ListDictionary.Remove(Object) 메서드

정의

네임스페이스:

System.Collections.Specialized

어셈블리:

netstandard.dll, System.Collections.Specialized.dll

Source:

ListDictionary.cs

에서 지정된 키를 ListDictionary가진 항목을 제거합니다.

public:
 virtual void Remove(System::Object ^ key);

public void Remove(object key);

abstract member Remove : obj -> unit
override this.Remove : obj -> unit

Public Sub Remove (key As Object)

매개 변수

key

Object

제거할 항목의 키입니다.

구현

Remove(Object)

예외

ArgumentNullException

key은 null입니다.

예제

다음 코드 예제에서는 추가 하 고에서 요소를 제거 합니다 ListDictionary.

using System;
using System.Collections;
using System.Collections.Specialized;

public class SamplesListDictionary  {

   public static void Main()  {

      // Creates and initializes a new ListDictionary.
      ListDictionary myCol = new ListDictionary();
      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" );

      // Displays the values in the ListDictionary in three different ways.
      Console.WriteLine( "Initial contents of the ListDictionary:" );
      PrintKeysAndValues( myCol );

      // Deletes a key.
      myCol.Remove( "Gala Apples" );
      Console.WriteLine( "The collection contains the following elements after removing \"Gala Apples\":" );
      PrintKeysAndValues( myCol );

      // Clears the entire collection.
      myCol.Clear();
      Console.WriteLine( "The collection contains the following elements after it is cleared:" );
      PrintKeysAndValues( myCol );
   }

   public static void PrintKeysAndValues( IDictionary myCol )  {
      Console.WriteLine( "   KEY                       VALUE" );
      foreach ( DictionaryEntry de in myCol )
         Console.WriteLine( "   {0,-25} {1}", de.Key, de.Value );
      Console.WriteLine();
   }
}


/*
This code produces the following output.

Initial contents of the ListDictionary:
   KEY                       VALUE
   Braeburn Apples           1.49
   Fuji Apples               1.29
   Gala Apples               1.49
   Golden Delicious Apples   1.29
   Granny Smith Apples       0.89
   Red Delicious Apples      0.99

The collection contains the following elements after removing "Gala Apples":
   KEY                       VALUE
   Braeburn Apples           1.49
   Fuji Apples               1.29
   Golden Delicious Apples   1.29
   Granny Smith Apples       0.89
   Red Delicious Apples      0.99

The collection contains the following elements after it is cleared:
   KEY                       VALUE

*/

Imports System.Collections
Imports System.Collections.Specialized

Public Class SamplesListDictionary   

   Public Shared Sub Main()

      ' Creates and initializes a new ListDictionary.
      Dim myCol As New ListDictionary()
      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")

      ' Displays the values in the ListDictionary in three different ways.
      Console.WriteLine("Initial contents of the ListDictionary:")
      PrintKeysAndValues(myCol)

      ' Deletes a key.
      myCol.Remove("Gala Apples")
      Console.WriteLine("The collection contains the following elements after removing ""Gala Apples"":")
      PrintKeysAndValues(myCol)

      ' Clears the entire collection.
      myCol.Clear()
      Console.WriteLine("The collection contains the following elements after it is cleared:")
      PrintKeysAndValues(myCol)

   End Sub

   Public Shared Sub PrintKeysAndValues(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

End Class


'This code produces the following output.
'
'Initial contents of the ListDictionary:
'   KEY                       VALUE
'   Braeburn Apples           1.49
'   Fuji Apples               1.29
'   Gala Apples               1.49
'   Golden Delicious Apples   1.29
'   Granny Smith Apples       0.89
'   Red Delicious Apples      0.99
'
'The collection contains the following elements after removing "Gala Apples":
'   KEY                       VALUE
'   Braeburn Apples           1.49
'   Fuji Apples               1.29
'   Golden Delicious Apples   1.29
'   Granny Smith Apples       0.89
'   Red Delicious Apples      0.99
'
'The collection contains the following elements after it is cleared:
'   KEY                       VALUE
'

설명

ListDictionary 지정된 키를 ListDictionary 가진 요소가 없으면 변경되지 않은 상태로 유지됩니다. 예외가 던져지지 않습니다.

이 메서드는 O(n) 연산입니다. 여기서 n 는 Count.

추가 정보

• Add(Object, Object)
• Remove(Object)
• Culture-Insensitive 문자열 작업 수행