Checking for empty textbox and setfocus the empty textbox

Want the command button to check if any of the many textboxes in a userform are empty.

If empty, Want the macro to

• setfocus on that textbox
• Message box (pls enter the value)

tried this

Private Sub CommandButton1_Click()

Dim ctl As Control

    
    For Each ctl In Controls
   If TypeOf ctl Is TextBox Then
      If IsNull(ctl.Value) = True Then
      ctl.SetFocus
      GoTo lastline
         
         Exit Sub
      End If
   End If
Next
lastline:        MsgBox "Data is required"
End Sub

Problem :

Doesn't setfocus the empty textbox