DateTime.Day Proprietà

public:
 property int Day { int get(); };

public int Day { get; }

member this.Day : int

Public ReadOnly Property Day As Integer

Valore della proprietà

Componente giorno, espresso come valore compreso tra 1 e 31.

Esempio

Nell'esempio seguente viene illustrata la Day proprietà .

System.DateTime moment = new System.DateTime(
                                1999, 1, 13, 3, 57, 32, 11);
// Year gets 1999.
int year = moment.Year;

// Month gets 1 (January).
int month = moment.Month;

// Day gets 13.
int day = moment.Day;

// Hour gets 3.
int hour = moment.Hour;

// Minute gets 57.
int minute = moment.Minute;

// Second gets 32.
int second = moment.Second;

// Millisecond gets 11.
int millisecond = moment.Millisecond;

open System


let moment = System.DateTime(1999, 1, 13, 3, 57, 32, 11)

// Year gets 1999.
let year = moment.Year

// Month gets 1 (January).
let month = moment.Month

// Day gets 13.
let day = moment.Day

// Hour gets 3.
let hour = moment.Hour

// Minute gets 57.
let minute = moment.Minute

// Second gets 32.
let second = moment.Second

// Millisecond gets 11.
let millisecond = moment.Millisecond

Dim moment As New System.DateTime(1999, 1, 13, 3, 57, 32, 11)

' Year gets 1999.
Dim year As Integer = moment.Year

' Month gets 1 (January).
Dim month As Integer = moment.Month

' Day gets 13.
Dim day As Integer = moment.Day

' Hour gets 3.
Dim hour As Integer = moment.Hour

' Minute gets 57.
Dim minute As Integer = moment.Minute

' Second gets 32.
Dim second As Integer = moment.Second

' Millisecond gets 11.
Dim millisecond As Integer = moment.Millisecond

Commenti

La Day proprietà restituisce sempre il giorno del mese nel calendario gregoriano, anche se è stata creata un'istanza del valore corrente DateTime utilizzando un altro calendario o se il calendario predefinito delle impostazioni cultura correnti non è il calendario gregoriano. Per recuperare il giorno del mese di una data specifica utilizzando un altro calendario, chiamare il metodo del Calendar.GetDayOfMonth calendario. Nell'esempio seguente vengono utilizzate sia la Day proprietà che il HijriCalendar.GetDayOfMonth metodo per recuperare il giorno del mese per un valore di cui viene creata un'istanza DateTime utilizzando il calendario Hijri.

// Return day of 1/13/2009.
DateTime dateGregorian = new DateTime(2009, 1, 13);
Console.WriteLine(dateGregorian.Day);
// Displays 13 (Gregorian day).

// Create date of 1/13/2009 using Hijri calendar.
HijriCalendar hijri = new HijriCalendar();
DateTime dateHijri = new DateTime(1430, 1, 17, hijri);
// Return day of date created using Hijri calendar.
Console.WriteLine(dateHijri.Day);
// Displays 13 (Gregorian day).

// Display day of date in Hijri calendar.
Console.WriteLine(hijri.GetDayOfMonth(dateHijri));
// Displays 17 (Hijri day).

// Return day of 1/13/2009.
let dateGregorian = DateTime(2009, 1, 13)
printfn $"{dateGregorian.Day}"
// Displays 13 (Gregorian day).

// Create date of 1/13/2009 using Hijri calendar.
let hijri = HijriCalendar()
let dateHijri = DateTime(1430, 1, 17, hijri)
// Return day of date created using Hijri calendar.
printfn $"{dateHijri.Day}"
// Displays 13 (Gregorian day).

// Display day of date in Hijri calendar.
printfn $"{hijri.GetDayOfMonth dateHijri}"
// Displays 17 (Hijri day).

' Return day of 1/13/2009.
Dim dateGregorian As Date = #1/13/2009#
Console.WriteLine(dateGregorian.Day)
' Displays 13 (Gregorian date).

' Create date of 1/13/2009 using Hijri calendar.
Dim hijri As New HijriCalendar()
Dim dateHijri As Date = New Date(1430, 1, 17, hijri)
' Return day of date created using Hijri calendar.
Console.WriteLine(dateHijri.Day)                   
' Displays 13 (Gregorian date).

' Display day of date in Hijri calendar.
Console.WriteLine(hijri.GetDayOfMonth(dateHijri))  
' Displays 17 (Hijri date).

Analogamente, l'esempio seguente usa sia la Day proprietà che il HijriCalendar.GetDayOfMonth metodo per recuperare il giorno del mese in cui le impostazioni cultura correnti sono ar-SA, che usa Hijri come calendario predefinito.

CultureInfo originalCulture = Thread.CurrentThread.CurrentCulture;

// Change current culture to ar-SA.
CultureInfo ci = new CultureInfo("ar-SA");
Thread.CurrentThread.CurrentCulture = ci;

DateTime hijriDate = new DateTime(1430, 1, 17,
                         Thread.CurrentThread.CurrentCulture.Calendar);
// Display date (uses calendar of current culture by default).
Console.WriteLine(hijriDate.ToString("dd-MM-yyyy"));
// Displays 17-01-1430.

// Display day of 17th of Muharram
Console.WriteLine(hijriDate.Day);
// Displays 13 (corresponding day of January in Gregorian calendar).

// Display day of 17th of Muharram in Hijri calendar.
Console.WriteLine(Thread.CurrentThread.CurrentCulture.Calendar.GetDayOfMonth(hijriDate));
// Displays 17.

Thread.CurrentThread.CurrentCulture = originalCulture;

open System
open System.Globalization
open System.Threading

let originalCulture = Thread.CurrentThread.CurrentCulture

// Change current culture to ar-SA.
let ci = CultureInfo "ar-SA"
Thread.CurrentThread.CurrentCulture <- ci

let hijriDate = new DateTime(1430, 1, 17,
                        Thread.CurrentThread.CurrentCulture.Calendar);
// Display date (uses calendar of current culture by default).
printfn $"""{hijriDate.ToString "dd-MM-yyyy"}"""
// Displays 17-01-1430.

// Display day of 17th of Muharram
printfn $"{hijriDate.Day}"
// Displays 13 (corresponding day of January in Gregorian calendar).

// Display day of 17th of Muharram in Hijri calendar.
printfn $"{Thread.CurrentThread.CurrentCulture.Calendar.GetDayOfMonth hijriDate}"
// Displays 17.

Thread.CurrentThread.CurrentCulture <- originalCulture

Dim originalCulture As CultureInfo = Thread.CurrentThread.CurrentCulture

' Change current culture to ar-SA.
Dim ci As New CultureInfo("ar-SA")
Thread.CurrentThread.CurrentCulture = ci

Dim hijriDate As New Date(1430, 1, 17, _
                          Thread.CurrentThread.CurrentCulture.Calendar)
' Display date (uses calendar of current culture by default).
Console.WriteLine(hijriDate.ToString("dd-MM-yyyy"))
' Displays 17-01-1430.

' Display day of 17th of Muharram
Console.WriteLine(hijriDate.Day)
' Displays 13 (corresponding day of January in Gregorian calendar).

' Display day of 17th of Muharram in Hijri calendar.
Console.WriteLine(Thread.CurrentThread.CurrentCulture.Calendar.GetDayOfMonth(hijriDate))
' Displays 17.

Thread.CurrentThread.CurrentCulture = originalCulture