Should I use tree or list in Odoo 19?

Use . The tag was renamed to in Odoo 18. still works but is deprecated and will be removed in a future version.

How do I make a field conditionally invisible in Odoo 19?

Use the invisible attribute directly: invisible="state != 'draft'". The attrs= syntax was removed in Odoo 17. Do NOT use attrs={'invisible': [...]} in Odoo 17+.

How do I inherit and modify an existing view?

Create a new ir.ui.view record with inherit_id pointing to the parent view. Use xpath expressions to locate elements and position attributes (after, before, inside, replace) to add or modify content.

What is the correct form view structure?

header (buttons, statusbar) → sheet (oe_title with main field, groups for two-column layout, notebook for tabs) → oe_chatter (messages, activities, followers).

How do I add color coding to list views?

Use decoration-* attributes on the tag: decoration-danger for red, decoration-warning for orange, decoration-success for green, decoration-info for blue. Example: decoration-danger="amount > 10000"

Odoo 19 Views: Complete Guide — Form, List, Kanban, Search (2026)

What Changed in Odoo 19 Views

If you are coming from an earlier version, these are the critical changes:

Odoo 18+: <tree> renamed to <list> — using <tree> still works but is deprecated
Odoo 17+: attrs attribute removed — use invisible, readonly, required directly as view attributes
Odoo 19: web_editor module removed, replaced by html_editor + html_builder

Form Views

<record id="equipment_view_form" model="ir.ui.view">
    <field name="name">equipment.form</field>
    <field name="model">equipment.item</field>
    <field name="arch" type="xml">
        <form>
            <header>
                <button name="action_confirm" type="object"
                        string="Confirm" class="btn-primary"
                        invisible="state != 'draft'"/>
                <field name="state" widget="statusbar"
                       statusbar_visible="draft,confirmed,done"/>
            </header>
            <sheet>
                <div class="oe_title">
                    <h1><field name="name" placeholder="Equipment Name"/></h1>
                </div>
                <group>
                    <group string="Details">
                        <field name="serial_number"/>
                        <field name="department_id"/>
                        <field name="assigned_to"/>
                    </group>
                    <group string="Dates">
                        <field name="purchase_date"/>
                        <field name="warranty_expiry"/>
                        <field name="days_until_warranty"
                               invisible="not warranty_expiry"/>
                    </group>
                </group>
                <notebook>
                    <page string="Maintenance History" name="maintenance">
                        <field name="maintenance_ids">
                            <list>
                                <field name="date"/>
                                <field name="type"/>
                                <field name="description"/>
                                <field name="cost"/>
                            </list>
                        </field>
                    </page>
                    <page string="Notes" name="notes">
                        <field name="notes" placeholder="Internal notes..."/>
                    </page>
                </notebook>
            </sheet>
            <div class="oe_chatter">
                <field name="message_follower_ids"/>
                <field name="activity_ids"/>
                <field name="message_ids"/>
            </div>
        </form>
    </field>
</record>

Key Form View Elements

Element	Purpose
`<header>`	Action buttons and statusbar
`<sheet>`	Main content area with white background
`<div class="oe_title">`	Large title field at the top
`<group>`	Two-column layout container
`<notebook>` / `<page>`	Tabbed sections
`<div class="oe_chatter">`	Discussion thread and activities

List Views (Formerly Tree)

<record id="equipment_view_list" model="ir.ui.view">
    <field name="name">equipment.list</field>
    <field name="model">equipment.item</field>
    <field name="arch" type="xml">
        <list decoration-danger="days_until_warranty < 30"
              decoration-warning="days_until_warranty < 90">
            <field name="name"/>
            <field name="serial_number"/>
            <field name="department_id"/>
            <field name="assigned_to"/>
            <field name="state" widget="badge"
                   decoration-success="state == 'active'"
                   decoration-info="state == 'maintenance'"/>
            <field name="warranty_expiry"/>
            <field name="days_until_warranty" optional="hide"/>
        </list>
    </field>
</record>

Important: Use <list> not <tree> in Odoo 18+. <tree> still works but is deprecated.

Kanban Views

<record id="equipment_view_kanban" model="ir.ui.view">
    <field name="name">equipment.kanban</field>
    <field name="model">equipment.item</field>
    <field name="arch" type="xml">
        <kanban default_group_by="state">
            <templates>
                <t t-name="card">
                    <field name="name" class="fw-bold fs-5"/>
                    <field name="serial_number" class="text-muted"/>
                    <div class="d-flex justify-content-between mt-2">
                        <field name="department_id"/>
                        <field name="assigned_to" widget="many2one_avatar"/>
                    </div>
                </t>
            </templates>
        </kanban>
    </field>
</record>

Search Views

<record id="equipment_view_search" model="ir.ui.view">
    <field name="name">equipment.search</field>
    <field name="model">equipment.item</field>
    <field name="arch" type="xml">
        <search>
            <field name="name"/>
            <field name="serial_number"/>
            <field name="department_id"/>
            <field name="assigned_to"/>
            <filter name="active" string="Active"
                    domain="[('state', '=', 'active')]"/>
            <filter name="maintenance" string="In Maintenance"
                    domain="[('state', '=', 'maintenance')]"/>
            <filter name="warranty_expiring" string="Warranty Expiring"
                    domain="[('days_until_warranty', '<', 90)]"/>
            <separator/>
            <group string="Group By">
                <filter name="group_department" string="Department"
                        context="{'group_by': 'department_id'}"/>
                <filter name="group_state" string="Status"
                        context="{'group_by': 'state'}"/>
                <filter name="group_assigned" string="Assigned To"
                        context="{'group_by': 'assigned_to'}"/>
            </group>
        </search>
    </field>
</record>

View Inheritance

<!-- Add a field to an existing view -->
<record id="equipment_view_form_inherit" model="ir.ui.view">
    <field name="name">equipment.form.inherit</field>
    <field name="model">equipment.item</field>
    <field name="inherit_id" ref="equipment_view_form"/>
    <field name="arch" type="xml">
        <!-- Add after a specific field -->
        <xpath expr="//field[@name='serial_number']" position="after">
            <field name="manufacturer"/>
        </xpath>

        <!-- Add a new page to the notebook -->
        <xpath expr="//notebook" position="inside">
            <page string="Warranty Info" name="warranty">
                <group>
                    <field name="warranty_provider"/>
                    <field name="warranty_type"/>
                </group>
            </page>
        </xpath>
    </field>
</record>

Common XPath Patterns

XPath	Matches
`//field[@name='x']`	Field named 'x' anywhere
`//group[@string='Details']`	Group with string 'Details'
`//page[@name='notes']`	Notebook page named 'notes'
`//notebook`	The notebook element
`//sheet`	The sheet element

Position Attribute

Position	Effect
`after`	Insert after the matched element
`before`	Insert before the matched element
`inside`	Insert as last child of matched element
`replace`	Replace the matched element entirely
`attributes`	Modify attributes of matched element

Conditional Visibility (Odoo 17+)

<!-- OLD (Odoo 16 and earlier) — DO NOT USE IN v17+ -->
<field name="discount" attrs="{'invisible': [('state', '!=', 'draft')]}"/>

<!-- NEW (Odoo 17+) — use direct attribute -->
<field name="discount" invisible="state != 'draft'"/>
<field name="approval_note" readonly="state == 'done'"/>
<field name="partner_id" required="state == 'confirmed'"/>

<!-- Complex conditions -->
<field name="discount" invisible="state != 'draft' or not is_manager"/>

Getting Started

Use Claude Code with an Odoo 19 CLAUDE.md to generate views with correct syntax. Deploy and test on DeployMonkey — the AI agent helps diagnose view rendering issues.

Odoo 19 Views: Complete Guide to Form, List, Kanban, and Search Views