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Tuple(Of T1, T2, T3, T4, T5).Item1 Property

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

Namespace:  System
Assemblies:   System.Runtime (in System.Runtime.dll)
  mscorlib (in mscorlib.dll)

'Declaration
Public ReadOnly Property Item1 As T1

Property Value

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

You can dynamically determine the type of the Item1 component in one of two ways:

The following example defines an array of Tuple(Of T1, T2, T3, T4, T5) objects whose components contain the name of a state in the United States, its population in 1990 and 2000, its population change in this 10-year period, and the percentage change in its population. It then iterates through the array and displays the value of each component in a tuple.

Module Example
   Public Sub Main()
      ' Define array of tuples reflecting population change by state, 1990-2000. 
      Dim statesData() = 
          { Tuple.Create("California", 29760021, 33871648, 4111627, 13.8), 
            Tuple.Create("Illinois", 11430602, 12419293, 988691, 8.6), 
            Tuple.Create("Washington", 4866692, 5894121, 1027429, 21.1) }
      ' Display the items of each tuple
      Console.WriteLine("{0,-12}{1,18}{2,18}{3,15}{4,12}", "State", "Population 1990", _
                        "Population 2000", "Change", "% Change")
      Console.WriteLine()
      For Each stateData As Tuple(Of String, Integer, Integer, Integer, Double) In statesData
         Console.WriteLine("{0,-12}{1,18:N0}{2,18:N0}{3,15:N0}{4,12:P1}", _
                           stateData.Item1, stateData.Item2, _
                           stateData.Item3, stateData.Item4, stateData.Item5/100)      
      Next                                                                     
   End Sub 
End Module 
' The example displays the following output: 
'    State          Population 1990   Population 2000         Change    % Change 
'     
'    California          29,760,021        33,871,648      4,111,627      13.8 % 
'    Illinois            11,430,602        12,419,293        988,691       8.6 % 
'    Washington           4,866,692         5,894,121      1,027,429      21.1 %

.NET Framework

Supported in: 4.5.3, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 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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