Gemstone Common Library
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# CollectionExtensionsGetColumn T Method

Gets a column of data out of a 2-dimensional array.

## Definition

Namespace: Gemstone.Collections.CollectionExtensions
Assembly: Gemstone.Common (in Gemstone.Common.dll) Version: 1.0.180 -- Release Build+914ca9e6d1cce46b614eb7013eba0303271cf6d8
C#
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    public static IEnumerable<T> GetColumn<T>(
    	this T[,]? source,
    	int columnIndex
    )

VB
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    <ExtensionAttribute>
    Public Shared Function GetColumn(Of T) (
    	source As T(,),
    	columnIndex As Integer
    ) As IEnumerable(Of T)

C++
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    public:
    [ExtensionAttribute]
    generic<typename T>
    static IEnumerable<T>^ GetColumn(
    	array<T,2>^ source,
    	int columnIndex
    )

JavaScript
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    JavaScript does not support generic types or methods.

#### Parameters

source T
  Source array.
columnIndex Int32
  Column index, i.e., dimension one value, to retrieve.

#### Type Parameters

T
  Type of array.

#### Return Value

IEnumerable T
Values from specified columnIndex.

#### Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type T. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

## See Also

#### Reference

CollectionExtensions Class
Gemstone.Collections.CollectionExtensions Namespace