How to parse a quoted string?

Question

I have a string similar to this, this string is from a long HTML page source:

"entity_id":"1234567890"

I'm trying to parse the number 1234567890 like this, but the id could not be parsed:

var re = new Regex("\"entity_id\":\"([0 - 9] +)\"");
var match = re.Match(task.Result);

var id = match.Success ? match.Value : string.Empty;
Console.WriteLine(id);

Why it it's not parsed and how to fix it?

This looks a lot like a fragment from a larger JSON content. Is this JSON? — Tim Biegeleisen, Jun 04 '19 at 10:57
With regex: `var id = Regex.Match(s, "\"entity_id\":\"([0-9]+)\"")?.Groups[1].Value`. — Wiktor Stribiżew, Jun 04 '19 at 10:59

score 1 · Accepted Answer · answered Jun 04 '19 at 11:02

1

Lose the spaces:

//var re = new Regex("\"entity_id\":\"([0 - 9] +)\"");
  var re = new Regex("\"entity_id\":\"([0-9]+)\"");

and then use

 var id = match.Success ? match.Groups[1].Value : string.Empty;

answered Jun 04 '19 at 11:02

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good work. works – ivy104902 Jun 04 '19 at 18:30

How to parse a quoted string?

1 Answers1