Delete specific lines in a text file using vb.net

Question

I am trying to delete some specific lines of a text using VB.Net. I saw a solution here however it is in VB6. The problem is, I am not really familiar with VB6. Can somebody

Answer 1

Dim delLine As Integer = 10
Dim lines As List(Of String) = System.IO.File.ReadAllLines("infile.txt").ToList
lines.RemoveAt(delLine - 1) ' index starts at 0 
System.IO.File.WriteAllLines("outfile.txt", lines)

Answer 2

Or You Can Use

TextFile = TextFile.Replace("You want to Delete","")

Answer 3

    'This can also be the file that you read in
    Dim str As String = "sdfkvjdfkjv" & vbCrLf & "dfsgkjhdfj" & vbCrLf & "dfkjbhhjsdbvcsdhjbvdhs" & vbCrLf & "dfksbvashjcvhjbc"

    Dim str2() As String = str.Split(vbCrLf)

    For Each s In str2
        If s.Contains("YourString") Then
            'add your line to txtbox
        Else
            'don't add your line to txtbox
        End If
    Next