How Can I Preserve Parameters When Using RedirectToAction()?

Maintaining Parameters with RedirectToAction()

Imagine you're using a link like this: Site/Controller/Action/ID (where ID is a number). Later, you need to redirect to the same action from within a controller.

Instead of using potentially problematic temporary storage like TempData (which can cause issues on page refresh), use the routeValues parameter in RedirectToAction(). Simply assign your parameter value to the correct key, like this:

<code class="language-csharp">return RedirectToAction("Action", new { id = 99 });</code>

This directly redirects to Site/Controller/Action/99, cleanly preserving the parameter without needing temporary data storage.

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