The Dictionary<(Of <(TKey, TValue>)>)..::.Enumerator..::.Current property returns an instance of this type.

The foreach statement of the C# language (for each in C++, For Each in Visual Basic) requires the type of the elements in the collection. Since each element of a collection based on IDictionary<(Of <(TKey, TValue>)>) is a key/value pair, the element type is not the type of the key or the type of the value. Instead, the element type is KeyValuePair<(Of <(TKey, TValue>)>). For example:

foreach (KeyValuePair<int, string> kvp in myDictionary) {...}

for each (KeyValuePair<int, String^> kvp in myDictionary) {...}

For Each kvp As KeyValuePair(Of Integer, String) In myDictionary
    ...
Next kvp

The foreach statement is a wrapper around the enumerator, which allows only reading from, not writing to, the collection.

The following code example shows how to enumerate the keys and values in a dictionary, using the KeyValuePair<(Of <(TKey, TValue>)>) structure.

This code is part of a larger example provided for the Dictionary<(Of <(TKey, TValue>)>) class.

' When you use foreach to enumerate dictionary elements,
' the elements are retrieved as KeyValuePair objects.
Console.WriteLine()
For Each kvp As KeyValuePair(Of String, String) In openWith
    Console.WriteLine("Key = {0}, Value = {1}", _
        kvp.Key, kvp.Value)
Next kvp

// When you use foreach to enumerate dictionary elements,
// the elements are retrieved as KeyValuePair objects.
Console.WriteLine();
foreach( KeyValuePair<string, string> kvp in openWith )
{
    Console.WriteLine("Key = {0}, Value = {1}", 
        kvp.Key, kvp.Value);
}

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360

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

.NET Compact Framework

XNA Framework

Reference