Listbox Tutorial - Add, Remove Item, Save, Reload List Visual Basic {VB.net}

Listbox Tutorial - Source Code

Codes:

Public Class Form1

Private Sub cmdAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAdd.Click
lb1.Items.Add(tb1.Text)
lb1.SelectedIndex = lb1.SelectedIndex + 1
End Sub

Private Sub cmdRem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdRem.Click
lb1.Items.Remove(lb1.SelectedItem)
End Sub

Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
IO.Directory.CreateDirectory("C:\Test")
Dim w As New IO.StreamWriter("C:\Test\test.txt")
Dim i As Integer
For i = 0 To lb1.Items.Count - 1
w.WriteLine(lb1.Items.Item(i))
Next
w.Close()
End Sub

Private Sub cmdLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdLoad.Click
Dim r As New IO.StreamReader("C:\Test\test.txt")
While (r.Peek() > -1)
lb1.Items.Add(r.ReadLine)
End While
r.Close()
End Sub

End Class
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Here is the video tutorial: