ListBox can be in Edit

In order for the items contained in the ListBox can be edited, it would require a special way by combining it with the TextBox. Here's how:

1. Add 1 ListBox, then 1 TextBox (property Visible = False) to the Form.

1. Type this code in the event ListBox1_MouseDoubleClick:
   Dim i As Integer = ListBox1.SelectedIndex
   If i < 0 Then Exit Sub
   
   With TextBox1
     .Top = ListBox1.GetItemRectangle(i).Top + ListBox1.Top
     .Left = ListBox1.GetItemRectangle(i).Left + ListBox1.Left
   
     .Text = ListBox1.Items(i)
     .Visible = True
     .Focus()
   End With


2. Type This code in event TextBox1_KeyPress :
   If e.KeyChar = Chr(Keys.Enter) Then
     ListBox1.Items(ListBox1.SelectedIndex) = TextBox1.Text
     TextBox1.Visible = False
   ElseIf e.KeyChar = Chr(Keys.Escape) Then
     TextBox1.Visible = False
   End If


3. Type This code in event TextBox1_LostFocus :
   TextBox1.Visible = False


4. For the experiment, you can fill out the items by typing in this code in event Form1_Load :
   Dim i As Integer
   For i = 1 To 100
     ListBox1.Items.Add("Item ke " & i)
   Next

Run the application, and then double-click the item to be edited.