Multi-Line TextBox => List (Of String)

[jsurpless]

Hi

I was wondering what the best way would be to convert the text in a multi-line text box to a List (Of String)?

Basically, I want to detect 'carriage returns' and translate the text btw to a list entry...

For instance,

String1
String2
String3

should =>

List(1) = String1
List(2) = String2
List(3) = String3

Thanks!

 

[Raven65]

Dim myList As New List(Of String)
  For Each line In Me.TextBox1.Text.Split(CChar(vbCrLf))
    If line.Trim.Length > 0 Then
      myList.Add(line.ToString)
    End If
  Next

Should do what your looking for. I put some logic in there that will prevent the adding of blank lines to the list that you may or may not find useful...

 

[JuggaloBrotha]

StringList.AddRange(YourString.Split(vbcrlf), StringSplitOptions.RemoveEmptyEntries)

Actually forget that code use:

YourStringList.AddRange(TheTextBox.Lines)

 

[jsurpless]

Awesome... that works fantastically... one more question... how would you to the reverse?

Thanks!

 

[JuggaloBrotha]

Dim TempString As String
For x As integer = YourList.Count - 1I To 0I Step -1I
  TempString &= YourList(x)
  If x <> 0I Then TempString &= Environment.NewLine
Next x
TheTextBox.Text = TempString

If there's a lot of items (more than 5) you should use a StringBuilder instead of a String

 

[JohnH]

TheTextBox.Text = String.Join(vbNewLine, YourList.ToArray)

 

[jsurpless]

Awesome!

Thanks a lot!