SortedList<TKey,TValue>.IDictionary.Values 属性
定义
获取一个 ICollection,它包含 IDictionary 中的值。Gets an ICollection containing the values in the IDictionary.
property System::Collections::ICollection ^ System::Collections::IDictionary::Values { System::Collections::ICollection ^ get(); };
System.Collections.ICollection System.Collections.IDictionary.Values { get; }
member this.System.Collections.IDictionary.Values : System.Collections.ICollection
ReadOnly Property Values As ICollection Implements IDictionary.Values
属性值
一个 ICollection,它包含 IDictionary 中的值。An ICollection containing the values in the IDictionary.
实现
示例
下面的代码示例演示如何将接口的 IDictionary.Values 属性 System.Collections.IDictionary 与结合使用 SortedList<TKey,TValue> 来列出已排序列表中的值。The following code example shows how to use the IDictionary.Values property of the System.Collections.IDictionary interface with a SortedList<TKey,TValue>, to list the values in the sorted list. 该示例还演示如何枚举排序列表中的键/值对;请注意,接口的枚举器将 System.Collections.IDictionary 返回 DictionaryEntry 对象,而不是 KeyValuePair<TKey,TValue> 对象。The example also shows how to enumerate the key/value pairs in the sorted list; note that the enumerator for the System.Collections.IDictionary interface returns DictionaryEntry objects rather than KeyValuePair<TKey,TValue> objects.
此代码示例摘自为方法提供的更大示例,包括输出 IDictionary.Add 。The code example is part of a larger example, including output, provided for the IDictionary.Add method.
using System;
using System.Collections;
using System.Collections.Generic;
public class Example
{
public static void Main()
{
// Create a new sorted list of strings, with string keys,
// and access it using the IDictionary interface.
//
IDictionary openWith = new SortedList<string, string>();
// Add some elements to the sorted list. There are no
// duplicate keys, but some of the values are duplicates.
// IDictionary.Add throws an exception if incorrect types
// are supplied for key or value.
openWith.Add("txt", "notepad.exe");
openWith.Add("bmp", "paint.exe");
openWith.Add("dib", "paint.exe");
openWith.Add("rtf", "wordpad.exe");
Imports System.Collections
Imports System.Collections.Generic
Public Class Example
Public Shared Sub Main()
' Create a new sorted list of strings, with string keys,
' and access it using the IDictionary interface.
'
Dim openWith As IDictionary = _
New sortedList(Of String, String)
' Add some elements to the sorted list. There are no
' duplicate keys, but some of the values are duplicates.
' IDictionary.Add throws an exception if incorrect types
' are supplied for key or value.
openWith.Add("txt", "notepad.exe")
openWith.Add("bmp", "paint.exe")
openWith.Add("dib", "paint.exe")
openWith.Add("rtf", "wordpad.exe")
// To get the values alone, use the Values property.
ICollection icoll = openWith.Values;
// The elements of the collection are strongly typed
// with the type that was specified for values,
// even though the ICollection interface is not strongly
// typed.
Console.WriteLine();
foreach( string s in icoll )
{
Console.WriteLine("Value = {0}", s);
}
' To get the values alone, use the Values property.
Dim icoll As ICollection = openWith.Values
' The elements of the collection are strongly typed
' with the type that was specified for sorted list values,
' even though the ICollection interface is not strongly
' typed.
Console.WriteLine()
For Each s As String In icoll
Console.WriteLine("Value = {0}", s)
Next s
// When you use foreach to enumerate sorted list elements
// with the IDictionary interface, the elements are retrieved
// as DictionaryEntry objects instead of KeyValuePair objects.
Console.WriteLine();
foreach( DictionaryEntry de in openWith )
{
Console.WriteLine("Key = {0}, Value = {1}",
de.Key, de.Value);
}
' When you use foreach to enumerate sorted list elements
' with the IDictionary interface, the elements are retrieved
' as DictionaryEntry objects instead of KeyValuePair objects.
Console.WriteLine()
For Each de As DictionaryEntry In openWith
Console.WriteLine("Key = {0}, Value = {1}", _
de.Key, de.Value)
Next
}
}
End Sub
End Class
注解
中值的顺序与中的 ICollection 顺序相同 SortedList<TKey,TValue> 。The order of the values in the ICollection is the same as the order in the SortedList<TKey,TValue>.
检索此属性的值的运算复杂度为 O(1)。Retrieving the value of this property is an O(1) operation.