Tree View

The tree view shows data in hierarchical tree list with several columns.

A tree view can be defined like this:

<tree name="project-task-tree" title="Project Tasks">

  <!-- define tree columns -->
  <column name="title" type="string" /> (1)
  <column name="progress" type="integer" />

  <!-- define 1st level node -->
  <node model="com.axelor.project.db.Project"> (2)
    <field name="name" as="title" />
  </node>

  <!-- define 2nd level node -->
  <node model="com.axelor.project.db.ProjectTask" parent="project"
    draggable="true" onClick="project.task.add"> (3)
    <field name="name" as="title" />
    <field name="progress" as="progress" />
  </node>

</tree>
1 define a tree column with the given name and type
2 define the root node data source
3 define 2nd level node data source with root node as parent

Column

The <column> items are used to define display columns for the tree view.

Attribute Description

name

name of the node

type

data type of the column

title

column title

The columns are bound to node fields described below.

Node

Tree view requires <node> items to define data sources for the tree nodes.

The <node> item can have the following attributes:

Attribute Description

model

name of the data source model

parent

name of the parent field

domain

domain filter to restrict node data

orderBy

comma separated list of field name to order the node data

draggable

whether the node is draggable

onClick

action to execute when double-click on a node

The first node item should define data source of the type referenced by the parent attribute of the next node item. Subsequent nodes should follow the same rule.

If a node is draggable it can be dropped on any of the parent node to change the parent of the dragged node.