SortedList.ContainsValue メソッド
アセンブリ: System (system.dll 内)

Dim instance As SortedList(Of TKey, TValue) Dim value As TValue Dim returnValue As Boolean returnValue = instance.ContainsValue(value)
戻り値
指定した値を持つ要素が SortedList に格納されている場合は true。それ以外の場合は false。

このメソッドは、値型 TValue の既定の比較演算子 Comparer.Default を使用して、値が等しいかどうかを確認します。Comparer.Default は、値型 TValue が System.IComparable を実装しているかどうかを調べ、利用可能な場合はその実装を使用します。それ以外の場合は、Comparer.Default によって、値型 TValue が System.IComparable を実装するかどうかをチェックします。値型 TValue がいずれのインターフェイスも実装しない場合、このメソッドは System.Object.Equals を使用します。
このメソッドは順次検索を実行します。したがって、平均検索時間は Count に比例します。つまり、このメソッドは O(n) 操作です。ここで、n は Count です。

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。


SortedList ジェネリック クラス
SortedList メンバ
System.Collections.Generic 名前空間
IndexOfValue
SortedList.ContainsKey メソッド
SortedList.ContainsValue メソッド
アセンブリ: mscorlib (mscorlib.dll 内)

Dim instance As SortedList Dim value As Object Dim returnValue As Boolean returnValue = instance.ContainsValue(value)
戻り値
指定した value を持つ要素が SortedList に格納されている場合は true。それ以外の場合は false。

SortedList の要素の値は、Equals メソッドを使用して、指定した値と比較されます。
このメソッドは順次検索を実行します。したがって、平均検索時間は Count に比例します。つまり、このメソッドは O(n) 操作です。ここで、n は Count です。

SortedList に特定の要素が格納されているかどうかを判断する方法の例を次に示します。
Imports System Imports System.Collections Imports Microsoft.VisualBasic Public Class SamplesSortedList Public Shared Sub Main() ' Creates and initializes a new SortedList. Dim mySL As New SortedList() mySL.Add(2, "two") mySL.Add(4, "four") mySL.Add(1, "one") mySL.Add(3, "three") mySL.Add(0, "zero") ' Displays the values of the SortedList. Console.WriteLine("The SortedList contains the following values:") PrintIndexAndKeysAndValues(mySL) ' Searches for a specific key. Dim myKey As Integer = 2 Dim msg As String If mySL.ContainsKey(myKey) Then msg = "in the SortedList" Else msg = "NOT in the SortedList" End If Console.WriteLine("The key ""{0}"" is {1}.", myKey, msg) myKey = 6 If mySL.ContainsKey(myKey) Then msg = "in the SortedList" Else msg = "NOT in the SortedList" End If Console.WriteLine("The key ""{0}"" is {1}.", myKey, msg) ' Searches for a specific value. Dim myValue As String = "three" If mySL.ContainsValue(myValue) Then msg = "in the SortedList" Else msg = "NOT in the SortedList" End If Console.WriteLine("The value ""{0}"" is {1}.", myValue, msg) myValue = "nine" If mySL.ContainsValue(myValue) Then msg = "in the SortedList" Else msg = "NOT in the SortedList" End If Console.WriteLine("The value ""{0}"" is {1}.", myValue, msg) End Sub Public Shared Sub PrintIndexAndKeysAndValues(myList As SortedList) Console.WriteLine(ControlChars.Tab & "-INDEX-" & ControlChars.Tab & _ "-KEY-" & ControlChars.Tab & "-VALUE-") Dim i As Integer For i = 0 To myList.Count - 1 Console.WriteLine(ControlChars.Tab & "[{0}]:" & ControlChars.Tab & _ "{1}" & ControlChars.Tab & "{2}", i, myList.GetKey(i), _ myList.GetByIndex(i)) Next i Console.WriteLine() End Sub End Class ' This code produces the following output. ' ' The SortedList contains the following values: ' -INDEX- -KEY- -VALUE- ' [0]: 0 zero ' [1]: 1 one ' [2]: 2 two ' [3]: 3 three ' [4]: 4 four ' ' The key "2" is in the SortedList. ' The key "6" is NOT in the SortedList. ' The value "three" is in the SortedList. ' The value "nine" is NOT in the SortedList.
using System; using System.Collections; public class SamplesSortedList { public static void Main() { // Creates and initializes a new SortedList. SortedList mySL = new SortedList(); mySL.Add( 2, "two" ); mySL.Add( 4, "four" ); mySL.Add( 1, "one" ); mySL.Add( 3, "three" ); mySL.Add( 0, "zero" ); // Displays the values of the SortedList. Console.WriteLine( "The SortedList contains the following values:" ); PrintIndexAndKeysAndValues( mySL ); // Searches for a specific key. int myKey = 2; Console.WriteLine( "The key \"{0}\" is {1}.", myKey, mySL.ContainsKey( myKey ) ? "in the SortedList" : "NOT in the SortedList" ); myKey = 6; Console.WriteLine( "The key \"{0}\" is {1}.", myKey, mySL.ContainsKey( myKey ) ? "in the SortedList" : "NOT in the SortedList" ); // Searches for a specific value. String myValue = "three"; Console.WriteLine( "The value \"{0}\" is {1}.", myValue, mySL.ContainsValue( myValue ) ? "in the SortedList" : "NOT in the SortedList" ); myValue = "nine"; Console.WriteLine( "The value \"{0}\" is {1}.", myValue, mySL.ContainsValue( myValue ) ? "in the SortedList" : "NOT in the SortedList" ); } public static void PrintIndexAndKeysAndValues( SortedList myList ) { Console.WriteLine( "\t-INDEX-\t-KEY-\t-VALUE-" ); for ( int i = 0; i < myList.Count; i++ ) { Console.WriteLine( "\t[{0}]:\t{1}\t{2}", i, myList.GetKey(i), myList.GetByIndex(i) ); } Console.WriteLine(); } } /* This code produces the following output. The SortedList contains the following values: -INDEX- -KEY- -VALUE- [0]: 0 zero [1]: 1 one [2]: 2 two [3]: 3 three [4]: 4 four The key "2" is in the SortedList. The key "6" is NOT in the SortedList. The value "three" is in the SortedList. The value "nine" is NOT in the SortedList. */
#using <system.dll> using namespace System; using namespace System::Collections; void PrintIndexAndKeysAndValues( SortedList^ myList ) { Console::WriteLine( "\t-INDEX-\t-KEY-\t-VALUE-" ); for ( int i = 0; i < myList->Count; i++ ) { Console::WriteLine( "\t[{0}]:\t{1}\t{2}", i, myList->GetKey( i ), myList->GetByIndex( i ) ); } Console::WriteLine(); } int main() { // Creates and initializes a new SortedList. SortedList^ mySL = gcnew SortedList; mySL->Add( 2, "two" ); mySL->Add( 4, "four" ); mySL->Add( 1, "one" ); mySL->Add( 3, "three" ); mySL->Add( (int^)0, "zero" ); // Displays the values of the SortedList. Console::WriteLine( "The SortedList contains the following values:" ); PrintIndexAndKeysAndValues( mySL ); // Searches for a specific key. int myKey = 2; Console::WriteLine( "The key \"{0}\" is {1}.", myKey, mySL->ContainsKey( myKey ) ? (String^)"in the SortedList" : "NOT in the SortedList" ); myKey = 6; Console::WriteLine( "The key \"{0}\" is {1}.", myKey, mySL->ContainsKey( myKey ) ? (String^)"in the SortedList" : "NOT in the SortedList" ); // Searches for a specific value. String^ myValue = "three"; Console::WriteLine( "The value \"{0}\" is {1}.", myValue, mySL->ContainsValue( myValue ) ? (String^)"in the SortedList" : "NOT in the SortedList" ); myValue = "nine"; Console::WriteLine( "The value \"{0}\" is {1}.", myValue, mySL->ContainsValue( myValue ) ? (String^)"in the SortedList" : "NOT in the SortedList" ); } /* This code produces the following output. The SortedList contains the following values: -INDEX- -KEY- -VALUE- [0]: 0 zero [1]: 1 one [2]: 2 two [3]: 3 three [4]: 4 four The key "2" is in the SortedList. The key "6" is NOT in the SortedList. The value "three" is in the SortedList. The value "nine" is NOT in the SortedList. */
import System.*; import System.Collections.*; public class SamplesSortedList { public static void main(String[] args) { // Creates and initializes a new SortedList. SortedList mySL = new SortedList(); mySL.Add((Int32)2, "two"); mySL.Add((Int32)4, "four"); mySL.Add((Int32)1, "one"); mySL.Add((Int32)3, "three"); mySL.Add((Int32)0, "zero"); // Displays the values of the SortedList. Console.WriteLine("The SortedList contains the following values:"); PrintIndexAndKeysAndValues(mySL); // Searches for a specific key. int myKey = 2; Console.WriteLine("The key \"{0}\" is {1}.", System.Convert.ToString(myKey), (mySL.ContainsKey((Int32)myKey)) ? "in the SortedList" : "NOT in the SortedList"); myKey = 6; Console.WriteLine("The key \"{0}\" is {1}.", System.Convert.ToString(myKey), (mySL.ContainsKey((Int32)myKey)) ? "in the SortedList" : "NOT in the SortedList"); // Searches for a specific value. String myValue = "three"; Console.WriteLine("The value \"{0}\" is {1}.", myValue, (mySL.ContainsValue(myValue)) ? "in the SortedList" : "NOT in the SortedList"); myValue = "nine"; Console.WriteLine("The value \"{0}\" is {1}.", myValue, (mySL.ContainsValue(myValue)) ? "in the SortedList" : "NOT in the SortedList"); } //main public static void PrintIndexAndKeysAndValues(SortedList myList) { Console.WriteLine("\t-INDEX-\t-KEY-\t-VALUE-"); for (int i = 0; i < myList.get_Count(); i++) { Console.WriteLine("\t[{0}]:\t{1}\t{2}", System.Convert.ToString(i), System.Convert.ToString(myList.GetKey(i)), System.Convert.ToString(myList.GetByIndex(i))); } Console.WriteLine(); } //PrintIndexAndKeysAndValues } //SamplesSortedList /* This code produces the following output. The SortedList contains the following values: -INDEX- -KEY- -VALUE- [0]: 0 zero [1]: 1 one [2]: 2 two [3]: 3 three [4]: 4 four The key "2" is in the SortedList. The key "6" is NOT in the SortedList. The value "three" is in the SortedList. The value "nine" is NOT in the SortedList. */

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。


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