AdvCheckedTreeView - Possible Display Bug...

VCL TMS VCL UI Pack
1
My application uses TAdvCheckedTreeView. On my machine I have an instance that displays some text incorrectly: on a client's machine the same instance gives an "Argument out of range" error.

Here's a video that explains the error:

https://www.screencast.com/t/c1RxIKCZjZD

And here is a link to the source code of the test example.

https://www.dropbox.com/s/m4rf5t8hgv8c3xl/AdvCheckedTreeView-Characters.zip?dl=0

Hope you can shed some light on the issue!

Thanks - Steve
2

I should also say I'm using TAdvCheckedTreeView version 1.0.1.1 and Delphi Seattle. The error only shows up in 32 bit mode, not 64 bit mode.

3

....seen this error in TAdvTreeview in the past under Delphi Berlin. In the last Versions the error is gone.

4

I've just updated everything. The version of TAdvCheckedTreeView hasn't changed (i.e. 1.0.1.1) and the error is still present. 

5

We could reproduce this and we're investigating. It appears to be related to the ExpandAll call (not sure why you do this though as in this case there aren't child nodes?)

6

Thanks Bruno - the "Argument out of Range" error occurred on a 64 bit Windows machine.


Note: in my real application there are child nodes. This was just for illustrative purposes.
7

I've investigated further. It seems the "expand" commands don't work inside the "BeginUpdate" and "EndUpdate" sections.


In this example I've added child nodes:

https://www.dropbox.com/s/g1lbqnb02pfy6os/AdvCheckedTreeView-Expand-All.zip?dl=0

The d.expand(true) doesn't work.
8

I overlooked it but expand/collaps calls should indeed not be within a BeginUpdate/EndUpdate block.