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TimeZoneInfo.AdjustmentRule.Equals Methode

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Definition

Namespace:
System
Assembly:
System.Runtime.dll
Assembly:
System.Core.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Überlädt

Equals(Object)

Gibt an, ob die aktuelle Instanz gleich einer anderen Instanz ist.
Equals(TimeZoneInfo+AdjustmentRule)

Bestimmt, ob das aktuelle TimeZoneInfo.AdjustmentRule-Objekt und das zweite TimeZoneInfo.AdjustmentRule-Objekt identisch sind.

Equals(Object)

Gibt an, ob die aktuelle Instanz gleich einer anderen Instanz ist.

public:
 override bool Equals(System::Object ^ obj);
public override bool Equals (object? obj);
override this.Equals : obj -> bool
Public Overrides Function Equals (obj As Object) As Boolean

Parameter

obj
Object

Eine Instanz, die mit dieser Instanz verglichen werden soll.

Gibt zurück

Boolean

true wenn die aktuelle Instanz gleich der anderen Instanz ist; andernfalls false.

Gilt für

Equals(TimeZoneInfo+AdjustmentRule)

Bestimmt, ob das aktuelle TimeZoneInfo.AdjustmentRule-Objekt und das zweite TimeZoneInfo.AdjustmentRule-Objekt identisch sind.

public:
 virtual bool Equals(TimeZoneInfo::AdjustmentRule ^ other);
public bool Equals (TimeZoneInfo.AdjustmentRule? other);
public bool Equals (TimeZoneInfo.AdjustmentRule other);
override this.Equals : TimeZoneInfo.AdjustmentRule -> bool
Public Function Equals (other As TimeZoneInfo.AdjustmentRule) As Boolean

Parameter

other
TimeZoneInfo.AdjustmentRule

Das Objekt, das mit dem aktuellen Objekt verglichen werden soll.

Gibt zurück

Boolean

true, wenn beide TimeZoneInfo.AdjustmentRule-Objekte gleiche Werte aufweisen, andernfalls false.

Implementiert

Equals(T)

Beispiele

Im folgenden Beispiel wird die Methode aufgerufen, um die TimeZoneInfo.AdjustmentRule.Equals(TimeZoneInfo+AdjustmentRule) Anpassungsregeln für zentrale Standardzeit mit denen für Kanada Central Standard Time und Mexiko Standard Time zu vergleichen.

   string timeZoneName = "";
   // Get CST, Canadian CST, and Mexican CST adjustment rules
   TimeZoneInfo.AdjustmentRule[] usCstAdjustments = null;
   TimeZoneInfo.AdjustmentRule[] canCstAdjustments = null;
   TimeZoneInfo.AdjustmentRule[] mexCstAdjustments = null;
   try
   {
      timeZoneName = "Central Standard Time";
      usCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules();
   }
   catch (TimeZoneNotFoundException)
   {
      Console.WriteLine("The {0} time zone is not defined in the registry.", 
                        timeZoneName);
   }                           
   catch (InvalidTimeZoneException)
   {
      Console.WriteLine("Data for the {0} time zone is invalid.", 
                        timeZoneName);
   }
   try
   {
      timeZoneName = "Canada Central Standard Time";
      canCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules();
   }
   catch (TimeZoneNotFoundException)
   {
      Console.WriteLine("The {0} time zone is not defined in the registry.", 
                        timeZoneName);
   }                           
   catch (InvalidTimeZoneException)
   {
      Console.WriteLine("Data for the {0} time zone is invalid.", 
                        timeZoneName);
   }
   try
   {
      timeZoneName = "Central Standard Time (Mexico)";
      mexCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules();
   }   
   catch (TimeZoneNotFoundException)
   {
      Console.WriteLine("The {0} time zone is not defined in the registry.", 
                        timeZoneName);
   }                           
   catch (InvalidTimeZoneException)
   {
      Console.WriteLine("Data for the {0} time zone is invalid.", 
                        timeZoneName);
   }
   // Determine if CST and other time zones have the same rules
   foreach(TimeZoneInfo.AdjustmentRule rule in usCstAdjustments)
   {
      Console.WriteLine("Comparing Central Standard Time rule for {0:d} to {1:d} with:", 
                        rule.DateStart, rule.DateEnd);
      // Compare with Canada Central Standard Time
      if (canCstAdjustments.Length == 0)
      {
         Console.WriteLine("   Canada Central Standard Time has no adjustment rules.");
      }   
      else
      {
         foreach (TimeZoneInfo.AdjustmentRule canRule in canCstAdjustments)
         {
            Console.WriteLine("   Canadian CST for {0:d} to {1:d}: {2}", 
                              canRule.DateStart, canRule.DateEnd, 
                              rule.Equals(canRule) ? "Equal" : "Not Equal");
         }              
      }          

      // Compare with Mexico Central Standard Time
      if (mexCstAdjustments.Length == 0)
      {
         Console.WriteLine("   Mexican Central Standard Time has no adjustment rules.");
      }
      else
      {
         foreach (TimeZoneInfo.AdjustmentRule mexRule in mexCstAdjustments)
         {
            Console.WriteLine("   Mexican CST for {0:d} to {1:d}: {2}", 
                              mexRule.DateStart, mexRule.DateEnd, 
                              rule.Equals(mexRule) ? "Equal" : "Not Equal");
         }              
      }
   }   
   // This code displays the following output to the console:
   // 
   // Comparing Central Standard Time rule for 1/1/0001 to 12/31/9999 with:
   //    Canada Central Standard Time has no adjustment rules.
   //    Mexican CST for 1/1/0001 to 12/31/9999: Equal

// Get CST, Canadian CST, and Mexican CST adjustment rules
let usCstAdjustments =
    let timeZoneName = "Central Standard Time"
    try
        TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules()
    with
    | :? TimeZoneNotFoundException ->
        printfn $"The {timeZoneName} time zone is not defined in the registry."
        null
    | :? InvalidTimeZoneException ->
        printfn $"Data for the {timeZoneName} time zone is invalid."
        null
let canCstAdjustments = 
    let timeZoneName = "Canada Central Standard Time"
    try
        TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules()
    with
    | :? TimeZoneNotFoundException ->
        printfn $"The {timeZoneName} time zone is not defined in the registry."
        null
    | :? InvalidTimeZoneException ->
        printfn $"Data for the {timeZoneName} time zone is invalid."
        null
let mexCstAdjustments = 
    let timeZoneName = "Central Standard Time (Mexico)"
    try
        TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules()
    with
    | :? TimeZoneNotFoundException ->
        printfn $"The {timeZoneName} time zone is not defined in the registry."
        null
    | :? InvalidTimeZoneException ->
        printfn $"Data for the {timeZoneName} time zone is invalid."
        null
// Determine if CST and other time zones have the same rules
for rule in usCstAdjustments do
    printfn $"Comparing Central Standard Time rule for {rule.DateStart:d} to {rule.DateEnd:d} with:"
    // Compare with Canada Central Standard Time
    if canCstAdjustments.Length = 0 then
        printfn "   Canada Central Standard Time has no adjustment rules."
    else
        for canRule in canCstAdjustments do
            printfn $"""   Canadian CST for {canRule.DateStart:d} to {canRule.DateEnd:d}: {if rule.Equals canRule then "Equal" else "Not Equal"}"""

    // Compare with Mexico Central Standard Time
    if mexCstAdjustments.Length = 0 then
        printfn "   Mexican Central Standard Time has no adjustment rules."
    else
        for mexRule in mexCstAdjustments do
            printfn $"""   Mexican CST for {mexRule.DateStart:d} to {mexRule.DateEnd:d}: {if rule.Equals mexRule then "Equal" else "Not Equal"}"""
// This code displays the following output to the console:
// 
// Comparing Central Standard Time rule for 1/1/0001 to 12/31/9999 with:
//    Canada Central Standard Time has no adjustment rules.
//    Mexican CST for 1/1/0001 to 12/31/9999: Equal

   Dim timeZoneName As String = String.Empty
   ' Get CST, Canadian CST, and Mexican CST adjustment rules
   Dim usCstAdjustments(), canCstAdjustments(), mexCstAdjustments() As TimeZoneInfo.AdjustmentRule
   Try
      timeZoneName = "Central Standard Time"
      usCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules
   Catch e As TimeZoneNotFoundException
      Console.WriteLine("The {0} time zone is not defined in the registry.", timeZoneName)
   Catch e As InvalidTimeZoneException
      Console.WriteLine("Data for the {0} time zone is invalid.", timeZoneName)
   End Try
   Try
      timeZoneName = "Canada Central Standard Time"
      canCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules
   Catch e As TimeZoneNotFoundException
      Console.WriteLine("The {0} time zone is not defined in the registry.", timeZoneName)
   Catch e As InvalidTimeZoneException
      Console.WriteLine("Data for the {0} time zone is invalid.", timeZoneName)
   End Try
   Try
      timeZoneName = "Central Standard Time (Mexico)"
      mexCstAdjustments = TimeZoneInfo.FindSystemTimeZoneById(timeZoneName).GetAdjustmentRules
   Catch e As TimeZoneNotFoundException
      Console.WriteLine("The {0} time zone is not defined in the registry.", timeZoneName)
   Catch e As InvalidTimeZoneException
      Console.WriteLine("Data for the {0} time zone is invalid.", timeZoneName)
   End Try
   ' Determine if CST and other time zones have the same rules
   For Each rule As TimeZoneInfo.AdjustmentRule In usCstAdjustments
      Console.WriteLine("Comparing Central Standard Time rule for {0:d} to {1:d} with:", _
                        rule.DateStart, rule.DateEnd)
      ' Compare with Canada Central Standard Time
      If canCstAdjustments.Length = 0 Then
         Console.WriteLine("   Canada Central Standard Time has no adjustment rules.")
      Else
         For Each canRule As TimeZoneInfo.AdjustmentRule In canCstAdjustments
            Console.WriteLine("   Canadian CST for {0:d} to {1:d}: {2}", _
                              canRule.DateStart, canRule.DateEnd, _
                              IIf(rule.Equals(canRule), "Equal", "Not Equal"))
         Next              
      End If          

      ' Compare with Mexico Central Standard Time
      If mexCstAdjustments.Length = 0 Then
         Console.WriteLine("   Mexican Central Standard Time has no adjustment rules.")
      Else
         For Each mexRule As TimeZoneInfo.AdjustmentRule In mexCstAdjustments
            Console.WriteLine("   Mexican CST for {0:d} to {1:d}: {2}", _
                              mexRule.DateStart, mexRule.DateEnd, _
                              IIf(rule.Equals(mexRule), "Equal", "Not Equal"))
         Next              
      End If
   Next   
   ' This code displays the following output to the console:
   ' 
   ' Comparing Central Standard Time rule for 1/1/0001 to 12/31/9999 with:
   '    Canada Central Standard Time has no adjustment rules.
   '    Mexican CST for 1/1/0001 to 12/31/9999: Equal

Dieser Code zeigt die folgende Ausgabe für die Konsole an:

Comparing Central Standard Time rule for 1/1/0001 to 12/31/9999 with:  
   Canada Central Standard Time has no adjustment rules.  
   Mexican CST for 1/1/0001 to 12/31/9999: Equal

Hinweise

Um zu ermitteln, ob zwei TimeZoneInfo.AdjustmentRule Objekte gleich sind, vergleicht die Equals(TimeZoneInfo+AdjustmentRule) Methode die Memberwerte jedes Objekts. Zwei Anpassungsregeln sind gleich, wenn sie dieselben effektiven Datumsangaben, dasselbe Delta und identische Werte für die TimeZoneInfo.TransitionTime von ihren und DaylightTransitionEnd ihren DaylightTransitionStart Eigenschaften zurückgegebenen Objekte haben.

Gilt für