El método HybridDictionary.Clear se utiliza para eliminar todas las entradas del HybridDictionary.
Sintaxis:
public void Clear ();
A continuación se dan algunos ejemplos para entender la implementación de una mejor manera:
Ejemplo 1:
// C# code to removes all entries
// from the HybridDictionary.
using System;
using System.Collections;
using System.Collections.Specialized;
class GFG {
// Driver code
public static void Main()
{
// Creating a HybridDictionary named myDict
HybridDictionary myDict = new HybridDictionary();
// Adding key/value pairs in myDict
myDict.Add("A", "Apple");
myDict.Add("B", "Banana");
myDict.Add("C", "Cat");
myDict.Add("D", "Dog");
myDict.Add("E", "Elephant");
myDict.Add("F", "Fish");
// Displaying the number of key/value
// pairs in HybridDictionary myDict
Console.WriteLine("Number of key/value pairs in myDict are : "
+ myDict.Count);
// Displaying the key/value pairs in myDict
Console.WriteLine("The key/value pairs in myDict are : ");
foreach(DictionaryEntry de in myDict)
{
Console.WriteLine(de.Key + " --> " + de.Value);
}
// Removing all entries from myDict
myDict.Clear();
// Displaying the number of key/value
// pairs in HybridDictionary myDict
Console.WriteLine("Number of key/value pairs in myDict are : "
+ myDict.Count);
// Displaying the key/value pairs in myDict
Console.WriteLine("The key/value pairs in myDict are : ");
foreach(DictionaryEntry de in myDict)
{
Console.WriteLine(de.Key + " --> " + de.Value);
}
}
}
Producción:
Number of key/value pairs in myDict are : 6 The key/value pairs in myDict are : A --> Apple B --> Banana C --> Cat D --> Dog E --> Elephant F --> Fish Number of key/value pairs in myDict are : 0 The key/value pairs in myDict are :
Ejemplo 2:
// C# code to removes all entries
// from the HybridDictionary.
using System;
using System.Collections;
using System.Collections.Specialized;
class GFG {
// Driver code
public static void Main()
{
// Creating a HybridDictionary named myDict
HybridDictionary myDict = new HybridDictionary();
// Adding key/value pairs in myDict
myDict.Add("I", "first");
myDict.Add("II", "second");
myDict.Add("III", "third");
myDict.Add("IV", "fourth");
myDict.Add("V", "fifth");
// Displaying the number of key/value
// pairs in HybridDictionary myDict
Console.WriteLine("Number of key/value pairs in myDict are : "
+ myDict.Count);
// Displaying the key/value pairs in myDict
Console.WriteLine("The key/value pairs in myDict are : ");
foreach(DictionaryEntry de in myDict)
{
Console.WriteLine(de.Key + " --> " + de.Value);
}
// Removing all entries from myDict
myDict.Clear();
// Displaying the number of key/value
// pairs in HybridDictionary myDict
Console.WriteLine("Number of key/value pairs in myDict are : "
+ myDict.Count);
// Displaying the key/value pairs in myDict
Console.WriteLine("The key/value pairs in myDict are : ");
foreach(DictionaryEntry de in myDict)
{
Console.WriteLine(de.Key + " --> " + de.Value);
}
}
}
Producción:
Number of key/value pairs in myDict are : 5 The key/value pairs in myDict are : I --> first II --> second III --> third IV --> fourth V --> fifth Number of key/value pairs in myDict are : 0 The key/value pairs in myDict are :
Nota:
- Count se establece en cero y también se liberan las referencias a otros objetos de los elementos de la colección.
- Si la colección ya está almacenada en Hashtable , la colección permanece en Hashtable.
- Este método es una operación O(n) , donde n es Count.
Referencia:
Publicación traducida automáticamente
Artículo escrito por Sahil_Bansall y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA