CaseInsensitiveComparer コンストラクター
定義
CaseInsensitiveComparer クラスの新しいインスタンスを初期化します。Initializes a new instance of the CaseInsensitiveComparer class.
オーバーロード
| CaseInsensitiveComparer() |
現在のスレッドの CaseInsensitiveComparer を使用して、CurrentCulture クラスの新しいインスタンスを初期化します。Initializes a new instance of the CaseInsensitiveComparer class using the CurrentCulture of the current thread. |
| CaseInsensitiveComparer(CultureInfo) |
指定した CultureInfo を使用して CaseInsensitiveComparer クラスの新しいインスタンスを初期化します。Initializes a new instance of the CaseInsensitiveComparer class using the specified CultureInfo. |
CaseInsensitiveComparer()
現在のスレッドの CaseInsensitiveComparer を使用して、CurrentCulture クラスの新しいインスタンスを初期化します。Initializes a new instance of the CaseInsensitiveComparer class using the CurrentCulture of the current thread.
public:
CaseInsensitiveComparer();public CaseInsensitiveComparer ();Public Sub New ()例
次のコード例では、大文字と小文字を区別するハッシュテーブルと大文字と小文字を区別しないハッシュテーブルを作成し、両方に同じ要素が含まれている場合でも、それらの動作の違いを示します。The following code example creates a case-sensitive hash table and a case-insensitive hash table and demonstrates the difference in their behavior, even if both contain the same elements.
using namespace System;
using namespace System::Collections;
using namespace System::Globalization;
int main()
{
// Create a Hashtable using the default hash code provider and the default comparer.
Hashtable^ myHT1 = gcnew Hashtable;
myHT1->Add( "FIRST", "Hello" );
myHT1->Add( "SECOND", "World" );
myHT1->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the culture of the current thread.
Hashtable^ myHT2 = gcnew Hashtable( gcnew CaseInsensitiveHashCodeProvider,gcnew CaseInsensitiveComparer );
myHT2->Add( "FIRST", "Hello" );
myHT2->Add( "SECOND", "World" );
myHT2->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the InvariantCulture.
Hashtable^ myHT3 = gcnew Hashtable( CaseInsensitiveHashCodeProvider::DefaultInvariant,CaseInsensitiveComparer::DefaultInvariant );
myHT3->Add( "FIRST", "Hello" );
myHT3->Add( "SECOND", "World" );
myHT3->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
CultureInfo^ myCul = gcnew CultureInfo( "tr-TR" );
Hashtable^ myHT4 = gcnew Hashtable( gcnew CaseInsensitiveHashCodeProvider( myCul ),gcnew CaseInsensitiveComparer( myCul ) );
myHT4->Add( "FIRST", "Hello" );
myHT4->Add( "SECOND", "World" );
myHT4->Add( "THIRD", "!" );
// Search for a key in each hashtable.
Console::WriteLine( "first is in myHT1: {0}", myHT1->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT2: {0}", myHT2->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT3: {0}", myHT3->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT4: {0}", myHT4->ContainsKey( "first" ) );
}
/*
This code produces the following output. Results vary depending on the system's culture settings.
first is in myHT1: False
first is in myHT2: True
first is in myHT3: True
first is in myHT4: False
*/
using System;
using System.Collections;
using System.Globalization;
public class SamplesHashtable {
public static void Main() {
// Create a Hashtable using the default hash code provider and the default comparer.
Hashtable myHT1 = new Hashtable();
myHT1.Add("FIRST", "Hello");
myHT1.Add("SECOND", "World");
myHT1.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the culture of the current thread.
Hashtable myHT2 = new Hashtable( new CaseInsensitiveHashCodeProvider(), new CaseInsensitiveComparer() );
myHT2.Add("FIRST", "Hello");
myHT2.Add("SECOND", "World");
myHT2.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the InvariantCulture.
Hashtable myHT3 = new Hashtable( CaseInsensitiveHashCodeProvider.DefaultInvariant, CaseInsensitiveComparer.DefaultInvariant );
myHT3.Add("FIRST", "Hello");
myHT3.Add("SECOND", "World");
myHT3.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
CultureInfo myCul = new CultureInfo( "tr-TR" );
Hashtable myHT4 = new Hashtable( new CaseInsensitiveHashCodeProvider( myCul ), new CaseInsensitiveComparer( myCul ) );
myHT4.Add("FIRST", "Hello");
myHT4.Add("SECOND", "World");
myHT4.Add("THIRD", "!");
// Search for a key in each hashtable.
Console.WriteLine( "first is in myHT1: {0}", myHT1.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT2: {0}", myHT2.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT3: {0}", myHT3.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT4: {0}", myHT4.ContainsKey( "first" ) );
}
}
/*
This code produces the following output. Results vary depending on the system's culture settings.
first is in myHT1: False
first is in myHT2: True
first is in myHT3: True
first is in myHT4: False
*/
Imports System.Collections
Imports System.Globalization
Public Class SamplesHashtable
Public Shared Sub Main()
' Create a Hashtable using the default hash code provider and the default comparer.
Dim myHT1 As New Hashtable()
myHT1.Add("FIRST", "Hello")
myHT1.Add("SECOND", "World")
myHT1.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the culture of the current thread.
Dim myHT2 As New Hashtable(New CaseInsensitiveHashCodeProvider(), New CaseInsensitiveComparer())
myHT2.Add("FIRST", "Hello")
myHT2.Add("SECOND", "World")
myHT2.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the InvariantCulture.
Dim myHT3 As New Hashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, CaseInsensitiveComparer.DefaultInvariant)
myHT3.Add("FIRST", "Hello")
myHT3.Add("SECOND", "World")
myHT3.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
Dim myCul As New CultureInfo("tr-TR")
Dim myHT4 As New Hashtable(New CaseInsensitiveHashCodeProvider(myCul), New CaseInsensitiveComparer(myCul))
myHT4.Add("FIRST", "Hello")
myHT4.Add("SECOND", "World")
myHT4.Add("THIRD", "!")
' Search for a key in each hashtable.
Console.WriteLine("first is in myHT1: {0}", myHT1.ContainsKey("first"))
Console.WriteLine("first is in myHT2: {0}", myHT2.ContainsKey("first"))
Console.WriteLine("first is in myHT3: {0}", myHT3.ContainsKey("first"))
Console.WriteLine("first is in myHT4: {0}", myHT4.ContainsKey("first"))
End Sub
End Class
'This code produces the following output. Results vary depending on the system's culture settings.
'
'first is in myHT1: False
'first is in myHT2: True
'first is in myHT3: True
'first is in myHT4: False
注釈
CaseInsensitiveComparerこのコンストラクターを使用してインスタンスが作成されると、 Thread.CurrentCulture 現在のスレッドのが保存されます。When the CaseInsensitiveComparer instance is created using this constructor, the Thread.CurrentCulture of the current thread is saved. 比較手順では、保存したカルチャを使用して、並べ替え順序と大文字小文字の規則を決定します。したがって、カルチャによっては、文字列比較の結果が異なる場合があります。Comparison procedures use the saved culture to determine the sort order and casing rules; therefore, string comparisons might have different results depending on the culture. カルチャ固有の比較の詳細については、「 System.Globalization 名前空間と グローバリゼーションおよびローカリゼーション」を参照してください。For more information on culture-specific comparisons, see the System.Globalization namespace and Globalization and Localization.
こちらもご覧ください
- CurrentCulture
- CultureInfo
- CompareInfo
- カルチャを認識しないコレクションの操作の実行Performing Culture-Insensitive String Operations in Collections
適用対象
CaseInsensitiveComparer(CultureInfo)
指定した CultureInfo を使用して CaseInsensitiveComparer クラスの新しいインスタンスを初期化します。Initializes a new instance of the CaseInsensitiveComparer class using the specified CultureInfo.
public:
CaseInsensitiveComparer(System::Globalization::CultureInfo ^ culture);public CaseInsensitiveComparer (System.Globalization.CultureInfo culture);new System.Collections.CaseInsensitiveComparer : System.Globalization.CultureInfo -> System.Collections.CaseInsensitiveComparerPublic Sub New (culture As CultureInfo)パラメーター
- culture
- CultureInfo
新しい CultureInfo で使用する CaseInsensitiveComparer。The CultureInfo to use for the new CaseInsensitiveComparer.
例外
culture が nullです。culture is null.
例
次のコード例では、大文字と小文字を区別するハッシュテーブルと大文字と小文字を区別しないハッシュテーブルを作成し、両方に同じ要素が含まれている場合でも、それらの動作の違いを示します。The following code example creates a case-sensitive hash table and a case-insensitive hash table and demonstrates the difference in their behavior, even if both contain the same elements.
using namespace System;
using namespace System::Collections;
using namespace System::Globalization;
int main()
{
// Create a Hashtable using the default hash code provider and the default comparer.
Hashtable^ myHT1 = gcnew Hashtable;
myHT1->Add( "FIRST", "Hello" );
myHT1->Add( "SECOND", "World" );
myHT1->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the culture of the current thread.
Hashtable^ myHT2 = gcnew Hashtable( gcnew CaseInsensitiveHashCodeProvider,gcnew CaseInsensitiveComparer );
myHT2->Add( "FIRST", "Hello" );
myHT2->Add( "SECOND", "World" );
myHT2->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the InvariantCulture.
Hashtable^ myHT3 = gcnew Hashtable( CaseInsensitiveHashCodeProvider::DefaultInvariant,CaseInsensitiveComparer::DefaultInvariant );
myHT3->Add( "FIRST", "Hello" );
myHT3->Add( "SECOND", "World" );
myHT3->Add( "THIRD", "!" );
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
CultureInfo^ myCul = gcnew CultureInfo( "tr-TR" );
Hashtable^ myHT4 = gcnew Hashtable( gcnew CaseInsensitiveHashCodeProvider( myCul ),gcnew CaseInsensitiveComparer( myCul ) );
myHT4->Add( "FIRST", "Hello" );
myHT4->Add( "SECOND", "World" );
myHT4->Add( "THIRD", "!" );
// Search for a key in each hashtable.
Console::WriteLine( "first is in myHT1: {0}", myHT1->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT2: {0}", myHT2->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT3: {0}", myHT3->ContainsKey( "first" ) );
Console::WriteLine( "first is in myHT4: {0}", myHT4->ContainsKey( "first" ) );
}
/*
This code produces the following output. Results vary depending on the system's culture settings.
first is in myHT1: False
first is in myHT2: True
first is in myHT3: True
first is in myHT4: False
*/
using System;
using System.Collections;
using System.Globalization;
public class SamplesHashtable {
public static void Main() {
// Create a Hashtable using the default hash code provider and the default comparer.
Hashtable myHT1 = new Hashtable();
myHT1.Add("FIRST", "Hello");
myHT1.Add("SECOND", "World");
myHT1.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the culture of the current thread.
Hashtable myHT2 = new Hashtable( new CaseInsensitiveHashCodeProvider(), new CaseInsensitiveComparer() );
myHT2.Add("FIRST", "Hello");
myHT2.Add("SECOND", "World");
myHT2.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the InvariantCulture.
Hashtable myHT3 = new Hashtable( CaseInsensitiveHashCodeProvider.DefaultInvariant, CaseInsensitiveComparer.DefaultInvariant );
myHT3.Add("FIRST", "Hello");
myHT3.Add("SECOND", "World");
myHT3.Add("THIRD", "!");
// Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
// based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
CultureInfo myCul = new CultureInfo( "tr-TR" );
Hashtable myHT4 = new Hashtable( new CaseInsensitiveHashCodeProvider( myCul ), new CaseInsensitiveComparer( myCul ) );
myHT4.Add("FIRST", "Hello");
myHT4.Add("SECOND", "World");
myHT4.Add("THIRD", "!");
// Search for a key in each hashtable.
Console.WriteLine( "first is in myHT1: {0}", myHT1.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT2: {0}", myHT2.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT3: {0}", myHT3.ContainsKey( "first" ) );
Console.WriteLine( "first is in myHT4: {0}", myHT4.ContainsKey( "first" ) );
}
}
/*
This code produces the following output. Results vary depending on the system's culture settings.
first is in myHT1: False
first is in myHT2: True
first is in myHT3: True
first is in myHT4: False
*/
Imports System.Collections
Imports System.Globalization
Public Class SamplesHashtable
Public Shared Sub Main()
' Create a Hashtable using the default hash code provider and the default comparer.
Dim myHT1 As New Hashtable()
myHT1.Add("FIRST", "Hello")
myHT1.Add("SECOND", "World")
myHT1.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the culture of the current thread.
Dim myHT2 As New Hashtable(New CaseInsensitiveHashCodeProvider(), New CaseInsensitiveComparer())
myHT2.Add("FIRST", "Hello")
myHT2.Add("SECOND", "World")
myHT2.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the InvariantCulture.
Dim myHT3 As New Hashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, CaseInsensitiveComparer.DefaultInvariant)
myHT3.Add("FIRST", "Hello")
myHT3.Add("SECOND", "World")
myHT3.Add("THIRD", "!")
' Create a Hashtable using a case-insensitive code provider and a case-insensitive comparer,
' based on the Turkish culture (tr-TR), where "I" is not the uppercase version of "i".
Dim myCul As New CultureInfo("tr-TR")
Dim myHT4 As New Hashtable(New CaseInsensitiveHashCodeProvider(myCul), New CaseInsensitiveComparer(myCul))
myHT4.Add("FIRST", "Hello")
myHT4.Add("SECOND", "World")
myHT4.Add("THIRD", "!")
' Search for a key in each hashtable.
Console.WriteLine("first is in myHT1: {0}", myHT1.ContainsKey("first"))
Console.WriteLine("first is in myHT2: {0}", myHT2.ContainsKey("first"))
Console.WriteLine("first is in myHT3: {0}", myHT3.ContainsKey("first"))
Console.WriteLine("first is in myHT4: {0}", myHT4.ContainsKey("first"))
End Sub
End Class
'This code produces the following output. Results vary depending on the system's culture settings.
'
'first is in myHT1: False
'first is in myHT2: True
'first is in myHT3: True
'first is in myHT4: False
注釈
比較プロシージャでは、指定されたを使用して、 System.Globalization.CultureInfo 並べ替え順序と大文字小文字の規則を決定します。Comparison procedures use the specified System.Globalization.CultureInfo to determine the sort order and casing rules. 文字列比較の結果は、カルチャによって異なる場合があります。String comparisons might have different results depending on the culture. カルチャ固有の比較の詳細については、「 System.Globalization 名前空間と グローバリゼーションおよびローカリゼーション」を参照してください。For more information on culture-specific comparisons, see the System.Globalization namespace and Globalization and Localization.
こちらもご覧ください
- CultureInfo
- CompareInfo
- カルチャを認識しないコレクションの操作の実行Performing Culture-Insensitive String Operations in Collections