You wrote:
> Prior to previous post, I added .Visible=True statements to the cloning
> loop.
That's good, but it doesn't prove that they're not invisible. Their Visible
property might get turned off later; or they might have a parent (or further
ancestor) whose .Visible property is false, in which case their own Visible
property doesn't matter at all.
> Again, all Canvases are doing the right graphical stuff, as addressed from
> Methods.
I'm not sure I understand what you mean by this. Do you mean that if you have
some button somewhere, that draws directly to (say) the 5th canvas's Graphics
property, then you see this drawing?
(That would indeed be damning evidence for the Paint event...)
> If I instantiate any Canvas in Window1 by dragging it in (anywhere), then
> that instance triggers Paint and refreshes. It seems to me that that proves
> that this cannot be a matter of malpositioning, since I use the same code to
> position and size the canvases, regardless of whether they were dragged in
> or cloned.
Well, that supports it, but doesn't prove it. A good proof would be to put
something in the MouseMove event (like a Speak command or System.DebugLog),
reporting the index number, and then show that these non-painting canvases
nonetheless respond when you wave your mouse over them. Or, do the same thing
via the HelpTag property.
Clearly there is SOMETHING going wrong in your code, because when I try to
reproduce the problem in a simple app, it works fine. I put a small canvas on
a window, gave it an index of 0, put this in the Window.Open event:
for i As Integer = 1 to 5
Dim c As Canvas = New Canvas1
c.Top = i*60
c.Left = i*20
next
and put in the canvas's Paint event:
g.FillOval 0, 0, g.width, g.height
and when I run, I see six ovals, exactly as one would expect. Does this simple
test work for you? If so, then you need to keep digging to find out what's
different about your real app that is causing these canvases to be invisible
(since that's the only thing I can think of that would prevent Paint from
firing).
HTH,
- Joe
--
Joe Strout -- [EMAIL PROTECTED]
Verified Express, LLC "Making the Internet a Better Place"
http://www.verex.com
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