Reputation: 3015
I have a list of users in a table and with disabled Delete button. I need to enable the Delete button when I select the row in the table. How can I do this?
<p:dataTable value="#{userBean.patients}" var="item"
selectionMode="single" rowKey="#{item.id}"
selection="#{userBean.selected}"
onRowSelected="deleteButton.disabled='false';"> // HOW TO WRITE THIS EVENT CORRECTLY?????
// columns
</p:dataTable>
//This button must be enable after I click on any table row
<p:commandButton id="deleteButton" value="Delete" disabled="true" />
Maybe, I need to use onRowClick event. I dont know the name of this event
Upvotes: 2
Views: 13631
Reputation: 3015
Thanks for jsfviky71 ! I write:
<h:form id="form">
<p:dataTable value="#{bean.patients}" var="item"
selectionMode="single" rowKey="#{item.id}"
selection="#{bean.selected}" >
<p:ajax event="rowSelect" update=":form:deleteButton" listener="#{bean.onRowSelect}" />
// data in rows
</p:dataTable>
<p:commandButton id="deleteButton" value="Delete" disabled="#{bean.disabled}"/>
And in my bean:
private Boolean disabled = true;
// getter and setter
public void onRowSelect(SelectEvent event) {
disabled = false;
}
Hope this will help to others
Upvotes: 5
Reputation: 183
One solution could be using
<p:ajax event="rowSelect" update=":deleteButton" listener="#{bean.someListener}" />
inside datatable.
This catches the row selection event, calls a listener and updates the button.
Now you could define the listener in the backing bean that just updates the value of a boolean instance variable, that reflects the disabled/enabled status of the button in the view:
<p:commandButton id="deleteButton" value="Delete" disabled="#{bean.selectedBoolean}" />
You can take a look at primefaces showcase for a similar scenario:
http://www.primefaces.org/showcase/ui/datatableRowSelectionInstant.jsf
Hope this helps.
Upvotes: 4