I have a viewmodel with a property which is bound ...

# tornadofx

[melatonina]

I have a viewmodel with a property which is bound to a (possibly mutiple) selection in a ListView. The property is bound like this:

selectionViewModel.indices.bind(selectionModel.selectedIndices) {
    MyKindOfIndex(it)
}

This is causing all sorts of problems. If I select few items in sequence in the listview, then I select an item before them, I get an exception. If I update the observable list that is used as items list of the listview, the selection is messed up.
Is what I'm doing inherently wrong? Is there a better way?

[Marshall]

Hmm...I would need to see more of the code

[Marshall]

but I'm willing to bet you just can't bind like that

[Marshall]

you would need to do something like "onChange { selectionModel.select(it)) }"

[melatonina]

I guess so, even if I don't understand the reason. I ended up saving the selection, deselecting, operating on the backing list and reselecting. Now I'm in the process of switching to a custom control.

[melatonina]

Thanks for the feedback.

[Marshall]

that sounds about right

[Marshall]

I know I have done things like reordered the observable list backing a table and had to reselect the previously selected elements