CodeXchange Friday, March 29, 2024
Home
What's it?
Download
Register
My Snippets
Add Snippet
Search
Faq
Contact Us
Sponsors

Website hosted by


Code Snippet Preview

Review the code snippet before inserting it on your project.

Snippet Metadata
Summary: How to check to make sure a URL is valid
Language: C#
Author: Robert Wagner
Author snippets RSS:
Culture: en-US
Bytes: 749
Visual Studio 2005 Snippet:

Snippet Stats
Downloads: 0
Overall rating : 0
Average rating : Snippet rating

Snippet Preview
Code:
//If you have users enter URLs and you would like to check them to make sure they exist before you //save them to the database, here is the code:
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.Net.Sockets" %>
<script runat="server">
    public void Page_Load(Object sender, EventArgs E) {
      string url = "www.google.com";
      if(UrlIsValid(url)) {
         Response.Write("The URL '" + url + "' is valid.");
      } else {
         Response.Write("The URL '" + url + "' is NOT valid.");
      }
    }
   public static bool UrlIsValid(string smtpHost)
   {
      bool br = false;
      try {
         IPHostEntry ipHost = Dns.Resolve(smtpHost);
         br = true;
      }
      catch (SocketException se) {
         br = false;
      }
      return br;
   }
script>

Snippet Comments
Comments:
No comments for this snippet

Other snippets that may interest you..
Related Snippets
TDT - GridPage - Page_Init (C#)
CustomValitaor (C#)
(C#)
Get the file extension from a file path or file name (VB.NET)
grab record from db and subtracts it from variable (VB.NET)



Copyright ©2009-2024 CodeXchange. Server version 1.0.3720.32855 Client Version 0.9.0.0

With from Barcelona

Most Helpful members
These are the members who have received the most points for their helpful samples
Zepho Zep
Robert Wagner
Galen Taylor

All time 'Hall of fame'
Formating a file size and adding the B, KB, MB and GB extension appropriately with string.Format (C#)
INI File Access (VB.NET)
Read XML from string into DataSet (C#)
Create Manifest File for your Application (VB.NET)
Round function to avoid banker's rounding (VB.NET)
Get Short and Long Path Names (VB.NET)
Sending Mail through authenticated SMTP server (C#)
One Way Hash for strings (C#)
Formating a file size and adding the B, KB, MB and GB extension appropriately with string.Format (C#)
How do I load an image from a URI address? (VB.NET)
Use our easy to use Visual Studio.NET addin client and start sharing code snippets with the CodeXchange community!
Refreshed: Friday, March 29, 2024