Question

I have a RegEx I am using in vb.net and i can get all the matches of the text but i want to get the first match of the text, this is what i am using.

Text: :1283 xxxxxxxxxx :1288 :9879

RegEx: :[0-9]+

How do i just get the first match (:1283)?

The code i am using is:

Dim MRIDRegex As New Regex(":[0-9]+")
    Dim count As Integer = 0
    Dim mrid As String = String.Empty
    For Each item As Match In MRIDRegex.Matches(message)

        count += 1
        If count = 1 Then
            mrid = item.Value
        End If

    Next

Answer 1

I searched on Google for vb.net regex match, and this was the first result. This is the code sample they used.

Imports System.Text.RegularExpressions

Module Module1

    Sub Main()
    ' The input string.
    Dim value As String = "/content/alternate-1.aspx"

    ' Invoke the Match method.
    Dim m As Match = Regex.Match(value, _
                     "content/([A-Za-z0-9\-]+)\.aspx$", _
                     RegexOptions.IgnoreCase)

    ' If successful, write the group.
    If (m.Success) Then
        Dim key As String = m.Groups(1).Value
        Console.WriteLine(key)
    End If
    End Sub

End Module