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Lookup(Of TKey, TElement).GetEnumerator Method

Returns a generic enumerator that iterates through the Lookup(Of TKey, TElement).

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

'Declaration
Public Function GetEnumerator As IEnumerator(Of IGrouping(Of TKey, TElement))
'Usage
Dim instance As Lookup 
Dim returnValue As IEnumerator(Of IGrouping(Of TKey, TElement))

returnValue = instance.GetEnumerator()

Implements

IEnumerable(Of T).GetEnumerator

The following example demonstrates how to use GetEnumerator to iterate through the keys and values of a Lookup(Of TKey, TElement). This code example is part of a larger example provided for the Lookup(Of TKey, TElement) class.

Dim output As New System.Text.StringBuilder
' Iterate through each IGrouping in the Lookup and output the contents. 
For Each packageGroup As IGrouping(Of Char, String) In lookup
    ' Print the key value of the IGrouping.
    output.AppendLine(packageGroup.Key)
    ' Iterate through each value in the IGrouping and print its value. 
    For Each str As String In packageGroup
        output.AppendLine(String.Format("    {0}", str))
    Next 
Next 

' Display the output.
MsgBox(output.ToString())

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5

.NET Compact Framework

Supported in: 3.5

XNA Framework

Supported in: 3.0
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