I have a form with JSF 1.2 & RichFaces 3.3.4.
Currently I'm able to use AJAX for update value. When I update the form (by clicking element value1) I properly update element value2, but the value1, that updates the form, is submitted.
I would like to update the element value2 of the form without submitting the element value1.
It is possible?
<h:form id="formId">
<h:selectOneMenu id="value1" value="#{searchCriteria.value1}">
<f:selectItem itemLabel="---" itemValue="#{null}" />
<f:selectItem itemLabel="a" itemValue="a" />
<f:selectItem itemLabel="b" itemValue="b" />
<a4j:support event="onchange" action="#{searchCriteria.changeAction}"
reRender="value2" />
</h:selectOneMenu>
<h:selectOneMenu id="value2" value="#{searchCriteria.value2}">
<f:selectItems value="#{searchCriteria.valueList}" />
</h:selectOneMenu>
<a4j:commandButton action="#{searchCriteria.search}" value="Search"
reRender="formId" />
</h:form>
Related
I'm having a trouble with getting rid of required message.
I have a form in which I have a few fields and a button.
When I press a button there is validation that checks if required fields where filled with values if not then required message is displayed for invalid value/component.
Now I want to select a value from selectOneMenu or type something into inputText and when I do that I want the required message to dissapear without need to press the button again.
How would you do that?
I've tried to remove message with sth like this, but it doesn't seems to work:
Iterator<FacesMessage> msgIterator = FacesContext.getCurrentInstance().getMessages();
while (msgIterator.hasNext())
{
FacesMessage facesMessage = msgIterator.next();
msgIterator.remove();
}
Could you help me with that?
Here is example code:
<h:form id="mainForm">
<h:selectOneMenu required="true" id="dictionaryValueId" value="#{SomeBean.dictionarySelectedValue}">
<f:selectItem itemValue="#{null}" itemLabel="#{i18n['view.choose']}" />
<f:selectItems value="#{SomeBeanBean.dictionaryValuesMap}" var="element"
itemLabel="#{element.descripption}" itemValue="#{element.key}" />
<f:ajax event="change" execute="#this msgId" render="msgId dictionaryValueId"/>
</h:selectOneMenu>
<h:message id="msgId" style="display:none;" for="dictionaryValueId" />
...
<h:commandButton value="#{i18n['button.forward.name']}"
actionListener="#{SomeBean.forward}" >
<p:ajax process="#form" update="mainForm"/>
</h:commandButton>
I am not sure, but is not there a problem with
style="display:none;"
for
<h:message id="msgId"/>
You can wrap your message with <h:panelGroup/> and render by this panelGroup Id, this Id will be always present on your form.
<h:form id="mainForm">
<h:selectOneMenu required="true" id="dictionaryValueId" value="#{SomeBean.dictionarySelectedValue}">
<f:selectItem itemValue="#{null}" itemLabel="#{i18n['view.choose']}" />
<f:selectItems value="#{SomeBeanBean.dictionaryValuesMap}" var="element" itemLabel="#{element.descripption}" itemValue="#{element.key}" />
<f:ajax event="change" execute="#this" render="messageBundle1 dictionaryValueId"/>
</h:selectOneMenu>
<h:panelGroup id="messageBundle1">
<h:message id="msgId" style="display:none;" for="dictionaryValueId" />
</h:panelGroup>
<h:commandButton value="#{i18n['button.forward.name']}"
actionListener="#{SomeBean.forward}" >
<p:ajax process="#form" update="mainForm"/>
</h:commandButton>
</h:form>
I am trying to display a menu if a radiobutton is selected. I'm using the rendered attribute for this purpose.
Model:
private int type; // +getter+setter
View:
<h:selectOneRadio value="#{bean.type}">
<f:selectItem itemLabel="A" itemValue="1"/>
<f:selectItem itemLabel="B" itemValue="2"/>
</h:selectOneRadio>
<h:form id="formMention" rendered="#{bean.type == 1}">
<h:selectOneMenu ...>
<f:selectItems ... />
</h:selectOneMenu>
</h:form>
Nothing shows when I check A. How can I achieve this?
Normally, you'd grab ajax for this, but as you're apparently on dead JSF 1.x, which lacks ajax fanciness, you're resorted to "plain" HTML/JS as long as you don't want to introduce an ajax capable component library. One of the ways is just submitting the form outright on click of the radio button.
<h:form>
<h:selectOneRadio value="#{bean.type}" onclick="this.form.submit()">
<f:selectItem itemLabel="A" itemValue="1"/>
<f:selectItem itemLabel="B" itemValue="2"/>
</h:selectOneRadio>
</h:form>
<h:form id="formMention">
<h:selectOneMenu ... rendered="#{bean.type == 1}">
<f:selectItems ... />
</h:selectOneMenu>
</h:form>
I have a drop down list with several values and I want to show a panel only if a value has been selected
Here is the code simplified
<p:selectOneMenu id="" value="#{myBean.myElement}" >
<f:selectItem itemLabel="Choose an element itemValue="" />
<f:selectItems value="#{myBean.myElementList}" />
<p:ajax update="myPanel" listener="#{myBean.handleChange}"/>
</p:selectOneMenu>
<p:panel id="myPanel" header="My Header" style="margin-bottom:10px;" rendered="#{myBean.myElement != null}">
But this does not seem to work (it works only if I refresh manually the page).
How could you fix this ?
Since myPanel is not rendered, the component won't be in the component tree, so it cannot be updated later in the view. Use another UIContainer to wrap it like <h:panelGroup> and update this container:
<p:selectOneMenu id="" value="#{myBean.myElement}" >
<f:selectItem itemLabel="Choose an element itemValue="" />
<f:selectItems value="#{myBean.myElementList}" />
<!-- here update to foo instead of myPanel -->
<p:ajax update="foo" listener="#{myBean.handleChange}"/>
</p:selectOneMenu>
<h:panelGroup id="foo">
<p:panel id="myPanel" header="My Header" style="margin-bottom:10px;"
rendered="#{myBean.myElement != null}">
</h:panelGroup>
In my scenario i need to change attribute display type from managed bean using ajax
<h:inputText id="text1" value="#{managedBean.value}" />
<h:selectOneRadio value="#{managedBean.option}">
<f:selectItem itemValue="Yes" itemLabel="Yes" />
<f:selectItem itemValue="No" itemLabel="No" />
<f:ajax listener="#{managedBean.changeAttrDisplayType}" event="click" render="text1"/>
</h:selectOneRadio>
If i click yes in the radio button,then attribute(id=text1) will render as textbox and if i click No then attribute (id=text1) will be render as label.
Is it possible ?Please Guide me ...
Yes! this is possible! put your h:inputText and h:outputLabel in a h:panelGroup and in the ajax event rerender the h:panelGroup. Put the condition of which one you want to render in the respective rendered attribute like bellow:
<h:panelGroup id="changingPanel">
<h:outputLabel id="id1"
rendered="#{managedBean.option == 'Yes'}"
value="This is label"/>
<h:inputText id="id2" value="#{managedBean.input}"
rendered="#{managedBean.option == 'No'}" />
</h:panelGroup>
<h:selectOneRadio value="#{managedBean.option}">
<f:selectItem itemValue="Yes" itemLabel="Yes" />
<f:selectItem itemValue="No" itemLabel="No" />
<f:ajax event="click" render="changingPanel"/>
</h:selectOneRadio>
Assumed that, you want to display outputLabel when "Yes" is selected and inputText when "No" is selected.
<h:form action="" prependId="false">
<h:selectOneRadio value="#{managedBean.color}" id="color">
<f:selectItem itemValue="red" itemLabel="Color1 - Red" />
<f:selectItem itemValue="green" itemLabel="Color1 - Green" />
<f:ajax event="click" render="group1" listener="#{managedBean.renderSubQuestions}"/>
</h:selectOneRadio>
<h:panelGroup id="group1">
<h:outputLabel value=" Color Description " rendered="#{managedBean.colorRender}"></h:outputLabel>
<h:inputText rendered="#{managedBean.colorRender}"></h:inputText>
<h:selectOneRadio id="number" value="#{managedBean.integer}" rendered="#{managedBean.colorRender}" >
<f:selectItem itemValue="1" itemLabel="Number1 - 1" />
<f:selectItem itemValue="2" itemLabel="Number1 - 2" />
<f:selectItem itemValue="3" itemLabel="Number1 - 3" />
<f:ajax event="click" render="group2 " listener="#{managedBean.renderSubQuestions}"/>
</h:selectOneRadio>
</h:panelGroup>
<h:panelGroup id="group2">
<h:outputLabel value="Number Description " rendered="#{managedBean.integerRender}"></h:outputLabel>
<h:inputText rendered="#{managedBean.integerRender}"></h:inputText>
</h:panelGroup>
</h:form>
In my scenario I used nested JSF AJAX with nested rendered attribute. If I select a color based on the selection, it rendered some radio button (addition elements) with AJAX. It is working fine, but additional elements with AJAX behavior is not working for me. If I remove rendered attribute in number radio button, it is working fine. I dont know where I did mistake.
It is most likely what your ManagedBean is not in ViewScoped or SessionScoped. When you post back to the bean, you are loosing rendered states. I suggest to change for the ViewScoped one.
Not related :
You should remove the action attribute from the h:form since JSF override it.