chose est l'OMI pour créer un Easiest attribut de filtre d'action. Ensuite, vous pouvez simplement marquer vos contrôleurs avec (ou ajouter aux filtres globaux dans MVC3).
est ici l'attribut:
/// <summary>
/// If the user has IE6, this will present them with a page that tells them they have a crappy old browser. It gives them options to upgrade but they can also
/// choose to proceed anyway. This check is done only when they first visit the site. A cookie also prevents unnecessary future checks, so this won't slow the app down.
/// </summary>
public class WarnAboutIE6Attribute : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
var request = filterContext.HttpContext.Request;
//this will be true when it's their first visit to the site (will happen again if they clear cookies)
if (request.UrlReferrer == null && request.Cookies["browserChecked"] == null)
{
//give old IE users a warning the first time
if (request.Browser.Browser.Trim().ToUpperInvariant().EqualsExact("IE") && request.Browser.MajorVersion <= 6)
{
filterContext.Controller.ViewData["RequestedUrl"] = request.Url.ToString();
filterContext.Result = new ViewResult { ViewName = "InternetExplorerOldWarning" };
}
filterContext.HttpContext.Response.AppendCookie(new HttpCookie("browserChecked", "true"));
}
}
}
Ce contrôle d'attributs pour IE6, et si elle est présente, elle rend le « InternetExplorerOldWarning » vue, que vous devez créer. Il ne présente cet avertissement qu'une seule fois en utilisant un cookie. Vous pouvez bien sûr modifier ce que vous voulez. À mon avis, je leur ai donné des liens pour mettre à jour ou télécharger d'autres navigateurs. Je leur ai également donné l'opportunité de continuer avec IE6. Check it out:
<h3>
Your Internet Explorer is Outdated</h3>
<div class="warning">Your version of Internet Explorer is a bit too old and unfortunately won't work well with this site.</div>
<p>Have no fear. You have options and in just a few minutes you can be rocking out in our app:</p>
<ul>
<li>If you have FireFox, Safari, or Google Chrome already on your computer use one of them for Takeoff instead.</li>
<li>Upgrade to the <a href="http://www.microsoft.com/windows/internet-explorer/worldwide-sites.aspx">latest Internet Explorer.</a> You can download and install right away. Even Microsoft recommends you do this.</li>
<li>Download an Internet Explorer alternative. We recommend <a href="http://www.mozilla.com/en-US/firefox/firefox.html">FireFox</a>, <a href="http://www.apple.com/safari/download/">Safari</a>, or <a href="http://www.google.com/chrome">Google Chrome</a>. Choose one or all because each is great!</li>
</ul>
<p>This warning page will only show once. If you really want to use Takeoff with your current Internet Explorer, we won't stop you. But beware, it will probably look like garbage!</p>
<p>Whatever dude, I want to <a href="@ViewData["RequestedUrl"] ">my old, insecure, scary, dangerous version</a> of Internet Explorer.</p>
</div>
Solution très propre. Merci beaucoup. – Gopinath
N'avait pas besoin du code complet, mais l'accès aux informations du navigateur ('request.Browser.Browser' et' request.Browser.MajorVersion') était le point. Bon travail. – nrod