“该名称在当前上下文中不存在”

Question

I get the following error; The name 'Request' does not exist in the current context

using System;
using System.Web;
using System.Web.UI;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using Microsoft.Exchange.WebServices.Data;

namespace Exchange101
{
    // This sample is for demonstration purposes only. Before you run this sample, make sure that the code meets the coding requirements of your organization.
    class Ex15_CreateMeetingOnBehalfOfPrinciple_CS
    {
        static ExchangeService service = Service.ConnectToService(UserDataFromConsole.GetUserData(), new TraceListener());
        protected void Page_Load(object sender, EventArgs e)
        {
            var request = HttpContext.Current.Request.QueryString["source"];
            HttpRequest q = Request;
            NameValueCollection n = q.QueryString;
            if (n.HasKeys())
            {
                string k = n.GetKey(0);
                if (k == "one")
                {
                    string v = n.Get(0);
                }
                if (k == "two")
                {
                    string v = n.Get(0);
                }
            }
        }

I'm an absolute newbie and have researched the error but am confused as to which assembly I might be missing as a reference.

Answer 1

issue may be here

 var request = HttpContext.Current.Request.QueryString["source"];
 HttpRequest q = Request;

your variable name is request bt you are using Request

change this as

 var request = HttpContext.Current.Request.QueryString["source"];
 HttpRequest q = request;

this wil solve your issue

Answer 2

Change this line:

class Ex15_CreateMeetingOnBehalfOfPrinciple_CS

to this:

class Ex15_CreateMeetingOnBehalfOfPrinciple_CS : System.Web.UI.Page

It looks like the problems you're getting are from properties you should be inheriting from that class.

Answer 3

如果你的意思是HttpWebRequest，你应该使用System.Net包含命名空间;