle for the site-wide CSS files:

using System.Web.Optimization;

public class BundleConfig
{
    public static void RegisterBundles(BundleCollection bundles)
    {
        bundles.Add(new StyleBundle("~/Content/css").Include(
                    "~/Content/bootstrap.css",
                    "~/Content/site.css"));
    }
}

In the above code, ~/Content/css is the virtual path for the bundle, and Include() method is used to specify the files to be included in the bundle.

  1. In the _Layout.cshtml file, use the Styles.Render() method to include the bundle in your web page. For example, the following code includes the ~/Content/css bundle in the head section of your page:
<head>
    @Styles.Render("~/Content/css")
</head>
  1. Run your application and verify that the CSS files are loaded correctly. You can view the source of the web page to see the bundled and minified CSS code.

By using StyleBundle in ASP.NET MVC, you can optimize the performance of your web application by reducing the number of HTTP requests and improving the loading time of your web pages.