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# Tuple(Of T1, T2, T3, T4, T5, T6, T7, TRest).Item7 Property

.NET Framework 4.5

Gets the value of the current Tuple(Of T1, T2, T3, T4, T5, T6, T7, TRest) object's seventh component.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
Public ReadOnly Property Item7 As T7

#### Property Value

Type: T7
The value of the current Tuple(Of T1, T2, T3, T4, T5, T6, T7, TRest) object's seventh component.

You can dynamically determine the type of the Item7 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 seventh component of the 17-tuple is the population in 1900. The example uses the Item7 property to display the population value and to calculate the annual rate of population change between 1900 and 1910.

Module Example
Sub Main()
Dim from1980 As Tuple(Of Integer, Integer, Integer) =
Tuple.Create(1203339, 1027974, 951270)
Dim from1910 As New Tuple(Of Integer, Integer, Integer, Integer, Integer, Integer, Integer, _
Tuple(Of Integer, Integer, Integer)) _
(465766, 993078, 1568622, 1623452, 1849568, 1670144, 1511462, from1980)
Dim population As New Tuple(Of String, Integer, Integer, Integer, Integer, Integer, Integer, _
Tuple(Of Integer, Integer, Integer, Integer, Integer, Integer, Integer, Tuple(Of Integer, Integer, Integer))) _
("Detroit", 1860, 45619, 79577, 116340, 205876, 285704, from1910)

Console.WriteLine("Population of {0}", population.Item1)
Console.WriteLine()
Console.WriteLine("{0,5}  {1,14}  {2,10}", "Year", "Population", "Change")

Dim year As Integer = population.Item2
ShowPopulation(year, population.Item3)
year += 10
ShowPopulationChange(year, population.Item4, population.Item3)
year += 10
ShowPopulationChange(year, population.Item5, population.Item4)
year += 10
ShowPopulationChange(year, population.Item6, population.Item5)
year += 10
ShowPopulationChange(year, population.Item7, population.Item6)
year += 10
ShowPopulationChange(year, population.Rest.Item1, population.Item7)
year += 10
ShowPopulationChange(year, population.Rest.Item2, population.Rest.Item1)
year += 10
ShowPopulationChange(year, population.Rest.Item3, population.Rest.Item2)
year += 10
ShowPopulationChange(year, population.Rest.Item4, population.Rest.Item3)
year += 10
ShowPopulationChange(year, population.Rest.Item5, population.Rest.Item4)
year += 10
ShowPopulationChange(year, population.Rest.Item6, population.Rest.Item5)
year += 10
ShowPopulationChange(year, population.Rest.Item7, population.Rest.Item6)
year += 10
ShowPopulationChange(year, population.Rest.Rest.Item1, population.Rest.Item7)
year += 10
ShowPopulationChange(year, population.Rest.Rest.Item2, population.Rest.Rest.Item1)
year += 10
ShowPopulationChange(year, population.Rest.Rest.Item3, population.Rest.Rest.Item2)
End Sub

Private Sub ShowPopulationChange(ByVal year As Integer, ByVal newPopulation As Integer, ByVal oldPopulation As Integer)
Console.WriteLine("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation,
(newPopulation - oldPopulation) / oldPopulation / 10)
End Sub

Private Sub ShowPopulation(ByVal year As Integer, ByVal newPopulation As Integer)
Console.WriteLine("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation, "n/a")
End Sub
End Module
' 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 %

#### .NET Framework

Supported in: 4.5.1, 4.5, 4

Supported in: 4

#### Portable Class Library

Supported in: Portable Class Library

#### .NET for Windows Store apps

Supported in: Windows 8

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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