HybridDictionary Construtores
Definição
Importante
Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.
Inicializa uma nova instância da classe HybridDictionary.
Sobrecargas
| HybridDictionary() |
Cria um HybridDictionary vazio que diferencia maiúsculas de minúsculas. |
| HybridDictionary(Boolean) |
Cria um HybridDictionary vazio com a diferenciação de maiúsculas e minúsculas especificada. |
| HybridDictionary(Int32) |
Cria um HybridDictionary que diferencia maiúsculas de minúsculas com o tamanho inicial especificado. |
| HybridDictionary(Int32, Boolean) |
Cria um HybridDictionary com o tamanho inicial e a diferenciação de maiúsculas e minúsculas especificados. |
HybridDictionary()
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
Cria um HybridDictionary vazio que diferencia maiúsculas de minúsculas.
public:
HybridDictionary();public HybridDictionary ();Public Sub New ()Exemplos
O exemplo de código a seguir demonstra várias das propriedades e métodos de HybridDictionary.
#using <System.dll>
using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;
void PrintKeysAndValues1( IDictionary^ myCol );
void PrintKeysAndValues2( IDictionary^ myCol );
void PrintKeysAndValues3( HybridDictionary^ myCol );
int main()
{
// Creates and initializes a new HybridDictionary.
HybridDictionary^ myCol = gcnew HybridDictionary;
myCol->Add( "Braeburn Apples", "1.49" );
myCol->Add( "Fuji Apples", "1.29" );
myCol->Add( "Gala Apples", "1.49" );
myCol->Add( "Golden Delicious Apples", "1.29" );
myCol->Add( "Granny Smith Apples", "0.89" );
myCol->Add( "Red Delicious Apples", "0.99" );
myCol->Add( "Plantain Bananas", "1.49" );
myCol->Add( "Yellow Bananas", "0.79" );
myCol->Add( "Strawberries", "3.33" );
myCol->Add( "Cranberries", "5.98" );
myCol->Add( "Navel Oranges", "1.29" );
myCol->Add( "Grapes", "1.99" );
myCol->Add( "Honeydew Melon", "0.59" );
myCol->Add( "Seedless Watermelon", "0.49" );
myCol->Add( "Pineapple", "1.49" );
myCol->Add( "Nectarine", "1.99" );
myCol->Add( "Plums", "1.69" );
myCol->Add( "Peaches", "1.99" );
// Display the contents of the collection using for each. This is the preferred method.
Console::WriteLine( "Displays the elements using for each:" );
PrintKeysAndValues1( myCol );
// Display the contents of the collection using the enumerator.
Console::WriteLine( "Displays the elements using the IDictionaryEnumerator:" );
PrintKeysAndValues2( myCol );
// Display the contents of the collection using the Keys, Values, Count, and Item properties.
Console::WriteLine( "Displays the elements using the Keys, Values, Count, and Item properties:" );
PrintKeysAndValues3( myCol );
// Copies the HybridDictionary to an array with DictionaryEntry elements.
array<DictionaryEntry>^myArr = gcnew array<DictionaryEntry>(myCol->Count);
myCol->CopyTo( myArr, 0 );
// Displays the values in the array.
Console::WriteLine( "Displays the elements in the array:" );
Console::WriteLine( " KEY VALUE" );
for ( int i = 0; i < myArr->Length; i++ )
Console::WriteLine( " {0,-25} {1}", myArr[ i ].Key, myArr[ i ].Value );
Console::WriteLine();
// Searches for a key.
if ( myCol->Contains( "Kiwis" ) )
Console::WriteLine( "The collection contains the key \"Kiwis\"." );
else
Console::WriteLine( "The collection does not contain the key \"Kiwis\"." );
Console::WriteLine();
// Deletes a key.
myCol->Remove( "Plums" );
Console::WriteLine( "The collection contains the following elements after removing \"Plums\":" );
PrintKeysAndValues1( myCol );
// Clears the entire collection.
myCol->Clear();
Console::WriteLine( "The collection contains the following elements after it is cleared:" );
PrintKeysAndValues1( myCol );
}
// Uses the for each statement which hides the complexity of the enumerator.
// NOTE: The for each statement is the preferred way of enumerating the contents of a collection.
void PrintKeysAndValues1( IDictionary^ myCol ) {
Console::WriteLine( " KEY VALUE" );
for each ( DictionaryEntry^ de in myCol )
Console::WriteLine( " {0,-25} {1}", de->Key, de->Value );
Console::WriteLine();
}
// Uses the enumerator.
void PrintKeysAndValues2( IDictionary^ myCol )
{
IDictionaryEnumerator^ myEnumerator = myCol->GetEnumerator();
Console::WriteLine( " KEY VALUE" );
while ( myEnumerator->MoveNext() )
Console::WriteLine( " {0,-25} {1}", myEnumerator->Key, myEnumerator->Value );
Console::WriteLine();
}
// Uses the Keys, Values, Count, and Item properties.
void PrintKeysAndValues3( HybridDictionary^ myCol )
{
array<String^>^myKeys = gcnew array<String^>(myCol->Count);
myCol->Keys->CopyTo( myKeys, 0 );
Console::WriteLine( " INDEX KEY VALUE" );
for ( int i = 0; i < myCol->Count; i++ )
Console::WriteLine( " {0,-5} {1,-25} {2}", i, myKeys[ i ], myCol[ myKeys[ i ] ] );
Console::WriteLine();
}
/*
This code produces output similar to the following:
Displays the elements using for each:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
Displays the elements using the IDictionaryEnumerator:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
Displays the elements using the Keys, Values, Count, and Item properties:
INDEX KEY VALUE
0 Strawberries 3.33
1 Yellow Bananas 0.79
2 Cranberries 5.98
3 Grapes 1.99
4 Granny Smith Apples 0.89
5 Seedless Watermelon 0.49
6 Honeydew Melon 0.59
7 Red Delicious Apples 0.99
8 Navel Oranges 1.29
9 Fuji Apples 1.29
10 Plantain Bananas 1.49
11 Gala Apples 1.49
12 Pineapple 1.49
13 Plums 1.69
14 Braeburn Apples 1.49
15 Peaches 1.99
16 Golden Delicious Apples 1.29
17 Nectarine 1.99
Displays the elements in the array:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
The collection does not contain the key "Kiwis".
The collection contains the following elements after removing "Plums":
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
The collection contains the following elements after it is cleared:
KEY VALUE
*/
using System;
using System.Collections;
using System.Collections.Specialized;
public class SamplesHybridDictionary {
public static void Main() {
// Creates and initializes a new HybridDictionary.
HybridDictionary myCol = new HybridDictionary();
myCol.Add( "Braeburn Apples", "1.49" );
myCol.Add( "Fuji Apples", "1.29" );
myCol.Add( "Gala Apples", "1.49" );
myCol.Add( "Golden Delicious Apples", "1.29" );
myCol.Add( "Granny Smith Apples", "0.89" );
myCol.Add( "Red Delicious Apples", "0.99" );
myCol.Add( "Plantain Bananas", "1.49" );
myCol.Add( "Yellow Bananas", "0.79" );
myCol.Add( "Strawberries", "3.33" );
myCol.Add( "Cranberries", "5.98" );
myCol.Add( "Navel Oranges", "1.29" );
myCol.Add( "Grapes", "1.99" );
myCol.Add( "Honeydew Melon", "0.59" );
myCol.Add( "Seedless Watermelon", "0.49" );
myCol.Add( "Pineapple", "1.49" );
myCol.Add( "Nectarine", "1.99" );
myCol.Add( "Plums", "1.69" );
myCol.Add( "Peaches", "1.99" );
// Display the contents of the collection using foreach. This is the preferred method.
Console.WriteLine( "Displays the elements using foreach:" );
PrintKeysAndValues1( myCol );
// Display the contents of the collection using the enumerator.
Console.WriteLine( "Displays the elements using the IDictionaryEnumerator:" );
PrintKeysAndValues2( myCol );
// Display the contents of the collection using the Keys, Values, Count, and Item properties.
Console.WriteLine( "Displays the elements using the Keys, Values, Count, and Item properties:" );
PrintKeysAndValues3( myCol );
// Copies the HybridDictionary to an array with DictionaryEntry elements.
DictionaryEntry[] myArr = new DictionaryEntry[myCol.Count];
myCol.CopyTo( myArr, 0 );
// Displays the values in the array.
Console.WriteLine( "Displays the elements in the array:" );
Console.WriteLine( " KEY VALUE" );
for ( int i = 0; i < myArr.Length; i++ )
Console.WriteLine( " {0,-25} {1}", myArr[i].Key, myArr[i].Value );
Console.WriteLine();
// Searches for a key.
if ( myCol.Contains( "Kiwis" ) )
Console.WriteLine( "The collection contains the key \"Kiwis\"." );
else
Console.WriteLine( "The collection does not contain the key \"Kiwis\"." );
Console.WriteLine();
// Deletes a key.
myCol.Remove( "Plums" );
Console.WriteLine( "The collection contains the following elements after removing \"Plums\":" );
PrintKeysAndValues1( myCol );
// Clears the entire collection.
myCol.Clear();
Console.WriteLine( "The collection contains the following elements after it is cleared:" );
PrintKeysAndValues1( myCol );
}
// Uses the foreach statement which hides the complexity of the enumerator.
// NOTE: The foreach statement is the preferred way of enumerating the contents of a collection.
public static void PrintKeysAndValues1( IDictionary myCol ) {
Console.WriteLine( " KEY VALUE" );
foreach ( DictionaryEntry de in myCol )
Console.WriteLine( " {0,-25} {1}", de.Key, de.Value );
Console.WriteLine();
}
// Uses the enumerator.
// NOTE: The foreach statement is the preferred way of enumerating the contents of a collection.
public static void PrintKeysAndValues2( IDictionary myCol ) {
IDictionaryEnumerator myEnumerator = myCol.GetEnumerator();
Console.WriteLine( " KEY VALUE" );
while ( myEnumerator.MoveNext() )
Console.WriteLine( " {0,-25} {1}", myEnumerator.Key, myEnumerator.Value );
Console.WriteLine();
}
// Uses the Keys, Values, Count, and Item properties.
public static void PrintKeysAndValues3( HybridDictionary myCol ) {
String[] myKeys = new String[myCol.Count];
myCol.Keys.CopyTo( myKeys, 0 );
Console.WriteLine( " INDEX KEY VALUE" );
for ( int i = 0; i < myCol.Count; i++ )
Console.WriteLine( " {0,-5} {1,-25} {2}", i, myKeys[i], myCol[myKeys[i]] );
Console.WriteLine();
}
}
/*
This code produces output similar to the following:
Displays the elements using foreach:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
Displays the elements using the IDictionaryEnumerator:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
Displays the elements using the Keys, Values, Count, and Item properties:
INDEX KEY VALUE
0 Strawberries 3.33
1 Yellow Bananas 0.79
2 Cranberries 5.98
3 Grapes 1.99
4 Granny Smith Apples 0.89
5 Seedless Watermelon 0.49
6 Honeydew Melon 0.59
7 Red Delicious Apples 0.99
8 Navel Oranges 1.29
9 Fuji Apples 1.29
10 Plantain Bananas 1.49
11 Gala Apples 1.49
12 Pineapple 1.49
13 Plums 1.69
14 Braeburn Apples 1.49
15 Peaches 1.99
16 Golden Delicious Apples 1.29
17 Nectarine 1.99
Displays the elements in the array:
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Plums 1.69
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
The collection does not contain the key "Kiwis".
The collection contains the following elements after removing "Plums":
KEY VALUE
Strawberries 3.33
Yellow Bananas 0.79
Cranberries 5.98
Grapes 1.99
Granny Smith Apples 0.89
Seedless Watermelon 0.49
Honeydew Melon 0.59
Red Delicious Apples 0.99
Navel Oranges 1.29
Fuji Apples 1.29
Plantain Bananas 1.49
Gala Apples 1.49
Pineapple 1.49
Braeburn Apples 1.49
Peaches 1.99
Golden Delicious Apples 1.29
Nectarine 1.99
The collection contains the following elements after it is cleared:
KEY VALUE
*/
Imports System.Collections
Imports System.Collections.Specialized
Public Class SamplesHybridDictionary
Public Shared Sub Main()
' Creates and initializes a new HybridDictionary.
Dim myCol As New HybridDictionary()
myCol.Add("Braeburn Apples", "1.49")
myCol.Add("Fuji Apples", "1.29")
myCol.Add("Gala Apples", "1.49")
myCol.Add("Golden Delicious Apples", "1.29")
myCol.Add("Granny Smith Apples", "0.89")
myCol.Add("Red Delicious Apples", "0.99")
myCol.Add("Plantain Bananas", "1.49")
myCol.Add("Yellow Bananas", "0.79")
myCol.Add("Strawberries", "3.33")
myCol.Add("Cranberries", "5.98")
myCol.Add("Navel Oranges", "1.29")
myCol.Add("Grapes", "1.99")
myCol.Add("Honeydew Melon", "0.59")
myCol.Add("Seedless Watermelon", "0.49")
myCol.Add("Pineapple", "1.49")
myCol.Add("Nectarine", "1.99")
myCol.Add("Plums", "1.69")
myCol.Add("Peaches", "1.99")
' Display the contents of the collection using For Each. This is the preferred method.
Console.WriteLine("Displays the elements using For Each:")
PrintKeysAndValues1(myCol)
' Display the contents of the collection using the enumerator.
Console.WriteLine("Displays the elements using the IDictionaryEnumerator:")
PrintKeysAndValues2(myCol)
' Display the contents of the collection using the Keys, Values, Count, and Item properties.
Console.WriteLine("Displays the elements using the Keys, Values, Count, and Item properties:")
PrintKeysAndValues3(myCol)
' Copies the HybridDictionary to an array with DictionaryEntry elements.
Dim myArr(myCol.Count) As DictionaryEntry
myCol.CopyTo(myArr, 0)
' Displays the values in the array.
Console.WriteLine("Displays the elements in the array:")
Console.WriteLine(" KEY VALUE")
Dim i As Integer
For i = 0 To myArr.Length - 1
Console.WriteLine(" {0,-25} {1}", myArr(i).Key, myArr(i).Value)
Next i
Console.WriteLine()
' Searches for a key.
If myCol.Contains("Kiwis") Then
Console.WriteLine("The collection contains the key ""Kiwis"".")
Else
Console.WriteLine("The collection does not contain the key ""Kiwis"".")
End If
Console.WriteLine()
' Deletes a key.
myCol.Remove("Plums")
Console.WriteLine("The collection contains the following elements after removing ""Plums"":")
PrintKeysAndValues1(myCol)
' Clears the entire collection.
myCol.Clear()
Console.WriteLine("The collection contains the following elements after it is cleared:")
PrintKeysAndValues1(myCol)
End Sub
' Uses the For Each statement which hides the complexity of the enumerator.
' NOTE: The For Each statement is the preferred way of enumerating the contents of a collection.
Public Shared Sub PrintKeysAndValues1(myCol As IDictionary)
Console.WriteLine(" KEY VALUE")
Dim de As DictionaryEntry
For Each de In myCol
Console.WriteLine(" {0,-25} {1}", de.Key, de.Value)
Next de
Console.WriteLine()
End Sub
' Uses the enumerator.
' NOTE: The For Each statement is the preferred way of enumerating the contents of a collection.
Public Shared Sub PrintKeysAndValues2(myCol As IDictionary)
Dim myEnumerator As IDictionaryEnumerator = myCol.GetEnumerator()
Console.WriteLine(" KEY VALUE")
While myEnumerator.MoveNext()
Console.WriteLine(" {0,-25} {1}", myEnumerator.Key, myEnumerator.Value)
End While
Console.WriteLine()
End Sub
' Uses the Keys, Values, Count, and Item properties.
Public Shared Sub PrintKeysAndValues3(myCol As HybridDictionary)
Dim myKeys(myCol.Count) As [String]
myCol.Keys.CopyTo(myKeys, 0)
Console.WriteLine(" INDEX KEY VALUE")
Dim i As Integer
For i = 0 To myCol.Count - 1
Console.WriteLine(" {0,-5} {1,-25} {2}", i, myKeys(i), myCol(myKeys(i)))
Next i
Console.WriteLine()
End Sub
End Class
'This code produces output similar to the following:
'
'Displays the elements using For Each:
' KEY VALUE
' Strawberries 3.33
' Yellow Bananas 0.79
' Cranberries 5.98
' Grapes 1.99
' Granny Smith Apples 0.89
' Seedless Watermelon 0.49
' Honeydew Melon 0.59
' Red Delicious Apples 0.99
' Navel Oranges 1.29
' Fuji Apples 1.29
' Plantain Bananas 1.49
' Gala Apples 1.49
' Pineapple 1.49
' Plums 1.69
' Braeburn Apples 1.49
' Peaches 1.99
' Golden Delicious Apples 1.29
' Nectarine 1.99
'
'Displays the elements using the IDictionaryEnumerator:
' KEY VALUE
' Strawberries 3.33
' Yellow Bananas 0.79
' Cranberries 5.98
' Grapes 1.99
' Granny Smith Apples 0.89
' Seedless Watermelon 0.49
' Honeydew Melon 0.59
' Red Delicious Apples 0.99
' Navel Oranges 1.29
' Fuji Apples 1.29
' Plantain Bananas 1.49
' Gala Apples 1.49
' Pineapple 1.49
' Plums 1.69
' Braeburn Apples 1.49
' Peaches 1.99
' Golden Delicious Apples 1.29
' Nectarine 1.99
'
'Displays the elements using the Keys, Values, Count, and Item properties:
' INDEX KEY VALUE
' 0 Strawberries 3.33
' 1 Yellow Bananas 0.79
' 2 Cranberries 5.98
' 3 Grapes 1.99
' 4 Granny Smith Apples 0.89
' 5 Seedless Watermelon 0.49
' 6 Honeydew Melon 0.59
' 7 Red Delicious Apples 0.99
' 8 Navel Oranges 1.29
' 9 Fuji Apples 1.29
' 10 Plantain Bananas 1.49
' 11 Gala Apples 1.49
' 12 Pineapple 1.49
' 13 Plums 1.69
' 14 Braeburn Apples 1.49
' 15 Peaches 1.99
' 16 Golden Delicious Apples 1.29
' 17 Nectarine 1.99
'
'Displays the elements in the array:
' KEY VALUE
' Strawberries 3.33
' Yellow Bananas 0.79
' Cranberries 5.98
' Grapes 1.99
' Granny Smith Apples 0.89
' Seedless Watermelon 0.49
' Honeydew Melon 0.59
' Red Delicious Apples 0.99
' Navel Oranges 1.29
' Fuji Apples 1.29
' Plantain Bananas 1.49
' Gala Apples 1.49
' Pineapple 1.49
' Plums 1.69
' Braeburn Apples 1.49
' Peaches 1.99
' Golden Delicious Apples 1.29
' Nectarine 1.99
'
'The collection does not contain the key "Kiwis".
'
'The collection contains the following elements after removing "Plums":
' KEY VALUE
' Strawberries 3.33
' Yellow Bananas 0.79
' Cranberries 5.98
' Grapes 1.99
' Granny Smith Apples 0.89
' Seedless Watermelon 0.49
' Honeydew Melon 0.59
' Red Delicious Apples 0.99
' Navel Oranges 1.29
' Fuji Apples 1.29
' Plantain Bananas 1.49
' Gala Apples 1.49
' Pineapple 1.49
' Braeburn Apples 1.49
' Peaches 1.99
' Golden Delicious Apples 1.29
' Nectarine 1.99
'
'The collection contains the following elements after it is cleared:
' KEY VALUE
Comentários
Por padrão, a coleção diferencia maiúsculas de minúsculas e usa a implementação da chave como o provedor de Object.GetHashCode código hash e a implementação da chave como Object.Equals comparador.
O comparador determina se duas chaves são iguais. Cada chave em um HybridDictionary deve ser exclusiva.
Este construtor é uma operação O(1).
Confira também
Aplica-se a
HybridDictionary(Boolean)
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
Cria um HybridDictionary vazio com a diferenciação de maiúsculas e minúsculas especificada.
public:
HybridDictionary(bool caseInsensitive);public HybridDictionary (bool caseInsensitive);new System.Collections.Specialized.HybridDictionary : bool -> System.Collections.Specialized.HybridDictionaryPublic Sub New (caseInsensitive As Boolean)Parâmetros
- caseInsensitive
- Boolean
Um valor booliano que indica se o HybridDictionary diferencia ou não maiúsculas de minúsculas.
Comentários
Se caseInsensitive for false, a coleção usará as implementações da chave de Object.GetHashCode e Object.Equals. Se caseInsensitive for true, a coleção executará uma comparação simples que não diferencia maiúsculas de minúsculas, o que obedece às regras de maiúsculas e minúsculas somente da cultura invariável. Para obter mais informações sobre a cultura invariável, consulte System.Globalization.CultureInfo.
Este construtor é uma operação O(1).
Confira também
Aplica-se a
HybridDictionary(Int32)
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
Cria um HybridDictionary que diferencia maiúsculas de minúsculas com o tamanho inicial especificado.
public:
HybridDictionary(int initialSize);public HybridDictionary (int initialSize);new System.Collections.Specialized.HybridDictionary : int -> System.Collections.Specialized.HybridDictionaryPublic Sub New (initialSize As Integer)Parâmetros
- initialSize
- Int32
O número aproximado de entradas que o HybridDictionary inicialmente pode conter.
Comentários
Se o tamanho inicial da coleção for maior que o tamanho ideal para um ListDictionary, a coleção será armazenada em um Hashtable para evitar a sobrecarga de copiar elementos do ListDictionary para o Hashtable.
Por padrão, a coleção diferencia maiúsculas de minúsculas e usa a implementação da chave como o provedor de Object.GetHashCode código hash e a implementação da chave como Object.Equals comparador.
O comparador determina se duas chaves são iguais. Cada chave em um HybridDictionary deve ser exclusiva.
Esse construtor é uma operação O(n), em que n é initialSize.
Confira também
- IComparer
- Equals(Object)
- Executando operações de cadeia de caracteres que não levam em conta a cultura
Aplica-se a
HybridDictionary(Int32, Boolean)
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
- Origem:
- HybridDictionary.cs
Cria um HybridDictionary com o tamanho inicial e a diferenciação de maiúsculas e minúsculas especificados.
public:
HybridDictionary(int initialSize, bool caseInsensitive);public HybridDictionary (int initialSize, bool caseInsensitive);new System.Collections.Specialized.HybridDictionary : int * bool -> System.Collections.Specialized.HybridDictionaryPublic Sub New (initialSize As Integer, caseInsensitive As Boolean)Parâmetros
- initialSize
- Int32
O número aproximado de entradas que o HybridDictionary inicialmente pode conter.
- caseInsensitive
- Boolean
Um valor booliano que indica se o HybridDictionary diferencia ou não maiúsculas de minúsculas.
Comentários
Se o tamanho inicial da coleção for maior que o tamanho ideal para um ListDictionary, a coleção será armazenada em um Hashtable para evitar a sobrecarga de copiar elementos do ListDictionary para o Hashtable.
Se caseInsensitive for false, a coleção usará as implementações da chave de Object.GetHashCode e Object.Equals. Se caseInsensitive for true, a coleção executará uma comparação simples que não diferencia maiúsculas de minúsculas, o que obedece às regras de maiúsculas e minúsculas somente da cultura invariável. Para obter mais informações sobre a cultura invariável, consulte System.Globalization.CultureInfo.
Esse construtor é uma operação O(n), em que n é initialSize.
Confira também
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