DataModel must implement org.primefaces.model.SelectableDataModel when selection is enabled

Question

I was trying to implement one DataTable Editable with RowSelection enabled.

But it is throwing out an exception:

DataModel must implement org.

Answer 1

There are two solutions for this problem:

1. Adding rowKey, selection and selectionMode attributes to dataTable
2. Implementing SelectableDataModel interface and extending a DataModel like ListDataModel for filling the dataTable

First one is Simpler. Adding rowKey="#{myEntity.carID}" to your p:dataTable should solve your problem