Get numeric part from string using regex and c #

Question

Anyone who wants to show me how to get the integer part from this line using C #?

string url = "/{localLink:1301}"; 

I used something like this, but could not work normally

 var getNumeric = new Regex(".*([0-9]+)"); 

Answer 1

Your expression may be as simple as \d+ , given the assumption that there will be only one number in your input. Still in this assumption, using ToString in the resulting match, you will get what you are looking for.

 var regex = Regex.Match("/{localLink:1301}", @"\d+"); var result = regex.ToString(); 

Answer 2

Your .* Greedy. do you need either .*? or [^\d]*

 new Regex( ".*?(\d+)" ); 

Answer 3

you can try this ....

 string output = new string(input.ToCharArray().Where(c => char.IsDigit(c)).ToArray());