RequestCachePolicy.ToString 方法

定义

命名空间:

System.Net.Cache

程序集:

System.Net.Primitives.dll

Source:

RequestCachePolicy.cs

返回此实例的字符串表示形式。

public:
 override System::String ^ ToString();

public override string ToString ();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

返回

String

一个 String，其中包含此实例的 Level。

示例

下面的代码示例创建一个 NoCacheNoStore 策略并发送一个请求。

static WebResponse^ GetResponseFromServer( Uri^ uri )
{
   RequestCachePolicy^ policy = gcnew RequestCachePolicy( RequestCacheLevel::NoCacheNoStore );
   WebRequest^ request = WebRequest::Create( uri );
   request->CachePolicy = policy;
   WebResponse^ response = request->GetResponse();
   Console::WriteLine( L"Policy is {0}.", policy );
   Console::WriteLine( L"Is the response from the cache? {0}", response->IsFromCache );
   return response;
}

public static WebResponse GetResponseFromServer(Uri uri)
{
     RequestCachePolicy policy =
        new  RequestCachePolicy( RequestCacheLevel.NoCacheNoStore);
    WebRequest request = WebRequest.Create(uri);
    request.CachePolicy = policy;
    WebResponse response = request.GetResponse();
    Console.WriteLine("Policy is {0}.", policy.ToString());
    Console.WriteLine("Is the response from the cache? {0}", response.IsFromCache);
    return response;
}

另请参阅

• 网络应用程序的缓存管理