This documentation is archived and is not being maintained.

Dictionary<TKey, TValue>::IDictionary::Remove Method

Removes the element with the specified key from the IDictionary.

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

private:
virtual void Remove(
	Object^ key
) sealed = IDictionary::Remove

Parameters

key
Type: System::Object
The key of the element to remove.

Implements

IDictionary::Remove(Object)

ExceptionCondition
ArgumentNullException

key is nullptr.

This method approaches an O(1) operation.

The following code example shows how to use the IDictionary::Remove of the System.Collections::IDictionary interface with a Dictionary<TKey, TValue>.

The code example is part of a larger example, including output, provided for the IDictionary::Add method.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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