Use a combobox to create a new item

answered 2017-10-12 16:59:51 +0800

ajamardo
41 ● 4

I found a hack for this, even I think there should be a better solution. Anyway, I'll write it here, so I may get some feedback.

Given the combobox:

<combobox hflex="1" selectedItem="@save(vmApp.selectedModel)" model="@load(vmApp.model)" onChange="@command('createActivitySite', event=event)" autodrop="true" autocomplete="true" >
    <template name="model" var="comboItem">
        <comboitem hflex="1" label="@load(comboItem.getColumn('name').value)" />
    </template>
</combobox>

And the events are based on the onChange event. In case there is an onChange and not selected item, I create a new one, as:

public void createActivitySite(@BindingParam("event") InputEvent e){
    if (getSelectedModel()==null){
        // if selected model is null, means that we have to create a new record
        // Creation of the new record code
    } else {
        // that means that the on change is based on a selection of an existing item
        // set the item with the selected model
    }
    BindUtils.postGlobalCommand(null, null, "addSite", args);
}