RequestCachePolicy Class
Definition
Important
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Defines an application's caching requirements for resources obtained by using WebRequest objects.
public ref class RequestCachePolicy
public class RequestCachePolicy
type RequestCachePolicy = class
Public Class RequestCachePolicy
- Inheritance
-
RequestCachePolicy
- Derived
Examples
The following code example creates a policy with Level set to CacheOnly, and uses it to set the cache policy of a WebRequest.
static WebResponse^ GetResponseFromCache( Uri^ uri )
{
RequestCachePolicy^ policy = gcnew RequestCachePolicy( RequestCacheLevel::CacheOnly );
WebRequest^ request = WebRequest::Create( uri );
request->CachePolicy = policy;
WebResponse^ response = request->GetResponse();
Console::WriteLine( L"Policy level is {0}.", policy->Level );
Console::WriteLine( L"Is the response from the cache? {0}", response->IsFromCache );
return response;
}
public static WebResponse GetResponseFromCache(Uri uri)
{
RequestCachePolicy policy =
new RequestCachePolicy( RequestCacheLevel.CacheOnly);
WebRequest request = WebRequest.Create(uri);
request.CachePolicy = policy;
WebResponse response = request.GetResponse();
Console.WriteLine("Policy level is {0}.", policy.Level.ToString());
Console.WriteLine("Is the response from the cache? {0}", response.IsFromCache);
return response;
}
Remarks
You can specify a default cache policy for your application by using the DefaultCachePolicy property or the application or machine configuration files. For more information, see <requestCaching> Element (Network Settings).
You can specify the cache policy for an individual request by using the CachePolicy property.
Caching for Web services is not supported.
Constructors
RequestCachePolicy() |
Initializes a new instance of the RequestCachePolicy class. |
RequestCachePolicy(RequestCacheLevel) |
Initializes a new instance of the RequestCachePolicy class. using the specified cache policy. |
Properties
Level |
Gets the RequestCacheLevel value specified when this instance was constructed. |
Methods
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Returns a string representation of this instance. |
Applies to
See also
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