HybridDictionary Costruttori
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Inizializza una nuova istanza della classe HybridDictionary.
Overload
| HybridDictionary() |
Crea un oggetto HybridDictionary vuoto con distinzione tra maiuscole e minuscole. |
| HybridDictionary(Boolean) |
Crea un oggetto HybridDictionary vuoto con il comportamento relativo a maiuscole e minuscole specificato. |
| HybridDictionary(Int32) |
Crea un oggetto HybridDictionary con la distinzione tra maiuscole e minuscole e con le dimensioni iniziali specificate. |
| HybridDictionary(Int32, Boolean) |
Crea un oggetto HybridDictionary con comportamento relativo a maiuscole e minuscole e dimensione iniziale specificati. |
HybridDictionary()
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
Crea un oggetto HybridDictionary vuoto con distinzione tra maiuscole e minuscole.
public:
HybridDictionary();public HybridDictionary ();Public Sub New ()Esempio
Nell'esempio di codice seguente vengono illustrate diverse proprietà e metodi di 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
Commenti
Per impostazione predefinita, la raccolta è con distinzione tra maiuscole e minuscole e usa l'implementazione della chiave come provider di codice hash e l'implementazione Object.GetHashCodeObject.Equals della chiave come comparer.
Il comparer determina se due chiavi sono uguali. Ogni chiave in un HybridDictionary deve essere univoca.
Questo costruttore è un'operazione O(1).
Vedi anche
Si applica a
HybridDictionary(Boolean)
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
Crea un oggetto HybridDictionary vuoto con il comportamento relativo a maiuscole e minuscole specificato.
public:
HybridDictionary(bool caseInsensitive);public HybridDictionary (bool caseInsensitive);new System.Collections.Specialized.HybridDictionary : bool -> System.Collections.Specialized.HybridDictionaryPublic Sub New (caseInsensitive As Boolean)Parametri
- caseInsensitive
- Boolean
Valore booleano che indica se HybridDictionary non prevede la distinzione tra maiuscole e minuscole.
Commenti
Se caseInsensitive è false, la raccolta usa le implementazioni della chiave di Object.GetHashCode e Object.Equals. Se caseInsensitive è true, la raccolta esegue un semplice confronto senza distinzione tra maiuscole e minuscole, che obbedisce alle regole di maiuscole e minuscole solo delle impostazioni cultura invarianti. Per altre informazioni sulle impostazioni cultura invarianti, vedere System.Globalization.CultureInfo.
Questo costruttore è un'operazione O(1).
Vedi anche
Si applica a
HybridDictionary(Int32)
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
Crea un oggetto HybridDictionary con la distinzione tra maiuscole e minuscole e con le dimensioni iniziali specificate.
public:
HybridDictionary(int initialSize);public HybridDictionary (int initialSize);new System.Collections.Specialized.HybridDictionary : int -> System.Collections.Specialized.HybridDictionaryPublic Sub New (initialSize As Integer)Parametri
- initialSize
- Int32
Numero approssimativo di voci che l'oggetto HybridDictionary può contenere inizialmente.
Commenti
Se le dimensioni iniziali della raccolta sono maggiori delle dimensioni ottimali per un ListDictionaryoggetto , l'insieme viene archiviato in un Hashtable per evitare il sovraccarico della copia di elementi dall'oggetto all'oggetto ListDictionaryHashtable.
Per impostazione predefinita, la raccolta è con distinzione tra maiuscole e minuscole e usa l'implementazione della chiave come provider di codice hash e l'implementazione Object.GetHashCodeObject.Equals della chiave come comparer.
Il comparer determina se due chiavi sono uguali. Ogni chiave in un HybridDictionary deve essere univoca.
Questo costruttore è un'operazione O(n), dove n è initialSize.
Vedi anche
- IComparer
- Equals(Object)
- Esecuzione di operazioni sulle stringhe indipendenti dalle impostazioni cultura
Si applica a
HybridDictionary(Int32, Boolean)
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
- Source:
- HybridDictionary.cs
Crea un oggetto HybridDictionary con comportamento relativo a maiuscole e minuscole e dimensione iniziale specificati.
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)Parametri
- initialSize
- Int32
Numero approssimativo di voci che l'oggetto HybridDictionary può contenere inizialmente.
- caseInsensitive
- Boolean
Valore booleano che indica se HybridDictionary non prevede la distinzione tra maiuscole e minuscole.
Commenti
Se le dimensioni iniziali della raccolta sono maggiori delle dimensioni ottimali per un ListDictionaryoggetto , l'insieme viene archiviato in un Hashtable per evitare il sovraccarico della copia di elementi dall'oggetto all'oggetto ListDictionaryHashtable.
Se caseInsensitive è false, la raccolta usa le implementazioni della chiave di Object.GetHashCode e Object.Equals. Se caseInsensitive è true, la raccolta esegue un semplice confronto senza distinzione tra maiuscole e minuscole, che obbedisce alle regole di maiuscole e minuscole solo delle impostazioni cultura invarianti. Per altre informazioni sulle impostazioni cultura invarianti, vedere System.Globalization.CultureInfo.
Questo costruttore è un'operazione O(n), dove n è initialSize.
Vedi anche
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