How to declare text with a line

Question

I\'m new to programming and decided to take VB.net up as my first language, I\'m quite new and I\'m currently trying to write a sorting program. I\'m trying to load in a file, s

Answer 1

Using a regular expression to check for a match and extract the score values would be one option. Using File.ReadLines (or File.ReadAllLines pre .NET 4.0) will simplify the IO. You can also use LINQ to query for the matching lines and sort them:

Dim sortedScores =
    From line in File.ReadLines("S:\class" & CName & ".rtf")
    Let match = Regex.Match(line, "Score: (\d+)")
    Where match.Success
    Order By CInt(match.Groups(1).Value) Descending
    Select line
For Each line In sortedScores
    Console.WriteLine(line)
Next

You can remove the Descending is you want lowest to highest.

If you want to extract the score values, you could modify the query slightly:

Dim justTheScores =
    From line in File.ReadLines("S:\class" & CName & ".rtf")
    Let match = Regex.Match(line, "Score: (\d+)")
    Where match.Success
    Select CInt(match.Groups(1).Value)

justTheScores will be an IEnumerable(Of Integer) containing just the scores.

More useful may be to extract the name and score:

Dim results =
    From line in File.ReadLines("S:\class" & CName & ".rtf")
    Let match = Regex.Match(line, "Name: (.*) \| Score: (\d+)")
    Where match.Success
    Select Name = match.Groups(1).Value, Score = CInt(match.Groups(2).Value)

This will give you an IEnumerable of anonymous types with Name and Score properties.