I'm having trouble implementing a multi-select table in my project. By multi-select table, I mean a datatable where one can select via a checkbox one or more table rows. When a JSF action is invoked, the action operates on the chosen row(s). I'm implementing this in an ugly fashion right now. Within a JSF datatable, I add a column that is composed of a boolean checkbox (h:selectBooleanCheckbox). I also bind this datatable to a UIComponent on my backing bean. When the JSF action is invoked, I go through each datatable row, checking to see if the HtmlSelectBooleanCheckbox object has been selected for that row. If it has been selected, then I add the row data onto a list. I then move on to the next row and repeat... It's ugly, but it works. However, I'm moving over to Seam and it's failing. I'm getting the following exception: javax.faces.el.EvaluationException: Cannot set value for expression '#{selectJobList.removeUIData}' to a new value of type javax.faces.component.html.HtmlDataTable | ... | ... | java.lang.IllegalStateException: No conversation context active I'm assuming this is due to the use of binding the datatable... However, I need the binding to figure out which boolean checkbox was selected. So my questions are - 1. What am I doing wrong here? 2. What is the best way of implementing a multi-select table in Seam? TIA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3965374#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...