validate an url

[Guoqi Zheng]

How can I validate an URL in real time, connect to that URL directly and see
it response with ok status.

I think it might need to use webclient, or webrequest + webresponse, but I
have not found out how to do it.

Any help?

--
Kind regards

Guoqi Zheng
guoqi AT meetholland dot com
Http://www.meetholland.com

 

[Scott Allen]

You can use either WebClient or WebRequest. I have an article using
both classes that does more than you need, but should give you more
than enough code to get started:

http://odetocode.com/Articles/162.aspx

HTH,

 

[jongalloway]

How can I validate an URL in real time, connect to that URL directly and see
it response with ok status.

I think it might need to use webclient, or webrequest + webresponse, but I
have not found out how to do it.

Any help?

--
Kind regards

Guoqi Zheng
guoqi AT meetholland dot com
Http://www.meetholland.com

 

[jongalloway]

Guoqi -

Check for HttpWebResponse.StatusCode == HttpStatusCode.OK.

Sample function from MSDN
(http://msdn.microsoft.com/library/d...temnethttpwebresponseclassstatuscodetopic.asp)

public static void GetPage(String url)
{
try
{
// Creates an HttpWebRequest for the specified URL.
HttpWebRequest httpWebRequest =
(HttpWebRequest)WebRequest.Create(url);
// Sends the HttpWebRequest and waits for a response.
HttpWebResponse httpWebResponse =
(HttpWebResponse)httpWebRequest.GetResponse();
if (httpWebResponse.StatusCode == HttpStatusCode.OK)
Console.WriteLine("\r\nResponse Status Code is OK and
StatusDescription is: {0}",
httpWebResponse.StatusDescription);
// Releases the resources of the response.
httpWebResponse.Close();

}
catch(WebException e)
{
Console.WriteLine("\r\nWebException Raised. The following
error occured : {0}",e.Status);
}
catch(Exception e)
{
Console.WriteLine("\nThe following Exception was raised :
{0}",e.Message);
}
}

- Jon
http://weblogs.asp.net/jgalloway

 

[jongalloway]

Guoqi -

You need to check the HttpWebRequest.Status property. Sample code from
MSDN:

http://msdn.microsoft.com/library/d...temnethttpwebresponseclassstatuscodetopic.asp

public static void GetPage(String url)
{
try
{
// Creates an HttpWebRequest for the specified URL.
HttpWebRequest myHttpWebRequest =
(HttpWebRequest)WebRequest.Create(url);
// Sends the HttpWebRequest and waits for a response.
HttpWebResponse myHttpWebResponse =
(HttpWebResponse)myHttpWebRequest.GetResponse();
if (myHttpWebResponse.StatusCode == HttpStatusCode.OK)
Console.WriteLine("\r\nResponse Status Code is OK and
StatusDescription is: {0}",

myHttpWebResponse.StatusDescription);
// Releases the resources of the response.
myHttpWebResponse.Close();

}
catch(WebException e)
{
Console.WriteLine("\r\nWebException Raised. The following
error occured : {0}",e.Status);
}
catch(Exception e)
{
Console.WriteLine("\nThe following Exception was raised :
{0}",e.Message);
}
}

- Jon
http://weblogs.asp.net/jgalloway