I have a string that returns all the contents of a html page.
On this page, you have the following line:
<input style="width: 2.3em;" id="nacional" value="3,48" type="text">
I need only the value that is in value , that is, 3,48 , remembering that this value changes automatically every day.
How can I filter this line and get the value?
I made a Regexr with your default . The regular expression is:
value=\"([\d,]+)\"
In C # it gets a little different.
var regex = new Regex(@"value=""([\d,]+)""");
Once this is done, simply select group 1 (group 0 is the entire match found). That is:
var match = regex.Match("<input style=\"width: 2.3em;\" id=\"nacional\" value=\"3,48\" type=\"text\">");
Console.WriteLine(match.Groups[1].Value);
Here is an example that returns any double-quoted or apostrophe character within the value attribute.
value=['"](.*?)['"]