VB.net search textbox for string and return it once

Question

I don't know why this is happening but I have some code that searches a textbox on the form for a string:

Dim strLines() As String = strText.Split(CChar(Environment.NewLine))
    Dim i As Integer
    Dim strRet As String = ""

    For j As Integer = 0 To strLines.Length - 1
        i = strLines(j).IndexOf("&&&")
        If i >= 0 Then
            strRet &= strLines(j).Substring(i + 3) & Environment.NewLine
        End If
        If strRet.Length > 0 Then
            If txtConsole.TextLength > 0 Then
                Call ClearCon()
            End If

            rtxtDefinition.Text = ""

            txtWrdDefn.Text = strRet

            Dim sourceString As String = New System.Net.WebClient().DownloadString("http://api.urbandictionary.com/v0/define?term=" & strRet)

            rtxtDefinition.Text = sourceString

After all this is just processes it and that works fine. The problem is that this gets its info from a game in which you are unable to clear the console, so it keep searching it over and over an keeps returning the same definition. Is there a way to prevent this from happening since the game console cannot be cleared?

Answer 1

As pointed out in my comment, here with code:

Public Class Form1

Dim LastSearchEnd As Integer = 0 'This variable keeps it's value, it's initialized with the value 0 on program start
Private Sub SearchStuff()
    Dim strLines() As String = Strings.Split(TextBox1.Text, Environment.NewLine) 'Split the text into lines
    For i = LastSearchEnd To strLines.Count - 1 'Start at the value you kept
        If strLines(i).Contains("&&&") Then 'Found the value
            MsgBox("FOUND IT!!")
            LastSearchEnd = i + 1 'We actually keep i+1 because we don't want to search the same line twice
            Exit For
        End If
    Next
End Sub

End Class

That's a broken down example for the thing I think you want.