Treeview not rendering

[AlastairP]

I have this problem driving me crazy
I have a treeview that will not render properly, I mean it does not show the border and correct size until I click in the object
I have tried all kinds of things, resize, refresh etc
I set the width to 10, then back to original and it will not render properly

Any ideas?
PS I have another treeview on the same form almost identical, and this renders fine

 

[TamarGranor]

Have you tried using the Thor Compare with Copied Object tool to see what's different about the two?

Tamar

 

[Mike Lewis]

Alternatively, try this:

Delete the bad treeview. Make a copy of the good treeview to use in place of the bad one. Gradually change the copy so as to restore the behaviour that you deleted. At each change, test the form. When the bad behaviour comes back, you will know exactly what caused the problem.

Mike

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Mike Lewis (Edinburgh, Scotland)

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[AlastairP]

Just to recap, there was nothing actually wrong with either of the treeview classes. I did not find the problem, but I put it down to there being a lot of nested containers & the firing order of resizes in the inits of the containers & objects created on the fly.
So in the container parent class, I have a property called "allowresize" and a method "resizecontainer", which prevents the containers from running multiple resizes during the init phase
In the resize event I have:

If this.allowresize=.t.
   this.resizecontainer && sets size of container
endif

In the very end of the form init I call the resizes in the correct sequence so each one fire only once. Then set the allowresize to .t. for user interaction. I have noticed the form load time is significantly quicker.

I solved the issue of the treeview by adding a timer (20ms) to the form class that re-calls resize on the treeviews at the end of all the init events.