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DatePicker.FirstDayOfWeek Property


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Gets or sets the day that is considered the beginning of the week.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public DayOfWeek FirstDayOfWeek { get; set; }

Property Value

Type: System.DayOfWeek

A DayOfWeek that represents the beginning of the week. The default is the FirstDayOfWeek that is determined by the current culture.

This property affects the Calendar of the DatePicker. For more information, see the Calendar.FirstDayOfWeek property.

Identifier field


Metadata properties set to true


<DatePicker FirstDayOfWeek="DayOfWeek"/>

The following example creates a DatePicker that displays Monday as the first day of the week.

DatePicker datePickerFor2009 = new DatePicker();
datePickerFor2009.SelectedDate = new DateTime(2009, 3, 23);
datePickerFor2009.DisplayDateStart = new DateTime(2009, 1, 1);
datePickerFor2009.DisplayDateEnd = new DateTime(2009, 12, 31);
datePickerFor2009.SelectedDateFormat = DatePickerFormat.Long;
datePickerFor2009.FirstDayOfWeek = DayOfWeek.Monday;

// root is a Panel that is defined elsewhere.
<!-- A DatePicker that has March 23, 2009 selected and 
           displays the Long date format. -->
<DatePicker SelectedDateFormat="Long" SelectedDate="3/23/09"
                  DisplayDateStart="1/01/09" DisplayDateEnd="12/31/09" 

.NET Framework
Available since 4.0
Available since 2.0
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