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Tuple<T1, T2, T3, T4, T5, T6, T7, TRest>.Item5 Property

Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6, T7, TRest> object's fifth component.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public T5 Item5 { get; }

Property Value

Type: T5
The value of the current Tuple<T1, T2, T3, T4, T5, T6, T7, TRest> object's fifth component.

You can dynamically determine the type of the Item5 component in one of two ways:

The following example creates a 17-tuple object that contains population data for the city of Detroit, Michigan, from 1860 to 2000. The fifth component of the 17-tuple is the population in 1880. The example uses the Item5 property to display the population value and to calculate the annual rate of population change between 1880 and 1890.


using System;
using System.Windows.Media;

class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.FontFamily = new FontFamily("Courier New");

      Tuple<int, int, int> from1980 = Tuple.Create(1203339, 1027974, 951270);
      var from1910 = new Tuple<int, int, int, int, int, int, int, Tuple<int, int, int>>
          (465766, 993078, 1568622, 1623452, 1849568, 1670144, 1511462, from1980);
      var population = new Tuple<string, int, int, int, int, int, int,
          Tuple<int, int, int, int, int, int, int, Tuple<int, int, int>>>
          ("Detroit", 1860, 45619, 79577, 116340, 205876, 285704, from1910);

      outputBlock.Text += String.Format("Population of {0}\n\n", population.Item1);
      outputBlock.Text += String.Format("{0,5}  {1,14}  {2,10}\n", "Year", "Population", "Change");

      int year = population.Item2;
      ShowPopulation(outputBlock, year, population.Item3);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Item4, population.Item3);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Item5, population.Item4);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Item6, population.Item5);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Item7, population.Item6);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item1, population.Item7);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item2, population.Rest.Item1);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item3, population.Rest.Item2);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item4, population.Rest.Item3);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item5, population.Rest.Item4);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item6, population.Rest.Item5);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Item7, population.Rest.Item6);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Rest.Item1, population.Rest.Item7);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Rest.Item2, population.Rest.Rest.Item1);
      year += 10;
      ShowPopulationChange(outputBlock, year, population.Rest.Rest.Item3, population.Rest.Rest.Item2);
   }

   private static void ShowPopulationChange(System.Windows.Controls.TextBlock outputBlock, int year, int newPopulation, int oldPopulation)
   {
      outputBlock.Text += String.Format("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation,
                        ((double)(newPopulation - oldPopulation) / oldPopulation) / 10) + "\n";
   }

   private static void ShowPopulation(System.Windows.Controls.TextBlock outputBlock, int year, int newPopulation)
   {
      outputBlock.Text += String.Format("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation, "n/a") + "\n";
   }
}
// The example displays the following output:
//
//    Population of Detroit
//    Year      Population      Change
//    1860          45,619         n/a
//    1870          79,577      7.44 %
//    1880         116,340      4.62 %
//    1890         205,876      7.70 %
//    1900         285,704      3.88 %
//    1910         465,766      6.30 %
//    1920         993,078     11.32 %
//    1930       1,568,622      5.80 %
//    1940       1,623,452      0.35 %
//    1950       1,849,568      1.39 %
//    1960       1,670,144     -0.97 %
//    1970       1,511,462     -0.95 %
//    1980       1,203,339     -2.04 %
//    1990       1,027,974     -1.46 %
//    2000         951,270     -0.75 %


Silverlight

Supported in: 5, 4

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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