Dictionary<TKey,TValue>.Values 属性

定义

获取包含 Dictionary<TKey,TValue> 中的值的集合。Gets a collection containing the values in the Dictionary<TKey,TValue>.

public:
 property System::Collections::Generic::Dictionary<TKey, TValue>::ValueCollection ^ Values { System::Collections::Generic::Dictionary<TKey, TValue>::ValueCollection ^ get(); };
public System.Collections.Generic.Dictionary<TKey,TValue>.ValueCollection Values { get; }
member this.Values : System.Collections.Generic.Dictionary<'Key, 'Value>.ValueCollection
Public ReadOnly Property Values As Dictionary(Of TKey, TValue).ValueCollection

属性值

Dictionary<TKey,TValue>.ValueCollection

包含 Dictionary<TKey,TValue>.ValueCollection 中的值的 Dictionary<TKey,TValue>A Dictionary<TKey,TValue>.ValueCollection containing the values in the Dictionary<TKey,TValue>.

示例

此代码示例演示如何使用属性枚举字典中的值 Values ,以及如何枚举字典中的键和值。This code example shows how to enumerate the values in the dictionary using the Values property, and how to enumerate the keys and values in the dictionary.

此代码示例是为类提供的更大示例的一部分 Dictionary<TKey,TValue> (openWith 是此示例中使用的字典的名称) 。This code example is part of a larger example provided for the Dictionary<TKey,TValue> class (openWith is the name of the Dictionary used in this example).

// To get the values alone, use the Values property.
Dictionary<String^, String^>::ValueCollection^ valueColl =
    openWith->Values;

// The elements of the ValueCollection are strongly typed
// with the type that was specified for dictionary values.
Console::WriteLine();
for each( String^ s in valueColl )
{
    Console::WriteLine("Value = {0}", s);
}
// To get the values alone, use the Values property.
Dictionary<string, string>.ValueCollection valueColl =
    openWith.Values;

// The elements of the ValueCollection are strongly typed
// with the type that was specified for dictionary values.
Console.WriteLine();
foreach( string s in valueColl )
{
    Console.WriteLine("Value = {0}", s);
}
' To get the values alone, use the Values property.
Dim valueColl As _
    Dictionary(Of String, String).ValueCollection = _
    openWith.Values

' The elements of the ValueCollection are strongly typed
' with the type that was specified for dictionary values.
Console.WriteLine()
For Each s As String In  valueColl
    Console.WriteLine("Value = {0}", s)
Next s
// When you use foreach to enumerate dictionary elements,
// the elements are retrieved as KeyValuePair objects.
Console::WriteLine();
for each( KeyValuePair<String^, String^> kvp in openWith )
{
    Console::WriteLine("Key = {0}, Value = {1}",
        kvp.Key, kvp.Value);
}
// 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);
}
' 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

注解

Dictionary<TKey,TValue>.ValueCollection 中的值的顺序未指定,但与 Dictionary<TKey,TValue>.KeyCollection 属性返回的 Keys 中的关联键顺序相同。The order of the values in the Dictionary<TKey,TValue>.ValueCollection is unspecified, but it is the same order as the associated keys in the Dictionary<TKey,TValue>.KeyCollection returned by the Keys property.

返回的不 Dictionary<TKey,TValue>.ValueCollection 是静态副本; 而是 Dictionary<TKey,TValue>.ValueCollection 指返回到原始中的值 Dictionary<TKey,TValue>The returned Dictionary<TKey,TValue>.ValueCollection is not a static copy; instead, the Dictionary<TKey,TValue>.ValueCollection refers back to the values in the original Dictionary<TKey,TValue>. 因此,对的更改将 Dictionary<TKey,TValue> 继续反映在中 Dictionary<TKey,TValue>.ValueCollectionTherefore, changes to the Dictionary<TKey,TValue> continue to be reflected in the Dictionary<TKey,TValue>.ValueCollection.

获取此属性的值是一个 O (1) 操作。Getting the value of this property is an O(1) operation.

适用于

另请参阅