50 lines
1.7 KiB
C#
50 lines
1.7 KiB
C#
using System;
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using System.Web;
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using VAR.Json;
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namespace VAR.WebForms.Common.Code
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{
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public static class ExtensionMethods
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{
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#region HttpContext
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public static string GetRequestParm(this HttpContext context, string parm)
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{
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foreach (string key in context.Request.Params.AllKeys)
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{
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if (string.IsNullOrEmpty(key) == false && key.EndsWith(parm))
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{
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return context.Request.Params[key];
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}
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}
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return string.Empty;
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}
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public static void ResponseObject(this HttpContext context, object obj)
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{
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var jsonWritter = new JsonWriter();
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context.Response.ContentType = "text/json";
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string strObject = jsonWritter.Write(obj);
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context.Response.Write(strObject);
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}
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public static void PrepareCacheableResponse(this HttpResponse response)
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{
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const int secondsInDay = 86400;
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response.ExpiresAbsolute = DateTime.Now.AddSeconds(secondsInDay);
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response.Expires = secondsInDay;
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response.Cache.SetCacheability(HttpCacheability.Public);
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response.Cache.SetMaxAge(new TimeSpan(0, 0, secondsInDay));
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}
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public static void PrepareUncacheableResponse(this HttpResponse response)
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{
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response.ExpiresAbsolute = DateTime.Now.AddDays(-2d);
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response.Expires = -1500;
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response.AddHeader("Cache-Control", "max-age=0, no-cache, no-store");
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response.BufferOutput = true;
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}
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#endregion HttpContext
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}
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} |