Hello team,
I'm receiving this exception after putting a PreviewController into two different hosts in winforms:
Below is the example code:
elementHost1.Child = new PreviewControl(doc1, viewId);
elementHost2.Child = new PreviewControl(doc2, viewId);
I also tried this and it failed:
PreviewControl control = new PreviewControl(doc, viewId);
elementHost1.Child = control;
elementHost2.Child = control;
However, if I only have one host active, it works.
Any suggestions on how to solve this? Thanks!
RTFM, please.
The documentation on the PreviewControl clearly states:
https://www.revitapidocs.com/2020/50112279-5c9d-0351-bbd1-698e76be9e36.htm
Presents a preview control to browse the Revit model.
Remarks
The dialog or form or window host this preview control must be modal. The view can be any graphical view but not a non-graphical view. And only one can be active. The view can be manipulated by embedded view cube and the visibility and graphical settings set on the view will be evident in the preview control.
That is pretty clear, isn't it?
You are absolutely correct, it should indeed.
Please submit a minimal reproducible case that I can pass on to the development team:
https://thebuildingcoder.typepad.com/blog/about-the-author.html#1b
Afaik, they say that internal exceptions should never make it to the outside world, e.g., an external third-party Revit add-in.
As you have noted, though, that does not always hold true...
Since using two preview controller does not work, I plan to create two new view instead. However, I can't see to find a way to move and resize the view through the api.
I would like to take this:
and move it into its own tab and resize it like so:
Would that be possible? Thanks!
Are you saying that you can do that manually in the user interface, and you would like to know whether the same can be achieved programmatically? I am not aware of any programmatic control via the Revit API to layout the user interface views.
No + Yes
