How to Prevent Caching in Specific ASP.NET MVC Actions?

Avoiding Caching in Specific ASP.NET MVC Actions

Dynamic data retrieval via jQuery necessitates preventing caching to maintain data accuracy. This article outlines how to enforce a no-cache policy for targeted ASP.NET MVC actions.

Employing the NoCache Attribute

A customizable NoCache attribute offers per-action caching control. Implementation involves:

• Creating a custom attribute:

  <code class="language-csharp">  [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
    public sealed class NoCacheAttribute : ActionFilterAttribute
    {
        public override void OnResultExecuting(ResultExecutingContext filterContext)
        {
            // Configure cache control headers to prevent caching
        }
    }</code>

• Applying the attribute:

  • Controller-wide: [NoCache] public class HomeController : Controller
  • Specific actions: [NoCache] public ActionResult GetRecords()

Alternative Caching Prevention Techniques

Beyond the NoCache attribute, consider these options:

• jQuery AJAX configuration: Set cache: false within your jQuery AJAX calls.
• Response header manipulation: Directly set cache control headers in your MVC action results.

Hard Refresh Requirement

After implementing caching prevention, a hard refresh (Ctrl F5) might be needed to clear existing browser cache.

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