Trigger/activate the RowEditor from bean for a primefaces In-Cell editing enabled p:dataTable

If you have only one data table in the facelet try to use this

oncomplete="jQuery('.ui-datatable-data tr').last().find('span.ui-icon-pencil').each(function(){jQuery(this).click()});

Add this to the command button. This should work.

I used the execute(..) method of class RequestContext in my create method. This allowed me to first calculate the index of the row to go into edit mode and to include it dynamically in the javascript:

RequestContext.getCurrentInstance().execute("jQuery('span.ui-icon-pencil').eq(" + rowToEditIndex + ").each(function(){jQuery(this).click()});");

Hope this helps.