How to validate a url in C# winform application

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C#

WinForms

Hi,

How to validate a url in C#.

Thanks in advance

Posted 22-May-14 0:31am

Mohd Wasif

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Ziee-M 22-May-14 6:40am

Hi, what do you mean by validate? maybe you are refering to checking if the string is in a url format?

2 solutions

Solution 1

Hi,

use Uri.TryCreate method to validate url.

Refer following link

http://stackoverflow.com/questions/3228984/a-better-way-to-validate-url-in-c-sharp-than-try-catch[^]

MSDN link :

http://msdn.microsoft.com/en-us/library/system.uri.trycreate.aspx[^]

Posted 22-May-14 0:40am

Bh@gyesh

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Manikandan10 · Accepted Answer · 2014-05-22T00:56:00

Use Uri.IsWellFormedUriString to check whether the URL is in correct form.

For example,

C#

Uri.IsWellFormedUriString("http://www.google.com", UriKind.Absolute);

It'll return true as the URL is in correct form.

To check the existence of a URL create a WebRequest:

C#

WebRequest request = WebRequest.Create("http://www.google.com");
try
{
     request.GetResponse();
}
catch //If exception thrown then couldn't get response from address
{
     /// The URL is incorrect
     MessageBox.Show("The URL is incorrect");
}