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FileWebRequest::GetResponse Method

Returns a response to a file system request.

Namespace:  System.Net
Assembly:  System (in System.dll)

public:
virtual WebResponse^ GetResponse() override

Return Value

Type: System.Net::WebResponse
A WebResponse that contains the response from the file system resource.

ExceptionCondition
WebException

The request timed out.

The GetResponse method returns a WebResponse object that contains the response from the file system resource.

The GetResponse method provides synchronous access to the WebResponse. For asynchronous access, use the BeginGetResponse and EndGetResponse methods.

The following code example uses the GetResponse method to return a file system request response.

// 
// This program shows how to use the FileWebRequest::GetResponse method  
// to read and display the content of a file passed by the user. 
// Note. In order for this program to work, the folder containing the test file 
// must be shared with its permissions set to allow read access. 
#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::IO;
ref class TestGetResponse
{
private:
   static FileWebResponse^ myFileWebResponse;
   static void showUsage()
   {
      Console::WriteLine( "\nPlease enter file name:" );
      Console::WriteLine( "Usage: cs_getresponse <systemname>/<sharedfoldername>/<filename>" );
      Console::WriteLine( "Example: cs_getresponse ndpue/temp/hello.txt" );
   }

   static bool makeFileRequest( String^ fileName )
   {
      bool requestOk = false;
      try
      {
         Uri^ myUrl = gcnew Uri( String::Format( "file://{0}", fileName ) );

         // Create a Filewebrequest object using the passed Uri. 
         FileWebRequest^ myFileWebRequest = dynamic_cast<FileWebRequest^>(WebRequest::Create( myUrl ));

         // Get the FileWebResponse object.
         myFileWebResponse = dynamic_cast<FileWebResponse^>(myFileWebRequest->GetResponse());
         requestOk = true;
      }
      catch ( WebException^ e ) 
      {
         Console::WriteLine( "WebException: {0}", e->Message );
      }
      catch ( UriFormatException^ e ) 
      {
         Console::WriteLine( "UriFormatWebException: {0}", e->Message );
      }

      return requestOk;
   }

   static void readFile()
   {
      try
      {

         // Create the file stream. 
         Stream^ receiveStream = myFileWebResponse->GetResponseStream();

         // Create a reader object to read the file content.
         StreamReader^ readStream = gcnew StreamReader( receiveStream );

         // Create a local buffer for a temporary storage of the  
         // read data. 
         array<Char>^readBuffer = gcnew array<Char>(256);

         // Read the first up to 256 bytes. 
         int count = readStream->Read( readBuffer, 0, 256 );
         Console::WriteLine( "The file content is:" );
         Console::WriteLine( "" );

         // Loop to read the remaining bytes in 256 blocks 
         // and display the data on the console. 
         while ( count > 0 )
         {
            String^ str = gcnew String( readBuffer,0,count );
            Console::WriteLine(  "{0}\n", str );
            count = readStream->Read( readBuffer, 0, 256 );
         }
         readStream->Close();

         // Release the response object resources.
         myFileWebResponse->Close();
      }
      catch ( WebException^ e ) 
      {
         Console::WriteLine( "The WebException: {0}", e->Message );
      }
      catch ( UriFormatException^ e ) 
      {
         Console::WriteLine( "The UriFormatException: {0}", e->Message );
      }

   }


public:
   static void Main()
   {
      array<String^>^args = Environment::GetCommandLineArgs();
      if ( args->Length < 2 )
            showUsage();
      else
      {
         if ( makeFileRequest( args[ 1 ] ) )
                  readFile();
      }
   }

};

int main()
{
   TestGetResponse::Main();
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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