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CollectionBase::OnSetComplete Method

Performs additional custom processes after setting a value in the CollectionBase instance.

Namespace:  System.Collections
Assembly:  mscorlib (in mscorlib.dll)

protected:
virtual void OnSetComplete(
	int index, 
	Object^ oldValue, 
	Object^ newValue
)

Parameters

index
Type: System::Int32

The zero-based index at which oldValue can be found.

oldValue
Type: System::Object

The value to replace with newValue.

newValue
Type: System::Object

The new value of the element at index.

The default implementation of this method is intended to be overridden by a derived class to perform some action after the specified element is set.

The On* methods are invoked only on the instance returned by the List property, but not on the instance returned by the InnerList property.

The collection reverts back to its previous state if one of the following occurs:

  • The process fails.

  • This method is overridden to throw an exception.

The default implementation of this method is an O(1) operation.

Notes to Implementers

This method allows implementers to define processes that must be performed after setting the specified element in the underlying System.Collections::ArrayList. By defining this method, implementers can add functionality to inherited methods without having to override all other methods.

OnSet is invoked before the standard Set behavior, whereas OnSetComplete is invoked after the standard Set behavior.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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