FileWebRequest.GetResponse Method ()

 

Returns a response to a file system request.

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

public override WebResponse GetResponse()

Return Value

Type: System.Net.WebResponse

A WebResponse that contains the response from the file system resource.

Exception Condition
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 example shows how to use the FileWebRequest.GetResponse method 
// to read and display the contents of a file passed by the user.
// Note.  For this program to work, the folder containing the test file
// must be shared, with its permissions set to allow read access. 

using System;
using System.Net;
using System.IO;

namespace Mssc.PluggableProtocols.File
{

  class TestGetResponse
  {
    private static FileWebResponse myFileWebResponse;

    private static void showUsage()
    {
      Console.WriteLine("\nPlease enter file name:");
      Console.WriteLine("Usage: cs_getresponse <systemname>/<sharedfoldername>/<filename>");
    }

    private static bool makeFileRequest(string fileName)
    {
      bool requestOk = false;
      try
      {
        Uri myUrl = new Uri("file://" + fileName);

        // Create a FileWebRequest object using the passed URI. 
        FileWebRequest myFileWebRequest = (FileWebRequest)WebRequest.Create(myUrl);

        // Get the FileWebResponse object.
        myFileWebResponse =(FileWebResponse)myFileWebRequest.GetResponse();

        requestOk = true;
      }
      catch(WebException e)
      {
        Console.WriteLine("WebException: "+e.Message);
      }
      catch(UriFormatException e)
      {
        Console.WriteLine("UriFormatWebException: "+e.Message);
      }

      return requestOk;

    }

    private static void readFile()
    {
      try
      {
        // Create the file stream. 
        Stream receiveStream=myFileWebResponse.GetResponseStream();

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

        // Create a local buffer for a temporary storage of the 
        // read data.
        char[] readBuffer = new Char[256];

        // Read the first 256 bytes.
        int count = readStream.Read( readBuffer, 0, 256 );

        Console.WriteLine("The file content is:");
        Console.WriteLine("");

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

        readStream.Close();

        // Release the response object resources.
        myFileWebResponse.Close();

      }
      catch(WebException e)
      {
        Console.WriteLine("The WebException: "+e.Message);
      }
      catch(UriFormatException e)
      {
        Console.WriteLine("The UriFormatException: "+e.Message);
      }

    }

    static void Main(string[] args)
    {

      if (args.Length < 1)
        showUsage();
      else
      {
        if (makeFileRequest(args[0])== true)
          readFile();
      }   
    }
  }
}

.NET Framework
Available since 1.1
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