p:dataTable rowEdit doesn't update row object [duplicate]

问题

This question already has an answer here:

How and when should I load the model from database for h:dataTable (1 answer)

Closed 4 years ago.

I'm trying to edit rows on datatable using rowEdit mode but it doesn't work for me.

Here is the rowEdit event :

<p:ajax event="rowEdit"
        listener="#{saisirHeuresForm.updateMyRow}" 
        update=":saisirHeuresForm:messages"/>

And the managedBean corresponding method :

public void updateMyRow(RowEditEvent event) {
    event.getObject();
}

The event.getObject() method returns the object corresponding to the row which is edited but without any property modification.

Has someone any idea about this problem ?

Thanks in advance for your help

回答1:

Finally I found what I did wrong. The method getListItems() was all the time loading from DB so the items I modified were directly reloaded from DB and in this case, without the modifcation I did.

Hope it can help someone

来源：https://stackoverflow.com/questions/31803791/pdatatable-rowedit-doesnt-update-row-object