数据表中的primefaces selectonemenu和f：selectonemenu

Question

I am using primefaces 3.5 I have ap:selectonemenu in one of the column in datatable. and also I have a submit button on another column of same datatable. When I do a submit the row will get removed. Here when I am selecting 'Other' then do a submit action and updating the form, the p:selectonemenu items in other rows is getting 'other' as first value. What is way to set 'other' to last value everytime

 <p:column headerText="Buyer Response" style="white-space:pre-line;">
                            <p:selectOneMenu value="#{buyerInProcessBean.subject}"
                                id="buyerResponseId" >
                                <f:selectItems 
                                    value="#{buyerInProcessBean.subjectMap[trans.decisionrule.ruleId]}"
                                    var="subject" itemLabel="#{subject}" itemValue="#{subject}"></f:selectItems>
                                <f:selectItem itemLabel="Other" itemValue="Other" ></f:selectItem>
                            </p:selectOneMenu>
                        </p:column>

Answer 1

Since you have

<p:selectOneMenu value="#{buyerInProcessBean.subject}">

The subject is shared between all rows, of course, other select menus will have the same value as the one selected (other in your case). For that, I suggest a simple fix, you have to move the subject attribute to the objects you are iterating on.

Another fix, is to set the subject attribute to "Other" once your method executed on submit is finished. But with this, even the changed selectmenu will lose "Other" as value.

So in conclusion, you have to change your logic, so that subject won't be shared between rows