Validate controls MDI Form

I have a problem with validating my textboxes.

I have 3 forms: - 1 MDI and 2 MDI Childs

Textboxes on one of the MDI Childs need to be validated. Everything works fine by using the Validate procedure as long as I stay on that MDI Child.

VB Code:

Private Sub txtFCS_Validate(Index As Integer, KeepFocus As Boolean)
'Some code here
KeepFocus = True
MsgBox "Wrong Value"
End Sub

As soon as I access the menu from the MDI form or I do click on the other MDI Child my textboxes don't get validated anymore.

Any idea how to fix this?

I hope this helps you. I just added a couple of lines of code...

(Yet I wonder why you have the KeepFocus argument and I only have the Cancel one)

Here is the code I used:

VB Code:

Private Sub txtFCS_LostFocus(Index As Integer)
 txtFCS_Validate Index, False
End Sub
 
Private Sub txtFCS_Validate(Index As Integer, Cancel As Boolean)
 'Your condition here instead of "Not IsNumeric(txtFCS(Index))"
 If Not IsNumeric(txtFCS(Index)) Then
  Cancel = True
  MsgBox "Wrong Value"
  
  Me.SetFocus
  txtFCS(Index).SetFocus
 End If
End Sub

This code works, problem starts occuring as soon as I add a menu item to the form parent.

If I click an item in the menu, it does not validate the control, it just executes the code under the menu_click event.

If I add a Label to the empty form, and add a Mousedown event.

VB Code:

Private Sub Label1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Me.Label1.Caption = Me.Label1.Caption + 1
End Sub

The MouseDown event gets executed before the Validate event from the form which just lost focus.

Any workaround?

You mean something like this?

Oops... Sorry, wrong attachment.