C#

quiteSmart wrote:

I tried using the double click event of the list box to make some action based on the item that is double clicked in the listBox.

But i discovered that also if i double click on the empty part of the listBox,(not on an item) the event is still fired.

Property Value
A zero-based index of the currently selected item. A value of negative one (-1) is returned if no item is selected.

CPallini wrote:

Property Value
A zero-based index of the currently selected item. A value of negative one (-1) is returned if no item is selected.

quiteSmart wrote:

do u have another suggestion?

Sub ListBox1DoubleClick(sender As Object, e As System.EventArgs)
  Dim index As Integer
  index = listBox1.SelectedIndex
  Dim ev As System.Windows.Forms.MouseEventArgs
  ev = e
  If index <> -1 Then
    Dim rc As Rectangle
    rc =listBox1.GetItemRectangle(index)
    If rc.Contains(ev.X, ev.Y) Then 
      MsgBox("Hello")
    End If
  End If
End Sub