Question

I have a a string containing this text…

BEGIN Fin Bal -461.000 Day 4 END

BEGIN Fin Bal 88861.000 Day 2 END

BEGIN Fin Bal 456461.000 Day 1 END

BEGIN Fin Bal -44561.000 Day 0 END

I need to extract the value

-461.000

Including if its negative or not.

I have been using this…

static string ExtractNumbers(string expr)
{
    //removes all text from string
    return string.Join(null, System.Text.RegularExpressions
                 .Regex.Split(expr, "[^\\d]"));
}

Problem is this removes the negative symbol and also keeps the 4 from the day value.

Is there any way to get the numeric value after the word Bal efficiently? Excluding any text after the wanted value?

Thanks, Paul.

Answer 1

For a LINQ solution which grabs the first number:

string str = "BEGIN Fin Bal -461.000 Day 4 END";
decimal d;
string n = str.Split(' ').Where(s => decimal.TryParse(s, out d)).FirstOrDefault();
Console.WriteLine(n == null ? "(none)" : decimal.Parse(n).ToString());