Handle network exceptions : Web Client « Network « C# / C Sharp

Home
C# / C Sharp
1.2D Graphics
2.Class Interface
3.Collections Data Structure
4.Components
5.Data Types
6.Database ADO.net
7.Design Patterns
8.Development Class
9.Event
10.File Stream
11.Generics
12.GUI Windows Form
13.Language Basics
14.LINQ
15.Network
16.Office
17.Reflection
18.Regular Expressions
19.Security
20.Services Event
21.Thread
22.Web Services
23.Windows
24.Windows Presentation Foundation
25.XML
26.XML LINQ
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source
C# / C Sharp » Network » Web ClientScreenshots 
Handle network exceptions
Handle network exceptions

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/


// Handle network exceptions. 
 
using System; 
using System.Net; 
using System.IO; 
 
public class NetExcDemo {  
  public static void Main() { 
    int ch; 
 
    try 
 
      // First, create a WebRequest to a URI. 
      HttpWebRequest req = (HttpWebRequest
             WebRequest.Create("http://www.osborne.com")
 
      // Next, send that request and return the response. 
      HttpWebResponse resp = (HttpWebResponse
             req.GetResponse()
 
      // From the response, obtain an input stream. 
      Stream istrm = resp.GetResponseStream()
 
      /* Now, read and display the html present at 
         the specified URI.  So you can see what is 
         being displayed, the data is shown 
         400 characters at a time.  After each 400 
         characters are displayed, you must press 
         ENTER to get the next 400. */ 
   
      for(int i=1; ; i++) { 
        ch =  istrm.ReadByte()
        if(ch == -1break
        Console.Write((charch)
        if((i%400)==0) { 
          Console.Write("\nPress a key.")
          Console.Read()
        
      
 
 
      // Close the Response. This also closes istrm. 
      resp.Close()
 
    catch(WebException exc) { 
      Console.WriteLine("Network Error: " + exc.Message +  
                        "\nStatus code: " + exc.Status)
    catch(ProtocolViolationException exc) { 
      Console.WriteLine("Protocol Error: " + exc.Message)
    catch(UriFormatException exc) { 
      Console.WriteLine("URI Format Error: " + exc.Message)
    catch(NotSupportedException exc) { 
      Console.WriteLine("Unknown Protocol: " + exc.Message)
    catch(IOException exc) { 
      Console.WriteLine("I/O Error: " + exc.Message)
    
  
}


           
       
Related examples in the same category
1.Basic WebClient
2.Save web page from HttpWebResponse
3.Displays the resource specified
4.My Web Client
5.Use WebClient to download information into a fileUse WebClient to download information into a file
6.Use LastModifiedUse LastModified
7.Examine the headersExamine the headers
8.Access the InternetAccess the Internet
9.Reading Web Pages
10.NetworkCredential Cache Test
11.NetworkCredential test
12.Download Data Test
13.Download File Test
14.Web GetWeb Get
15.Web Client Upload Values Test
16.Web Client Upload Data Test 2
17.Web Client Response Headers Test
18.Web Client Open Write Test
19.Web Client Open Read Test
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.