"Bernhard Kohlhaas" <
[hidden email]> wrote in message
news:
[hidden email]...
> When I save my image with an open class browser and the categories tab
> displayed in the middle pane, and then restart the image, only the
> category root node 'All' is shown in that browser.
>
The tree view opens collapsed. Double click 'All' and the categories will be
restored. Essentially what happens is that the tree is expanded only to the
extent necessary to display the selection. If the selection is 'All' then no
expansion is necessary. Since the tree has no expand/contract buttons on the
root node (i.e. hasLinesAtRoot = false) it appears that the categories have
disappeared, whereas in fact they are just hiding.
In general we try to ensure that views saved in the image will reappear
exactly as they were when the image was saved. However since we use native
controls, it is sometimes infeasible or too expensive to do this. We
considered that restoring the precise state of the tree view in terms of the
expanded/collapsed state of all the nodes fitted into the "too expensive"
category. I think we probably made a mistake, though, in not expanding the
roots of a tree with the 'hasLinesAtRoot' option turned off (#1454).
Regards
Blair
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