Need help updating valuesource of generated components on a table

Support
#1

I have a table and I have generated 2 combo boxes … great… but now if one combo box changes I need to change the value source of the combo box beside it. How can I achieve this in a table. I’m using Jmix 1.5.
thank you.

#3

Hello Eduardo!

Could you clarify do you need to change options in dropdown list of ComboBox in second column while changing value in ComboBox in the first column?

#4

Yes one of the comboxes has a query that is dependent on the value that the other combo box beside it has. both of these combo boxes are generated. I have no idea how to pull the right combo box from the right record and change its values after running a query from the value of the other one.

#5

If your columns are bound with properties in an entity, you can rely on value of the changed property.

Lets say, there is a “country” and “city” columns with generated ComboBox. If country changed we should change options in “city” ComboBox.

After the user selected “country 1”, a table is repainted and column generators are invoked again (several times). Thus in “city” column generator we should check the “country” value that is saved in entity instance.

For example:

@Install(to = "locationsTable.city", subject = "columnGenerator")
protected Component locationTableCityColumnGenerator(final Location location) {
    ComboBox<String> component = uiComponents.create(ComboBox.NAME);

    InstanceContainer<Location> instanceContainer = locationsTable.getInstanceContainer(location);
    component.setValueSource(new ContainerValueSource<>(instanceContainer, "city"));

    // Get "country" value and load options
    component.setOptionsList(getOptionsFor(location.getCountry()));
    return component;
}

protected List<String> getOptionsFor(String country) {
    // ...
}
1 Like
#6

Works !!! Thank you so much for solving my problem!