MSChart activeX and form_load is skipped

[vincentnl]

I am using MSchart. Dragged it onto my form, and suddenly the form_load method isn;t reached any longer.

 

How can this be?

[Nerseus]

Check a couple of things:

[*]Your event is still hooked up

[*]You're in Debug Mode (if you're testing with a breakpoint)

[*]You're setting a breakpoint right at the top of the event, not farther down (after a potential error)

[*]There are no errors in the constructor

[/list=1]

 

-Nerseus

[Roey]

Found a fix to this one as was having the same issue. There is a Q number on it with Microsoft:

 

http://support.microsoft.com/default.aspx?scid=kb;en-us;318386

 

Apperently an ActiveX control on a .Net form launched using showdialog will cause the form_load not to work. Strange but true.

 

Here's the code:

 

Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)

Const WM_SHOWWINDOW = &H18

Static m_loaded As Boolean

 

If m.Msg = WM_SHOWWINDOW Then ' The form is being loaded

If Me.Modal And Not m_loaded Then ' the form is modal and this is the first time it is being loaded

MyBase.OnLoad(New System.EventArgs())

End If

m_loaded = True ' remember we did it once

End If

MyBase.WndProc(m) ' delegate to the default window procedure

 

End Sub

 

 

QUESTION: Does anyone know what type

 

Const WM_SHOWWINDOW = &H18

 

is as I need to turn Option Strict Off to get this to work. Also if anyone can explain how this works that would help to.

 

Thanks

[vincentnl]

Thanks for your reply. As it was 7 months ago, I have worked around it, but you suspected as much.

 

Hope others will benefit from your find.

[Roey]

Were always a bit behind here in Canada