- Qt 6.12
- Qt Quick Controls
- QML Types
- WeekNumberColumn
- Qt 6.12.0 Reference Documentation

# WeekNumberColumn QML Type

A column of week numbers. More...

Import Statement: | `import QtQuick.Controls`
Inherits: | Control

- List of all members, including inherited members

## Properties

- delegate : Component
- month : int
- year : int

## Detailed Description

WeekNumberColumn presents week numbers in a column. The week numbers are calculated for a given month and year, using the specified locale.

     WeekNumberColumn {
         month: Calendar.December
         year: 2015
         locale: Qt.locale("en_US")
     }

WeekNumberColumn can be used as a standalone control, but it is most often used in conjunction with MonthGrid. Regardless of the use case, positioning of the column is left to the user.

     RowLayout {
         WeekNumberColumn {
             month: grid.month
             year: grid.year
             locale: grid.locale
             Layout.fillHeight: true
         }

         MonthGrid {
             id: grid
             month: Calendar.December
             year: 2015
             locale: Qt.locale("en_US")
             Layout.fillHeight: true
         }
     }

The visual appearance of WeekNumberColumn can be changed by implementing a custom delegate.

See also MonthGrid and DayOfWeekRow.

## Property Documentation

### delegate : Component

This property holds the item delegate that visualizes each week number.

In addition to the `index` property, a list of model data roles are available in the context of each delegate:

model.weekNumber : int | The week number

The following snippet presents the default implementation of the item delegate. It can be used as a starting point for implementing custom delegates.

     delegate: Text {
         text: weekNumber
         font: control.font
         horizontalAlignment: Text.AlignHCenter
         verticalAlignment: Text.AlignVCenter

         required property int weekNumber
     }

WeekNumberColumn does not take ownership of the delegate.

### month : int

This property holds the number of the month that the week numbers are calculated for. The default value is the current month.

Calendar-related types in Qt Quick Controls use 0-based month numbers, like the JavaScript Date objects. However, this differs from QDate, where the months are numbered starting from 1.

To avoid confusion, you can use the following enumeration values:

Constant | Description
--- | ---
`Calendar.January` | January (0)
`Calendar.February` | February (1)
`Calendar.March` | March (2)
`Calendar.April` | April (3)
`Calendar.May` | May (4)
`Calendar.June` | June (5)
`Calendar.July` | July (6)
`Calendar.August` | August (7)
`Calendar.September` | September (8)
`Calendar.October` | October (9)
`Calendar.November` | November (10)
`Calendar.December` | December (11)

See also Calendar.

### year : int

This property holds the number of the year that the week numbers are calculated for.

The value must be in the range from `-271820` to `275759`. The default value is the current year.