Ajax update doesn't work, when using filter on

问题:

I have a datable which includes the filter feature of primefaces. Some operations can be done on the table (e.g. edit). The datable will be updated after the user's operation is completed using ajax. It updates the table directly and works well, if I don't filter the datatable, unfortunately not if I use it and edit it.

That's how my datatable looks like:

    <p:dataTable id="dataTable" var="row"
                value="#{bean.value}"
                filteredValue="#{bean.filteredValue}"
                paginator="true" rows="25" paginatorPosition="bottom"
                rowKey="${row.id}"
                paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}"
                editable="true">

and the Button which triggers the update

<p:commandButton value="Save"
                        actionListener="#{bean.save}"
                        update=":form"/>

回答1:

After updating datatable you have to invoke it's client side filter() method.

<p:dataTable widgetVar="dataTableWidgetVar" id="dataTable" var="row"
             value="#{bean.value}"
             filteredValue="#{bean.filteredValue}"
             paginator="true" rows="25" paginatorPosition="bottom"
             rowKey="${row.id}"
             editable="true">

<p:commandButton value="Save"
                 actionListener="#{bean.save}"
                 update=":form"
                 oncomplete="PF('dataTableWidgetVar').filter()"/>

For PrimeFaces versions older than 5, you should use

<p:commandButton value="Save"
                 actionListener="#{bean.save}"
                 update=":form"
                 oncomplete="dataTableWidgetVar.filter()"/>

回答2:

Adding answer for Primefaces 5.x , since they changed the way for calling widget var:

Almost same as Kerem Baydogan's answer but with a little modification :

<p:commandButton value="Save"
                 actionListener="#{bean.save}"
                 update="@form"
                 oncomplete="PF('dataTableWidgetVar').filter()"/>

Or you can clear filters at all with :

<p:commandButton value="Save"
                 actionListener="#{bean.save}"
                 update="@form"
                 oncomplete="PF('dataTableWidgetVar').clearFilters()"/>

回答3:

For the version of primefaces greater or equal to 5, you can use this block of code, it works very well

<p:dataTable var="page" value="#{yourBean.allData}" widgetVar="yourWidgetVarName"/>

<p:commandButton value="delete"
                 actionListener="#{yourBean.delete}"
                 update="@form"
                 oncomplete="PF('yourWidgetVarName').filter()"/>

回答4:

If you are using the version 5 of primefaces just make the data class that rapresents the single data row, to implements Serializable