Hello Robert,
I am new to JSF. I am trying to use tomahwak t:treeCheckboxtag. Can you
give or point to a detailed example / steps how to use t:treeCheckbox
component.
Thanks,
Cham
RRobertMM wrote:
>
> Hello,
>
> Because I had a big struggle for two days with the tree2 component and
> selectbooleancheckboxes, I like to share my information with other people.
>
> What I wanted was a server-side tree2 with selectbooleancheckboxen. If a
> checkbox is checked, all direct childs under this node should also be
> selected. I was able to update the ''checked'' values in the nodes in the
> tree, but to get the checkboxes updated in the browser was a big problem
> for me.
>
> Somehow you want to access the HtmlSelectBooleanCheckbox component that
> belongs to the node. In JSF it's possible to do a server side walk through
> the components of your website.
> I was able to find the tree2 component but not any of the
> selectbooleancheckboxen in this tree.
>
> If you choose a valueChangeListener you easily can access the check box
> and uncheck the checkbox by using the code:
>
> public void function_name_listener (ValueChangeEvent event) {
> HtmlSelectBooleanCheckbox sender =
> (HtmlSelectBooleanCheckbox)event.getComponent();
> sender.setSelected(false);
> }
>
> But this only works for one checkbox, the one you checked or unchecked.
>
> Finally I found a piece of useful code in the function encodeCurrentNode()
> in org.apache.myfaces.custom.tree2.HtmlTreeRenderer.java.
>
> Let's take a example tree structure and facet:
>
> root
> one
> two
> three
>
> So if a checkbox from "one" is selected all "two" nodes under this "one"
> will also be selected.
>
>
> <f:facet name="two">
> <h:panelGroup>
> <t:selectBooleanCheckbox id="man"
> onchange="common_timeoutSubmitForm(this.form, '');"
> title="#{node.nodePath}" value="#{node.checked}"
> valueChangeListener=" {treeBacking.checkboxChangeManager}"/>
>
> <h:outputText value="#{node.description}"/>
> </h:panelGroup>
> </f:facet>
>
> If the name of your tree2 component is "serverTree" and it placed in form
> "form1" you can
> get the HtmlTree with:
>
> HtmlTree tree =
> (HtmlTree)FacesContext.getCurrentInstance().getViewRoot().findComponent("form1:serverTree");
>
>
> //set the node from which you want to obtain the
> HtmlSelectBooleanCheckbox component
> tree.setNodeId("0:0:0"); TreeNode node = tree.getNode();
>
> // get the panelGroup component of this node
> UIComponent nodeTypeFacet = tree.getFacet(node.getType());
>
> // get the HtmlSelectBooleanCheckbox from child one of
> "nodeTypeFacet"
> HtmlSelectBooleanCheckbox ui =
> (HtmlSelectBooleanCheckbox)nodeTypeFacet.getChildren().get(0);
> ui.setSelected(true);
>
> And in your browser the checkbox has been updated.
>
> Does anyone know another way to get this done by built in function in
> tree2?
>
> Regards,
> Robert
>
--
View this message in context:
http://www.nabble.com/Tree2-selectbooleancheckboxes--hint-tp11265216p20076600.html
Sent from the MyFaces - Users mailing list archive at Nabble.com.
