Bootstrap Multi Select requires persistable entity

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When using the Bootstrap Multi Select with a non-persistable entity the modeler shows an error saying: The entity xxx cannot be used here, because it's non-persistable. Is there a work around?
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2 answers
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We dropped using this widget, mostly because of performance issues, and use a reference set selector instead with a listview on the select page. User experience is virtually the same: a popup with checkboxes and search functionality. To show 'object X selected', '3 selected', 'all selected' etc we use the custom string widget and some custom styling.

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As a workaround you can use persistable entities and make sure that you never commit them, or dispose them afterwards.

Hope this helps

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