Response.IsRequestBeingRedirected始終爲假

有人可以解釋爲什麼屬性IsRequestBeingRedirected在我的代碼中始終爲false，以及如何正確重定向以獲取真實值？Response.IsRequestBeingRedirected始終爲假

protected override void OnActionExecuting(ActionExecutingContext filterContext) 
{ 
    base.OnActionExecuting(filterContext); 
    if (filterContext.RequestContext.HttpContext.Response.IsRequestBeingRedirected) 
    { 
     //some another logic 
    } 
    //some code  
    filterContext.RequestContext.HttpContext.Response.Redirect(filterContext.RequestContext.HttpContext.Request.Url.AbsolutePath); 
}

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2015-12-26 user3818229

的IsRequestBeingRedirected屬性時調用Response.Redirect設置爲true 。這是通過.net反射源代碼：

public void Redirect(string url) { this.Redirect(url, true, false); } public void Redirect(string url, bool endResponse) { this.Redirect(url, endResponse, false); } internal void Redirect(string url, bool endResponse, bool permanent) { if (url == null) { throw new ArgumentNullException("url"); } if (url.IndexOf('\n') >= 0) { throw new ArgumentException(System.Web.SR.GetString("Cannot_redirect_to_newline")); } if (this._headersWritten) { throw new HttpException(System.Web.SR.GetString("Cannot_redirect_after_headers_sent")); } Page page = this._context.Handler as Page; if ((page != null) && page.IsCallback) { throw new ApplicationException(System.Web.SR.GetString("Redirect_not_allowed_in_callback")); } url = this.ApplyRedirectQueryStringIfRequired(url); url = this.ApplyAppPathModifier(url); url = this.ConvertToFullyQualifiedRedirectUrlIfRequired(url); url = this.UrlEncodeRedirect(url); this.Clear(); if (((page != null) && page.IsPostBack) && (page.SmartNavigation && (this.Request["__smartNavPostBack"] == "true"))) { this.Write("<BODY><ASP_SMARTNAV_RDIR url=\""); this.Write(HttpUtility.HtmlEncode(url)); this.Write("\"></ASP_SMARTNAV_RDIR>"); this.Write("</BODY>"); } else { this.StatusCode = permanent ? 0x12d : 0x12e; this.RedirectLocation = url; if (UriUtil.IsSafeScheme(url)) { url = HttpUtility.HtmlAttributeEncode(url); } else { url = HttpUtility.HtmlAttributeEncode(HttpUtility.UrlEncode(url)); } this.Write("<html><head><title>Object moved</title></head><body>\r\n"); this.Write("<h2>Object moved to <a href=\"" + url + "\">here</a>.</h2>\r\n"); this.Write("</body></html>\r\n"); } // IsRequestBeingRedirected is set here this._isRequestBeingRedirected = true; EventHandler redirecting = Redirecting; if (redirecting != null) { redirecting(this, EventArgs.Empty); } if (endResponse) { this.End(); } }

所以，你有你打電話Response.Redirect後這是真的來檢查值。

protected override void OnActionExecuting(ActionExecutingContext filterContext) { base.OnActionExecuting(filterContext); //some code filterContext.RequestContext.HttpContext.Response.Redirect(filterContext.RequestContext.HttpContext.Request.Url.AbsolutePath); if (filterContext.RequestContext.HttpContext.Response.IsRequestBeingRedirected) { //some another logic } }

當然，你的邏輯不是很清楚。你已經知道你正在重定向，因爲你打電話給Response.Redirect，所以在這種情況下檢查這個屬性似乎是多餘的。

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2015-12-26 19:55:45 NightOwl888

我只是試圖編寫邏輯來檢測瀏覽器在運行時是否禁用了Cookie。我不知道如何通過另一種方式實現此目的。 – user3818229

如果您在Google上搜索，則已有許多cookie檢查解決方案。 [這一個]（http://stackoverflow.com/questions/3716710/how-to-check-cookie-enabled-for-the-browser-or-not#4149481）看起來很有前途。 – NightOwl888

Response.IsRequestBeingRedirected始終爲假

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