Tatu Lund

I think another workaround is to use "--release 8" command line parameter in compilation.

We need to investigate why it was left out. HighCharts documentation says the following. The interesting note is the one about IE. In Vaadin 7 we supported old IE browsers...

Copied from https://github.com/vaadin/framework/issues/11736

The Tree component is missing, but it is possible to use single column TreeGrid in many use cases. There are couple of more fine tuned version of single column TreeGrid...

Possibly related to https://stackoverflow.com/questions/73846068/vaadin-23-typeerror-error-loading-dynamically-imported-module

The current workaround in Java project https://cookbook.vaadin.com/grid-conditional-select

> dlg.addAttachListener(ae -> ok.focus()); Instead of attach listener you should probably try dlg.addOpenedChangedListener(openEvent -> ... )

The working version is this: ``` @Route(value = "multi-dialog", layout = MainLayout.class) public class MultiComboDialogView extends HorizontalLayout { public MultiComboDialogView() { setPadding(true); setJustifyContentMode(JustifyContentMode.CENTER); setAlignItems(Alignment.CENTER); setSizeFull(); MultiSelectComboBox mailTo = new MultiSelectComboBox(...

One alternative would be to use TreeComboBox https://vaadin.com/directory/component/treecombobox This is a ComboBox like component built using TreeDataProvider and using Tree in the drop down to organize items hierarchically.

@mijutu could you file a ticket to github.com/vaadin/flow instead, as this issue tracker does not cover Vaadin 24.