DateTime.Compare(DateTime, DateTime) Método

Definición

Espacio de nombres:

System

Ensamblado:

System.Runtime.dll

Source:

DateTime.cs

Compara dos instancias de DateTime y devuelve un entero que indica si la primera instancia es anterior, igual o posterior a la segunda instancia.

public:
 static int Compare(DateTime t1, DateTime t2);

public static int Compare (DateTime t1, DateTime t2);

static member Compare : DateTime * DateTime -> int

Public Shared Function Compare (t1 As DateTime, t2 As DateTime) As Integer

Parámetros

t1

DateTime

Primer objeto que se va a comparar.

t2

DateTime

Segundo objeto que se va a comparar.

Devoluciones

Int32

Número con signo que indica los valores relativos de t1 y t2.

Tipo de valor	Condición
Menor que cero	t1 es anterior a t2.
Cero	t1 es igual que t2.
Mayor que cero	t1 es posterior a t2.

Ejemplos

En el siguiente ejemplo se muestra el Compare método.

DateTime date1 = new DateTime(2009, 8, 1, 0, 0, 0);
DateTime date2 = new DateTime(2009, 8, 1, 12, 0, 0);
int result = DateTime.Compare(date1, date2);
string relationship;

if (result < 0)
   relationship = "is earlier than";
else if (result == 0)
   relationship = "is the same time as";
else
   relationship = "is later than";

Console.WriteLine("{0} {1} {2}", date1, relationship, date2);

// The example displays the following output for en-us culture:
//    8/1/2009 12:00:00 AM is earlier than 8/1/2009 12:00:00 PM

let date1 = DateTime(2009, 8, 1, 0, 0, 0)
let date2 = DateTime(2009, 8, 1, 12, 0, 0)
let result = DateTime.Compare(date1, date2)

let relationship =
    if result < 0 then
        "is earlier than"
    elif result = 0 then
        "is the same time as"
    else
        "is later than"

printfn $"{date1} {relationship} {date2}"

// The example displays the following output for en-us culture:
//    8/1/2009 12:00:00 AM is earlier than 8/1/2009 12:00:00 PM

Module Example
   Public Sub Main()
      Dim date1 As Date = #08/01/2009 12:00AM#
      Dim date2 As Date = #08/01/2009 12:00PM#
      Dim result As Integer = DateTime.Compare(date1, date2)
      Dim relationship As String
      
      If result < 0 Then
         relationship = "is earlier than"
      ElseIf result = 0 Then
         relationship = "is the same time as"         
      Else
         relationship = "is later than"
      End If
      
      Console.WriteLine("{0} {1} {2}", date1, relationship, date2)
   End Sub
End Module
' The example displays the following output:
'    8/1/2009 12:00:00 AM is earlier than 8/1/2009 12:00:00 PM

Comentarios

Para determinar la relación de t1 con t2, el Compare método compara la Ticks propiedad de t1 y t2 pero omite su Kind propiedad. Antes de DateTime comparar objetos, asegúrese de que los objetos representan horas en la misma zona horaria.

Consulte también

• CompareTo(Object)
• Equals(Object)