<field name = "timesheet_ids" context = "{'default_project_id': project_id}">

                   <tree editable = "top" string = "Timesheet Activities" default_order = "desc date" limit = "20">

                            <field name = "date" />

                            <field name = "user_id" invisible = "1" />

                            <field name = "employee_id" required = "1" />

                            <field name = "name" />

                            <field name = "unit_amount" string = "Duration" widget = "float_time" />

                            <field name = "project_id" invisible = "1" />

                        </ Tree>

                    </ Field>

above this code is working for only editable and default_order attribute. I need to use limit attribute but it could not working. Why removed limit attribute in odoo v11.