C# &引用;该名称在当前上下文中不存在;
我得到以下错误; 当前上下文中不存在名称“Request”C# &引用;该名称在当前上下文中不存在;,c#,asp.net,C#,Asp.net,我得到以下错误; 当前上下文中不存在名称“Request” 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 f
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);
}
}
}
我是一个绝对的新手,已经研究过这个错误,但是对于我可能缺少哪个程序集作为参考,我感到困惑。如果你是指HttpWebRequest,你应该包括名称空间 Net系统 更改此行:
class Ex15_CreateMeetingOnBehalfOfPrinciple_CS
为此:
class Ex15_CreateMeetingOnBehalfOfPrinciple_CS : System.Web.UI.Page
看起来您遇到的问题来自于您应该从该类继承的属性。问题可能就在这里
var request = HttpContext.Current.Request.QueryString["source"];
HttpRequest q = Request;
您使用的变量名是requestbtrequest
将此更改为
var request = HttpContext.Current.Request.QueryString["source"];
HttpRequest q = request;
这将解决你的问题如果这是网页背后的代码,它应该扩展类
System.Web.UI.Page
。我真希望我知道这意味着什么。你是在引用System.Web吗?直到我决定添加代码以获取url参数,我才这样做。哦,是的,mellamokb可能是对的。C#中的变量名区分大小写。HttpRequest不只是存在于System.Web中吗?说namespace System.Web.com,甚至是“HttpRequest q=HttpContext.Current.Request.QueryString[“source”];”