If line1(in richtextbox) contains "xxxxx" And line2 contains "xxxx" And line3 contains "xxxx" Then blah...
Dim LineNumber as integer=1
For LineText as string in RichTextBox1.Text
If LineNumber = 1 Then
If LineTex*****ntains("xxxx") Then
'Blah Blah Blah
End If
End If
LineNumber+=1
Next

