Why do you want to insert your treeTable on a DataTable ?
The treeTable component do it for you :
<x:tree id="tree" value="#{detailPerspectiveIntervenantTree}"
var="composite"
styleClass="tree"
nodeClass="treenode"
headerClass="treeHeader"
footerClass="treeFooter"
rowClasses="a, b"
columnClasses="col1, col2"
selectedNodeClass="treenodeSelected"
expandRoot="true">
<h:column>
<f:facet name="header">
<h:outputText value="Nom" />
</f:facet>
<h:outputText value="#{composite.nom}" />
</h:column>
<x:treeColumn>
<f:facet name="header">
<h:outputText value="Prenom" />
</f:facet>
<h:outputText value="#{composite.prenom}" />
</x:treeColumn>
<h:column>
<f:facet name="header">
<h:outputText value="Age" />
</f:facet>
<h:outputText value="#{composite.age}" />
</h:column>
<f:facet name="footer">
<h:outputText value="Footer" />
</f:facet>
</x:tree>
On this exemple, the treeTable make a table with 3 columns. The tree is insert
on the second column.
Selon Nikita Shah <[EMAIL PROTECTED]>:
-> Hello Sebastein,
->
-> Did you have a workaround for the problem you were facing of null child..?
-> I am also using the MyFaces treeTable component. I have a list of tasks
-> and their subtasks. I want to display task as the root node and sub-tasks
-> as its children.
->
-> Following is my jsp page -
->
-> <t:dataTable id="taskTable" styleClass="taskTable"
-> rowClasses="taskTable_Row1,taskTable_Row2" var="task"
-> columnClasses="task_nodeColumn,task_groupColumn,task_weightColumn"
-> value="#{projectLeaf.tasks}">
->
-> <t:column>
-> <t:tree id="tree" value="#{task.subTaskTree}"
-> var="treeItem" expandRoot="true">
-> <t:treeColumn>
-> <f:facet name="header">
-> <h:outputText value="Header 2" />
-> </f:facet>
-> <h:outputText value="#{treeItem.name}" />
-> </t:treeColumn>
->
-> </t:tree>
-> </t:column>
-> <t:column>
-> <f:verbatim><b>Participants</b><br></f:verbatim>
-> </t:column>
-> </t:dataTable>
->
-> The bean method is as below -
->
-> public DefaultTreeModel getSubTaskTree()
-> {
-> DefaultMutableTreeNode root = new DefaultMutableTreeNode(new
-> Task(1,"root"));
-> DefaultMutableTreeNode a = new DefaultMutableTreeNode(new Task(2,
-> "A"));
-> root.insert(a);
-> DefaultMutableTreeNode b = new DefaultMutableTreeNode(new Task(3,
-> "B"));
-> root.insert(b);
-> DefaultMutableTreeNode c = new DefaultMutableTreeNode(new Task(4,
-> "C"));
-> root.insert(c);
-> DefaultTreeModel treeModel = new DefaultTreeModel(root);
-> return treeModel;
-> }
->
-> I get the following error
-> Base is null: task
->
-> Wud appreciate your help if you have come across such error or have any
-> idea.
->
-> TIA
-> Nikita
->
->
->
-> ---------------------------------------------------------------------
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