Infralution Support

[CNET Channel]

Object reference not set to an instance of an object.

at Infralution.Controls.VirtualTree.Row.UpdateChildrenNoReindex(Boolean reloadChildren, Boolean recursive)
at Infralution.Controls.VirtualTree.Row.UpdateChildren(Boolean reloadChildren, Boolean recursive)

[CNET Channel]

I'm trying to perform continiuos operation using backgroundworker class.

In GetChildren event I do the following:

e.Children = new string[] { "Loading..." };
Run BGWorker

and after worker completes this operation I call Row.UpdateChildren(true, false) in UI thread and again in GetChildren event assing already loaded children collection, but very often tree does't redraw child nodes until I manualy mouse click inside the tree and sometimes I get described above exception.

[Infralution]

I suspect this is a sychnronization issue - and these can be very difficult to pin down. If you can email support@infralution.com a zipped sample project that illustrates the problem we will take a look at it.
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Infralution Support