NameObjectCollectionBase.BaseSet Método

Definición

Establece el valor de una entrada en la instancia NameObjectCollectionBase.Sets the value of an entry in the NameObjectCollectionBase instance.

Sobrecargas

BaseSet(Int32, Object)

Establece el valor de la entrada que se encuentra en el índice especificado de la instancia NameObjectCollectionBase.Sets the value of the entry at the specified index of the NameObjectCollectionBase instance.

BaseSet(String, Object)

Establece el valor de la primera entrada con la clave especificada de la instancia NameObjectCollectionBase, si la encuentra; en caso contrario, agrega una entrada con la clave y el valor especificados a la instancia NameObjectCollectionBase.Sets the value of the first entry with the specified key in the NameObjectCollectionBase instance, if found; otherwise, adds an entry with the specified key and value into the NameObjectCollectionBase instance.

BaseSet(Int32, Object)

Establece el valor de la entrada que se encuentra en el índice especificado de la instancia NameObjectCollectionBase.Sets the value of the entry at the specified index of the NameObjectCollectionBase instance.

protected:
 void BaseSet(int index, System::Object ^ value);
protected void BaseSet (int index, object value);
protected void BaseSet (int index, object? value);
member this.BaseSet : int * obj -> unit
Protected Sub BaseSet (index As Integer, value As Object)

Parámetros

index
Int32

El índice basado en cero de la entrada que se va a establecer.The zero-based index of the entry to set.

value
Object

Object que representa el nuevo valor de la entrada que se va a establecer.The Object that represents the new value of the entry to set. El valor puede ser null.The value can be null.

Excepciones

La colección es de solo lectura.The collection is read-only.

index está fuera del intervalo válido de índices de la colección.index is outside the valid range of indexes for the collection.

Ejemplos

En el ejemplo de código siguiente BaseSet se usa para establecer el valor de un elemento específico.The following code example uses BaseSet to set the value of a specific element.

#using <System.dll>
using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;

public ref class MyCollection : public NameObjectCollectionBase  {

   // Gets or sets the value at the specified index.
public:
   property Object^ default[ int ]  {
      Object^ get(int index)  {
         return( this->BaseGet( index ) );
      }
      void set( int index, Object^ value )  {
         this->BaseSet( index, value );
      }
   }

   // Gets or sets the value associated with the specified key.
   property Object^ default[ String^ ]  {
      Object^ get(String^ key)  {
         return( this->BaseGet( key ) );
      }
      void set( String^ key, Object^ value )  {
         this->BaseSet( key, value );
      }
   }

   // Gets a String array that contains all the keys in the collection.
   property array<String^>^ AllKeys  {
      array<String^>^ get()  {
         return( this->BaseGetAllKeys() );
      }
   }

   // Adds elements from an IDictionary into the new collection.
   MyCollection( IDictionary^ d )  {
      for each ( DictionaryEntry^ de in d )  {
         this->BaseAdd( (String^) de->Key, de->Value );
      }
   }

};

public ref class SamplesNameObjectCollectionBase  {

public:
   static void Main()  {

      // Creates and initializes a new MyCollection instance.
      IDictionary^ d = gcnew ListDictionary();
      d->Add( "red", "apple" );
      d->Add( "yellow", "banana" );
      d->Add( "green", "pear" );
      MyCollection^ myCol = gcnew MyCollection( d );
      Console::WriteLine( "Initial state of the collection:" );
      PrintKeysAndValues2( myCol );
      Console::WriteLine();

      // Sets the value at index 1.
      myCol[1] = "sunflower";
      Console::WriteLine( "After setting the value at index 1:" );
      PrintKeysAndValues2( myCol );
      Console::WriteLine();

      // Sets the value associated with the key "red".
      myCol["red"] = "tulip";
      Console::WriteLine( "After setting the value associated with the key \"red\":" );
      PrintKeysAndValues2( myCol );

   }

   static void PrintKeysAndValues2( MyCollection^ myCol )  {
      for each ( String^ s in myCol->AllKeys )  {
         Console::WriteLine( "{0}, {1}", s, myCol[s] );
      }
   }
};

int main()
{
    SamplesNameObjectCollectionBase::Main();
}

/*
This code produces the following output.

Initial state of the collection:
red, apple
yellow, banana
green, pear

After setting the value at index 1:
red, apple
yellow, sunflower
green, pear

After setting the value associated with the key "red":
red, tulip
yellow, sunflower
green, pear

*/
using System;
using System.Collections;
using System.Collections.Specialized;

public class MyCollection : NameObjectCollectionBase  {

   // Gets or sets the value at the specified index.
   public Object this[ int index ]  {
      get  {
         return( this.BaseGet( index ) );
      }
      set  {
         this.BaseSet( index, value );
      }
   }

   // Gets or sets the value associated with the specified key.
   public Object this[ String key ]  {
      get  {
         return( this.BaseGet( key ) );
      }
      set  {
         this.BaseSet( key, value );
      }
   }

   // Gets a String array that contains all the keys in the collection.
   public String[] AllKeys  {
      get  {
         return( this.BaseGetAllKeys() );
      }
   }

   // Adds elements from an IDictionary into the new collection.
   public MyCollection( IDictionary d )  {
      foreach ( DictionaryEntry de in d )  {
         this.BaseAdd( (String) de.Key, de.Value );
      }
   }
}

public class SamplesNameObjectCollectionBase  {

   public static void Main()  {

      // Creates and initializes a new MyCollection instance.
      IDictionary d = new ListDictionary();
      d.Add( "red", "apple" );
      d.Add( "yellow", "banana" );
      d.Add( "green", "pear" );
      MyCollection myCol = new MyCollection( d );
      Console.WriteLine( "Initial state of the collection:" );
      PrintKeysAndValues2( myCol );
      Console.WriteLine();

      // Sets the value at index 1.
      myCol[1] = "sunflower";
      Console.WriteLine( "After setting the value at index 1:" );
      PrintKeysAndValues2( myCol );
      Console.WriteLine();

      // Sets the value associated with the key "red".
      myCol["red"] = "tulip";
      Console.WriteLine( "After setting the value associated with the key \"red\":" );
      PrintKeysAndValues2( myCol );
   }

   public static void PrintKeysAndValues2( MyCollection myCol )  {
      foreach ( String s in myCol.AllKeys )  {
         Console.WriteLine( "{0}, {1}", s, myCol[s] );
      }
   }
}


/*
This code produces the following output.

Initial state of the collection:
red, apple
yellow, banana
green, pear

After setting the value at index 1:
red, apple
yellow, sunflower
green, pear

After setting the value associated with the key "red":
red, tulip
yellow, sunflower
green, pear

*/
Imports System.Collections
Imports System.Collections.Specialized

Public Class MyCollection
   Inherits NameObjectCollectionBase

   ' Gets or sets the value at the specified index.
   Default Public Property Item(index As Integer) As [Object]
      Get
         Return Me.BaseGet(index)
      End Get
      Set
         Me.BaseSet(index, value)
      End Set
   End Property

   ' Gets or sets the value associated with the specified key.
   Default Public Property Item(key As [String]) As [Object]
      Get
         Return Me.BaseGet(key)
      End Get
      Set
         Me.BaseSet(key, value)
      End Set
   End Property

   ' Gets a String array that contains all the keys in the collection.
   Public ReadOnly Property AllKeys() As [String]()
      Get
         Return Me.BaseGetAllKeys()
      End Get
   End Property

   ' Adds elements from an IDictionary into the new collection.
   Public Sub New(d As IDictionary)
      Dim de As DictionaryEntry
      For Each de In  d
         Me.BaseAdd(CType(de.Key, [String]), de.Value)
      Next de
   End Sub

End Class


Public Class SamplesNameObjectCollectionBase   

   Public Shared Sub Main()

      ' Creates and initializes a new MyCollection instance.
      Dim d = New ListDictionary()
      d.Add("red", "apple")
      d.Add("yellow", "banana")
      d.Add("green", "pear")
      Dim myCol As New MyCollection(d)
      Console.WriteLine("Initial state of the collection:")
      PrintKeysAndValues2(myCol)
      Console.WriteLine()

      ' Sets the value at index 1.
      myCol(1) = "sunflower"
      Console.WriteLine("After setting the value at index 1:")
      PrintKeysAndValues2(myCol)
      Console.WriteLine()

      ' Sets the value associated with the key "red".
      myCol("red") = "tulip"
      Console.WriteLine("After setting the value associated with the key ""red"":")
      PrintKeysAndValues2(myCol)

   End Sub

   Public Shared Sub PrintKeysAndValues2(myCol As MyCollection)
      Dim s As [String]
      For Each s In  myCol.AllKeys
         Console.WriteLine("{0}, {1}", s, myCol(s))
      Next s
   End Sub

End Class


'This code produces the following output.
'
'Initial state of the collection:
'red, apple
'yellow, banana
'green, pear
'
'After setting the value at index 1:
'red, apple
'yellow, sunflower
'green, pear
'
'After setting the value associated with the key "red":
'red, tulip
'yellow, sunflower
'green, pear

Comentarios

Este método es una operación O (1).This method is an O(1) operation.

Se aplica a

BaseSet(String, Object)

Establece el valor de la primera entrada con la clave especificada de la instancia NameObjectCollectionBase, si la encuentra; en caso contrario, agrega una entrada con la clave y el valor especificados a la instancia NameObjectCollectionBase.Sets the value of the first entry with the specified key in the NameObjectCollectionBase instance, if found; otherwise, adds an entry with the specified key and value into the NameObjectCollectionBase instance.

protected:
 void BaseSet(System::String ^ name, System::Object ^ value);
protected void BaseSet (string name, object value);
protected void BaseSet (string? name, object? value);
member this.BaseSet : string * obj -> unit
Protected Sub BaseSet (name As String, value As Object)

Parámetros

name
String

Clave String de la entrada que se va a establecer.The String key of the entry to set. La clave puede ser null.The key can be null.

value
Object

Object que representa el nuevo valor de la entrada que se va a establecer.The Object that represents the new value of the entry to set. El valor puede ser null.The value can be null.

Excepciones

La colección es de solo lectura.The collection is read-only.

Ejemplos

En el ejemplo de código siguiente BaseSet se usa para establecer el valor de un elemento específico.The following code example uses BaseSet to set the value of a specific element.

#using <System.dll>
using namespace System;
using namespace System::Collections;
using namespace System::Collections::Specialized;

public ref class MyCollection : public NameObjectCollectionBase  {

   // Gets or sets the value at the specified index.
public:
   property Object^ default[ int ]  {
      Object^ get(int index)  {
         return( this->BaseGet( index ) );
      }
      void set( int index, Object^ value )  {
         this->BaseSet( index, value );
      }
   }

   // Gets or sets the value associated with the specified key.
   property Object^ default[ String^ ]  {
      Object^ get(String^ key)  {
         return( this->BaseGet( key ) );
      }
      void set( String^ key, Object^ value )  {
         this->BaseSet( key, value );
      }
   }

   // Gets a String array that contains all the keys in the collection.
   property array<String^>^ AllKeys  {
      array<String^>^ get()  {
         return( this->BaseGetAllKeys() );
      }
   }

   // Adds elements from an IDictionary into the new collection.
   MyCollection( IDictionary^ d )  {
      for each ( DictionaryEntry^ de in d )  {
         this->BaseAdd( (String^) de->Key, de->Value );
      }
   }

};

public ref class SamplesNameObjectCollectionBase  {

public:
   static void Main()  {

      // Creates and initializes a new MyCollection instance.
      IDictionary^ d = gcnew ListDictionary();
      d->Add( "red", "apple" );
      d->Add( "yellow", "banana" );
      d->Add( "green", "pear" );
      MyCollection^ myCol = gcnew MyCollection( d );
      Console::WriteLine( "Initial state of the collection:" );
      PrintKeysAndValues2( myCol );
      Console::WriteLine();

      // Sets the value at index 1.
      myCol[1] = "sunflower";
      Console::WriteLine( "After setting the value at index 1:" );
      PrintKeysAndValues2( myCol );
      Console::WriteLine();

      // Sets the value associated with the key "red".
      myCol["red"] = "tulip";
      Console::WriteLine( "After setting the value associated with the key \"red\":" );
      PrintKeysAndValues2( myCol );

   }

   static void PrintKeysAndValues2( MyCollection^ myCol )  {
      for each ( String^ s in myCol->AllKeys )  {
         Console::WriteLine( "{0}, {1}", s, myCol[s] );
      }
   }
};

int main()
{
    SamplesNameObjectCollectionBase::Main();
}

/*
This code produces the following output.

Initial state of the collection:
red, apple
yellow, banana
green, pear

After setting the value at index 1:
red, apple
yellow, sunflower
green, pear

After setting the value associated with the key "red":
red, tulip
yellow, sunflower
green, pear

*/
using System;
using System.Collections;
using System.Collections.Specialized;

public class MyCollection : NameObjectCollectionBase  {

   // Gets or sets the value at the specified index.
   public Object this[ int index ]  {
      get  {
         return( this.BaseGet( index ) );
      }
      set  {
         this.BaseSet( index, value );
      }
   }

   // Gets or sets the value associated with the specified key.
   public Object this[ String key ]  {
      get  {
         return( this.BaseGet( key ) );
      }
      set  {
         this.BaseSet( key, value );
      }
   }

   // Gets a String array that contains all the keys in the collection.
   public String[] AllKeys  {
      get  {
         return( this.BaseGetAllKeys() );
      }
   }

   // Adds elements from an IDictionary into the new collection.
   public MyCollection( IDictionary d )  {
      foreach ( DictionaryEntry de in d )  {
         this.BaseAdd( (String) de.Key, de.Value );
      }
   }
}

public class SamplesNameObjectCollectionBase  {

   public static void Main()  {

      // Creates and initializes a new MyCollection instance.
      IDictionary d = new ListDictionary();
      d.Add( "red", "apple" );
      d.Add( "yellow", "banana" );
      d.Add( "green", "pear" );
      MyCollection myCol = new MyCollection( d );
      Console.WriteLine( "Initial state of the collection:" );
      PrintKeysAndValues2( myCol );
      Console.WriteLine();

      // Sets the value at index 1.
      myCol[1] = "sunflower";
      Console.WriteLine( "After setting the value at index 1:" );
      PrintKeysAndValues2( myCol );
      Console.WriteLine();

      // Sets the value associated with the key "red".
      myCol["red"] = "tulip";
      Console.WriteLine( "After setting the value associated with the key \"red\":" );
      PrintKeysAndValues2( myCol );
   }

   public static void PrintKeysAndValues2( MyCollection myCol )  {
      foreach ( String s in myCol.AllKeys )  {
         Console.WriteLine( "{0}, {1}", s, myCol[s] );
      }
   }
}


/*
This code produces the following output.

Initial state of the collection:
red, apple
yellow, banana
green, pear

After setting the value at index 1:
red, apple
yellow, sunflower
green, pear

After setting the value associated with the key "red":
red, tulip
yellow, sunflower
green, pear

*/
Imports System.Collections
Imports System.Collections.Specialized

Public Class MyCollection
   Inherits NameObjectCollectionBase

   ' Gets or sets the value at the specified index.
   Default Public Property Item(index As Integer) As [Object]
      Get
         Return Me.BaseGet(index)
      End Get
      Set
         Me.BaseSet(index, value)
      End Set
   End Property

   ' Gets or sets the value associated with the specified key.
   Default Public Property Item(key As [String]) As [Object]
      Get
         Return Me.BaseGet(key)
      End Get
      Set
         Me.BaseSet(key, value)
      End Set
   End Property

   ' Gets a String array that contains all the keys in the collection.
   Public ReadOnly Property AllKeys() As [String]()
      Get
         Return Me.BaseGetAllKeys()
      End Get
   End Property

   ' Adds elements from an IDictionary into the new collection.
   Public Sub New(d As IDictionary)
      Dim de As DictionaryEntry
      For Each de In  d
         Me.BaseAdd(CType(de.Key, [String]), de.Value)
      Next de
   End Sub

End Class


Public Class SamplesNameObjectCollectionBase   

   Public Shared Sub Main()

      ' Creates and initializes a new MyCollection instance.
      Dim d = New ListDictionary()
      d.Add("red", "apple")
      d.Add("yellow", "banana")
      d.Add("green", "pear")
      Dim myCol As New MyCollection(d)
      Console.WriteLine("Initial state of the collection:")
      PrintKeysAndValues2(myCol)
      Console.WriteLine()

      ' Sets the value at index 1.
      myCol(1) = "sunflower"
      Console.WriteLine("After setting the value at index 1:")
      PrintKeysAndValues2(myCol)
      Console.WriteLine()

      ' Sets the value associated with the key "red".
      myCol("red") = "tulip"
      Console.WriteLine("After setting the value associated with the key ""red"":")
      PrintKeysAndValues2(myCol)

   End Sub

   Public Shared Sub PrintKeysAndValues2(myCol As MyCollection)
      Dim s As [String]
      For Each s In  myCol.AllKeys
         Console.WriteLine("{0}, {1}", s, myCol(s))
      Next s
   End Sub

End Class


'This code produces the following output.
'
'Initial state of the collection:
'red, apple
'yellow, banana
'green, pear
'
'After setting the value at index 1:
'red, apple
'yellow, sunflower
'green, pear
'
'After setting the value associated with the key "red":
'red, tulip
'yellow, sunflower
'green, pear

Comentarios

Si la colección contiene varias entradas con la clave especificada, este método establece solo la primera entrada.If the collection contains multiple entries with the specified key, this method sets only the first entry. Para establecer los valores de las entradas posteriores con la misma clave, utilice el enumerador para recorrer en iteración la colección y comparar las claves.To set the values of subsequent entries with the same key, use the enumerator to iterate through the collection and compare the keys.

Este método es una operación O (1).This method is an O(1) operation.

Consulte también

Se aplica a