Userform displaying multiple worksheets

Hi guys,

I have an excel table that contains many worksheets. I am trying to make a userform, which displays all the worksheet and let's you select which worksheet you want to open. So the userform should consist of listbox and button. I've made the listbox to display all the worksheet, but can't manage the button. Please help ...

Here is the listbox configurationi:

Private Sub UserForm_Initialize()

Dim ws As Worksheet

Me.ListBox1.Clear

For Each ws In ActiveWorkbook.Worksheets

    Me.ListBox1.AddItem ws.Name

Next ws

End Sub