valuechangelistener

问题 In my page I have selectonemenu and I have noticed that when I click the pagination of datatable, valueChangeListener method is getting invoked without actually changing values or options in selectonemenu. How is this happening and how could I prevent this from happening as I need to invoke valueChangeListener method only if user changes values in selectonemenu. Thanks and appreciate any help. Regards Here is my code for selectonemenu Update1 <ice:selectOneMenu value="#{list.selectedItem}"

问题 I have a JSF 2.2 form that contains one <h:selectOneMenu> , inputs and 4 buttons to call CRUD methods. In order to achieve the binding, I used a valueChangeListener so that when I chose an id from the <h:selectOneMenu> , I call a method which updates the object linked to the inputs. The problem is that the inputs don't change their value. The form <h:selectOneMenu value="#{avocatBurController.numProf}" valueChangeListener="#{avocatBurController.handelValueCahnge}" onchange="submit()"> <f

问题 I have a JSF 2.2 form that contains one <h:selectOneMenu> , inputs and 4 buttons to call CRUD methods. In order to achieve the binding, I used a valueChangeListener so that when I chose an id from the <h:selectOneMenu> , I call a method which updates the object linked to the inputs. The problem is that the inputs don't change their value. The form <h:selectOneMenu value="#{avocatBurController.numProf}" valueChangeListener="#{avocatBurController.handelValueCahnge}" onchange="submit()"> <f

问题 How would you detect a change of value of a Datepicker while using SwiftUI and Combine? I need to invoke a method whenever the datepicker wheel is moved, to update a Text and a Slider. I have looked for specific methods to identify the value change (using UIKit it was possible to associate an action to an event), but apparently I haven't found anything useful in the documentation (I've tried the onTapGesture methods, but that's not what I want, since it forces the user to tap the picker to

问题 I'm using MyFaces 1.1. I have two <h:selectOneMenu> s dropdowns which each point to same valueChangeListener method. <h:selectOneMenu id="d1" value="#{mybean.selectedChannel1}" onchange="submit()" valueChangeListener="#{myform.channelValuechange}"> <f:selectItems value="#{mybean.channelList}"/> </h:selectOneMenu> <h:selectOneMenu id="d2" value="#{mybean.selectedChannel2}" onchange="submit()" valueChangeListener="#{myform.channelValuechange}"> <f:selectItems value="#{mybean.channelList}"/> </h

问题 I have the following dropdown which list couple of cars, I have it so that it stores the value of selected item in a backbean variable and an event is fired so other dropdowns would fill up according to the selected value of this dropdown control as below: <Td> <h:selectOneMenu id="combocarList" value="#{customerBean.selectedcar}" styleClass="comboStyle" valueChangeListener="#{customerBean.loadothercombos}" onchange="document.forms[0].submit()" > <f:selectItem itemLabel="-----------Select----

问题 I`m trying to add addValueChangeHandler function to a TextBox inside a flexTable. But when I add this code: int rowIndex = tableImages.getCellForEvent(event).getRowIndex(); I use this method to know the current row in case of a ClickEvent. the method is not acceptable for ValueChangeEvent, so how can I know what is the row Index for the changed cell? Thank you. 回答1: Well yes, because it needs a Cell itself, not a TextBox or event value. What you can do, is: Get the event Source via event

问题 This question already has an answer here : <h:form> within <ui:repeat> not entirely working, only the last <h:form> is processed (1 answer) Closed 4 years ago . I'm using JSF and Glassfish. I have in a ui:repeat several h:inputtextarea where I have a valuechange Listener. The problem is that the valuechangelistener only fires for the last component. here is my code. The answerhandler return a list of Answerentities (JPA) which define the content. The answerhandler itself is a ManagedBean

问题 Language Used: Swift 2.3 For example I have a model called Doctor class Doctor { var name = "" var number = 123 init(name:String, number:String) { self.name = name self.number = number } } And in another class I made it into an array class SomeClass { var doctors:[Doctor] = [ Doctor(name: "Matt Smith", number: 11), Doctor(name: "David Tennant", number: 10), Doctor(name: "Peter Capaldi", number: 12) ] } And then for some reason I decide to change the value of index #2 class SomeClass { ... //

问题 I am calling valueChangeListener on a <h:selectBooleanCheckbox> which is inside a dataTable. and that dataTable is again inside another(outer) dataTable. In the valueChangeListener method I want the instance object of outer dataTable. Is there any way to get the object of outer dataTable instance? EX: <h:panelGroup id="panelId"> <p:dataTable id="outerDatatable" var="supplier" value="bean.supplierList"> <p:column> <f:facet name="header"> <h:outputText value="Suppliers" /> </f:facet> <h