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jsfprimefacesdatatable
rashidnk
rashidnk

Reputation: 4292

p:column in p:dataTable, "sortBy" descending on the first click

The sortBy attribute of <p:column> in <p:dataTable> lets the user to sort a column ascending or descending on each click, is there anyway to sort column descending on the first click of column header. It is ascending by default.

<p:column sortBy="#{bean.col1Value}" headerText="Col Header">
   #{bean.col1Value}
</p:column>

Is there any possibility to override this <p:dataTable>'s default setting?

Upvotes: 2

Views: 5519

Answers (2)

Fritz
Fritz

Reputation: 1174

I think you can use the attribute sortFunction. I quote from the Primefaces 5.1 User Guide page 153-154

Instead of using the default sorting algorithm which uses a java comparator, you can plug-in your own sort method as well

public int sortByModel(Object car1, Object car2) {
     car2.compareTo(car1);
}

And then in your html file

<p:dataTable var="car" value="#{carBean.cars}">
<p:column sortBy="#{car.model}" sortFunction="#{carBean.sortByModel}"
headerText="Model">
<h:outputText value="#{car.model}" />
</p:column>
...more columns
</p:dataTable>

Upvotes: 2

vinod
vinod

Reputation: 1202

You need to use sortFunction="#{testBean.customSort}" and you can customized your sorting.

Upvotes: -1

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