Tuple<T1,T2,T3,T4,T5> Tuple<T1,T2,T3,T4,T5> Tuple<T1,T2,T3,T4,T5> Tuple<T1,T2,T3,T4,T5> Class

Definition

Represents a 5-tuple, or quintuple.

generic <typename T1, typename T2, typename T3, typename T4, typename T5>
public ref class Tuple : IComparable, System::Collections::IStructuralComparable, System::Collections::IStructuralEquatable
public class Tuple<T1,T2,T3,T4,T5> : IComparable, System.Collections.IStructuralComparable, System.Collections.IStructuralEquatable
type Tuple<'T1, 'T2, 'T3, 'T4, 'T5> = class
    interface IStructuralEquatable
    interface IStructuralComparable
    interface IComparable
Public Class Tuple(Of T1, T2, T3, T4, T5)
Implements IComparable, IStructuralComparable, IStructuralEquatable
Type Parameters
T1

The type of the tuple's first component.

T2

The type of the tuple's second component.

T3

The type of the tuple's third component.

T4

The type of the tuple's fourth component.

T5

The type of the tuple's fifth component.

Inheritance
Tuple<T1,T2,T3,T4,T5>Tuple<T1,T2,T3,T4,T5>Tuple<T1,T2,T3,T4,T5>Tuple<T1,T2,T3,T4,T5>
Implements

Remarks

A tuple is a data structure that has a specific number and sequence of values. The Tuple<T1,T2,T3,T4,T5> class represents a 5-tuple, or quintuple, which is a tuple that has five components.

You can instantiate a Tuple<T1,T2,T3,T4,T5> object by calling either the Tuple<T1,T2,T3,T4,T5> constructor or the static Tuple.Create<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5) method. You can retrieve the value of the tuple's components by using the read-only Item1, Item2, Item3, Item4, and Item5 instance properties.

Tuples are commonly used in four different ways:

  • To represent a single set of data. For example, a tuple can represent a database record, and its components can represent individual fields of the record.

  • To provide easy access to, and manipulation of, a data set. The following example defines an array of Tuple<T1,T2,T3,T4,T5> objects that contain the names of running backs in American football, the number of games in which they played, and the number of carries, total yards gained, and touchdowns scored during those games. The array is passed to the ComputeStatistics method, which calculates each running back's number of carries per game, average yards per game, average yards per carry, and average number of touchdowns per attempt.

    using System;
    using System.Collections.Generic;
    
    public class Example
    {
       public static void Main()
       {
          // Organization of runningBacks 5-tuple:
          //    Component 1: Player name
          //    Component 2: Number of games played
          //    Component 3: Number of attempts (carries)
          //    Component 4: Number of yards gained 
          //    Component 5: Number of touchdowns   
          Tuple<string, int, int, int, int>[] runningBacks =
               { Tuple.Create("Payton, Walter", 190, 3838, 16726, 110),  
                 Tuple.Create("Sanders, Barry", 153, 3062, 15269, 99),            
                 Tuple.Create("Brown, Jim", 118, 2359, 12312, 106),            
                 Tuple.Create("Dickerson, Eric", 144, 2996, 13259, 90),            
                 Tuple.Create("Faulk, Marshall", 176, 2836, 12279, 100) }; 
          // Calculate statistics.
          // Organization of runningStats 5-tuple:
          //    Component 1: Player name
          //    Component 2: Number of attempts per game
          //    Component 3: Number of yards per game
          //    Component 4: Number of yards per attempt 
          //    Component 5: Number of touchdowns per attempt   
          Tuple<string, double, double, double, double>[] runningStats  = 
              ComputeStatistics(runningBacks);
    
          // Display the result.          
          Console.WriteLine("{0,-16} {1,5} {2,6} {3,7} {4,7} {5,7} {6,7} {7,5} {8,7}\n", 
                            "Name", "Games", "Att", "Att/Gm", "Yards", "Yds/Gm",
                            "Yds/Att", "TD", "TD/Att");
          for (int ctr = 0; ctr < runningBacks.Length; ctr++)
             Console.WriteLine("{0,-16} {1,5} {2,6:N0} {3,7:N1} {4,7:N0} {5,7:N1} {6,7:N2} {7,5} {8,7:N3}\n", 
                               runningBacks[ctr].Item1, runningBacks[ctr].Item2, runningBacks[ctr].Item3, 
                               runningStats[ctr].Item2, runningBacks[ctr].Item4, runningStats[ctr].Item3, 
                               runningStats[ctr].Item4, runningBacks[ctr].Item5, runningStats[ctr].Item5);
       }
    
       private static Tuple<string, double, double, double, double>[] ComputeStatistics(
                    Tuple<string, int, int, int, int>[] players) 
       {
          Tuple<string, double, double, double, double> result; 
          var list = new List<Tuple<string, double, double, double, double>>();
          
          foreach (var player in players)
          {
             // Create result object containing player name and statistics.
             result = Tuple.Create(player.Item1,  
                                   player.Item3/((double)player.Item2), 
                                   player.Item4/((double)player.Item2),
                                   player.Item4/((double)player.Item3), 
                                   player.Item5/((double)player.Item3));
             list.Add(result);         
          }
          return list.ToArray();  
       }
    }
    // The example displays the following output:
    //    Name             Games    Att  Att/Gm   Yards  Yds/Gm Yds/Att    TD  TD/Att
    //    
    //    Payton, Walter     190  3,838    20.2  16,726    88.0    4.36   110   0.029
    //    
    //    Sanders, Barry     153  3,062    20.0  15,269    99.8    4.99    99   0.032
    //    
    //    Brown, Jim         118  2,359    20.0  12,312   104.3    5.22   106   0.045
    //    
    //    Dickerson, Eric    144  2,996    20.8  13,259    92.1    4.43    90   0.030
    //    
    //    Faulk, Marshall    176  2,836    16.1  12,279    69.8    4.33   100   0.035
    
    Imports System.Collections.Generic
    
    Module Example
       Public Sub Main()
          ' Organization of runningBacks 5-tuple:
          '    Component 1: Player name
          '    Component 2: Number of games played
          '    Component 3: Number of attempts (carries)
          '    Component 4: Number of yards gained 
          '    Component 5: Number of touchdowns   
          Dim runningBacks() =
              { Tuple.Create("Payton, Walter", 190, 3838, 16726, 110),  
                Tuple.Create("Sanders, Barry", 153, 3062, 15269, 99),            
                Tuple.Create("Brown, Jim", 118, 2359, 12312, 106),            
                Tuple.Create("Dickerson, Eric", 144, 2996, 13259, 90),            
                Tuple.Create("Faulk, Marshall", 176, 2836, 12279, 100) } 
          ' Calculate statistics.
          ' Organization of runningStats 5-tuple:
          '    Component 1: Player name
          '    Component 2: Number of attempts per game
          '    Component 3: Number of yards per game
          '    Component 4: Number of yards per attempt 
          '    Component 5: Number of touchdowns per attempt   
          Dim runningStats() = ComputeStatistics(runningBacks)
    
          ' Display the result.          
          Console.WriteLine("{0,-16} {1,5} {2,6} {3,7} {4,7} {5,7} {6,7} {7,5} {8,7}", 
                            "Name", "Games", "Att", "Att/Gm", "Yards", "Yds/Gm",
                            "Yds/Att", "TD", "TD/Att")
          Console.WriteLine()
          For ctr As Integer = 0 To runningBacks.Length - 1
             Console.WriteLine("{0,-16} {1,5} {2,6:N0} {3,7:N1} {4,7:N0} {5,7:N1} {6,7:N2} {7,5} {8,7:N3}", 
                               runningBacks(ctr).Item1, runningBacks(ctr).Item2, runningBacks(ctr).Item3, 
                               runningStats(ctr).Item2, runningBacks(ctr).Item4, runningStats(ctr).Item3, 
                               runningStats(ctr).Item4, runningBacks(ctr).Item5, runningStats(ctr).Item5)
             Console.WriteLine()  
          Next     
       End Sub
    
       Private Function ComputeStatistics(players() As Tuple(Of String, Integer, Integer, Integer, Integer)) _
                        As Tuple(Of String, Double, Double, Double, Double)()
    
          Dim result As Tuple(Of String, Double, Double, Double, Double)
          Dim list As New List(Of Tuple(Of String, Double, Double, Double, Double))()
          
          For Each player In players
             ' Create result object containing player name and statistics.
             result = Tuple.Create(player.Item1,  
                                player.Item3/player.Item2, player.Item4/player.Item2,
                                player.Item4/player.Item3, player.Item5/player.Item3)
             list.Add(result)         
          Next
          Return list.ToArray()  
       End Function
    End Module
    ' The example displays the following output:
    '    Name             Games    Att  Att/Gm   Yards  Yds/Gm Yds/Att    TD  TD/Att
    '    
    '    Payton, Walter     190  3,838    20.2  16,726    88.0    4.36   110   0.029
    '    
    '    Sanders, Barry     153  3,062    20.0  15,269    99.8    4.99    99   0.032
    '    
    '    Brown, Jim         118  2,359    20.0  12,312   104.3    5.22   106   0.045
    '    
    '    Dickerson, Eric    144  2,996    20.8  13,259    92.1    4.43    90   0.030
    '    
    '    Faulk, Marshall    176  2,836    16.1  12,279    69.8    4.33   100   0.035
    
  • To return multiple values from a method without the use of out parameters (in C#) or ByRef parameters (in Visual Basic). For example, the previous example returns its computed statistics, along with the name of the player, in an array of Tuple<T1,T2,T3,T4,T5> objects.

  • To pass multiple values to a method through a single parameter. For example, the Thread.Start(Object) method has a single parameter that lets you supply one value to the method that the thread executes at startup. If you supply a Tuple<T1,T2,T3,T4,T5> object as the method argument, you can supply the thread’s startup routine with five items of data.

Constructors

Tuple<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5) Tuple<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5) Tuple<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5) Tuple<T1,T2,T3,T4,T5>(T1, T2, T3, T4, T5)

Initializes a new instance of the Tuple<T1,T2,T3,T4,T5> class.

Properties

Item1 Item1 Item1 Item1

Gets the value of the current Tuple<T1,T2,T3,T4,T5> object's first component.

Item2 Item2 Item2 Item2

Gets the value of the current Tuple<T1,T2,T3,T4,T5> object's second component.

Item3 Item3 Item3 Item3

Gets the value of the current Tuple<T1,T2,T3,T4,T5> object's third component.

Item4 Item4 Item4 Item4

Gets the value of the current Tuple<T1,T2,T3,T4,T5> object's fourth component.

Item5 Item5 Item5 Item5

Gets the value of the current Tuple<T1,T2,T3,T4,T5> object's fifth component.

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Returns a value that indicates whether the current Tuple<T1,T2,T3,T4,T5> object is equal to a specified object.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Returns the hash code for the current Tuple<T1,T2,T3,T4,T5> object.

GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the value of this Tuple<T1,T2,T3,T4,T5> instance.

Explicit Interface Implementations

IComparable.CompareTo(Object) IComparable.CompareTo(Object) IComparable.CompareTo(Object) IComparable.CompareTo(Object)

Compares the current Tuple<T1,T2,T3,T4,T5> object to a specified object and returns an integer that indicates whether the current object is before, after, or in the same position as the specified object in the sort order.

IStructuralComparable.CompareTo(Object, IComparer) IStructuralComparable.CompareTo(Object, IComparer) IStructuralComparable.CompareTo(Object, IComparer) IStructuralComparable.CompareTo(Object, IComparer)

Compares the current Tuple<T1,T2,T3,T4,T5> object to a specified object by using a specified comparer and returns an integer that indicates whether the current object is before, after, or in the same position as the specified object in the sort order.

IStructuralEquatable.Equals(Object, IEqualityComparer) IStructuralEquatable.Equals(Object, IEqualityComparer) IStructuralEquatable.Equals(Object, IEqualityComparer) IStructuralEquatable.Equals(Object, IEqualityComparer)

Returns a value that indicates whether the current Tuple<T1,T2,T3,T4,T5> object is equal to a specified object based on a specified comparison method.

IStructuralEquatable.GetHashCode(IEqualityComparer) IStructuralEquatable.GetHashCode(IEqualityComparer) IStructuralEquatable.GetHashCode(IEqualityComparer) IStructuralEquatable.GetHashCode(IEqualityComparer)

Calculates the hash code for the current Tuple<T1,T2,T3,T4,T5> object by using a specified computation method.

ITuple.Item[Int32] ITuple.Item[Int32] ITuple.Item[Int32] ITuple.Item[Int32]

Gets the value of the specified Tuple element.

ITuple.Length ITuple.Length ITuple.Length ITuple.Length

Gets the number of elements in the Tuple.

Extension Methods

ToValueTuple<T1,T2,T3,T4,T5>(Tuple<T1,T2,T3,T4,T5>) ToValueTuple<T1,T2,T3,T4,T5>(Tuple<T1,T2,T3,T4,T5>) ToValueTuple<T1,T2,T3,T4,T5>(Tuple<T1,T2,T3,T4,T5>) ToValueTuple<T1,T2,T3,T4,T5>(Tuple<T1,T2,T3,T4,T5>)

Converts an instance of the Tuple class to an instance of the ValueTuple structure.

Applies to

See Also