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Lookup<TKey, TElement>.GetEnumerator Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Returns a generic enumerator that iterates through the Lookup<TKey, TElement>.

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

Syntax

'Declaration
Public Function GetEnumerator As IEnumerator(Of IGrouping(Of TKey, TElement))

public IEnumerator<IGrouping<TKey, TElement>> GetEnumerator()

Implements

IEnumerable<T>.GetEnumerator()

Examples

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

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

' Display the output.
outputBlock.Text &= output.ToString() & vbCrLf

// Iterate through each Example in the Lookup and output the contents.
foreach (IGrouping<char, string> packageGroup in lookup)
{
   // Print the key value of the Example.
   outputBlock.Text += packageGroup.Key + "\n";
   // Iterate through each value in the Example and print its value.
   foreach (string str in packageGroup)
      outputBlock.Text += String.Format("    {0}", str) + "\n";
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

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