Regex to remove urls from string c#

Question

I have the following code and the regular expression I am currently using does not appear to be catching any url I enter in standard format (www.google.com) as when it is displayed in a listbox, the URL is still there. Does anyone know where I'm going wrong?

e1.MessageBody = txtMessage.Text;
                Regex.Replace(e1.MessageBody, @"/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)/", ""string.Empty);

can you show an example of what the original URL looks like and what you're expecting.. www.google.com is displayed really doesn't explain the issue.. perhaps you could use the string.Replace along with the Uri.Query or Uri Class you split and replace.. not understanding your question — MethodMan
– MethodMan, Commented Nov 26, 2014 at 19:04
I'm looking to completely remove the url, hence the use of string.empty, therefore it showing means the regex isn't catching and removing www.google.com — 34587
– 34587, Commented Nov 26, 2014 at 19:06
In the sample code you provided you're not assigning the result of the Regex.Replace to anything and ""string.Empty is an invalid parameter. — Michael McGriff
– Michael McGriff, Commented Nov 26, 2014 at 19:17

Nathan · Accepted Answer · 2014-11-26 19:02:17Z

3

var msg = "ASD www.google.com EFIG";

msg = Regex.Replace(msg, @"((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)", string.Empty);

C# doesn't use the regex identifiers (the leading/trailing /) and you had extra quotes " by the string.empty parameter.

answered Nov 26, 2014 at 19:02

Nathan

1,49712 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Regex to remove urls from string c#

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related