TreeView multiselection: Independency between parent and child "selected" states

[pamtbaau]

Currently, when using a TreeView with multiselection mode, when the parent's "selected" state changes, its children's "selected" state changes with it. Visa versa, when a child's "selected" state changes, the parent's state may change.

Is there a way/option to change the default behaviour and make the "selected" state of child and parent independent of each other?

[bdlukaa]

I don't think this is how a TreeView should work. The state of the parent NEEDS to reflect the state of the children. If the parent is marked, the users will assume that all the children are marked as well.

For independent relations, you may need to create a custom widget.

[pamtbaau]

I understand the visibility aspect of it, but in my use-case (a report of financial expenses) a selected parent has a different meaning.

In below example, the selected parent means: Show in the Expense report, the total expenses of all selected children combined, but do not show the children separately.

Expenses
  Mortgage
  x Tax
     x Federal tax
     x State tax
       Local tax

While the following example means: "Show me each selected expense category separately"

Expenses
  Mortgage
  Tax
    x Federal tax
    x State tax
    x Local tax

Any suggestions?