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

.NET Framework 4.5

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)

Exceptions

Exception	Condition
ArgumentNullException	key is nullptr.

Remarks

This method approaches an O(1) operation.

Examples

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.

C++

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

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

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.

Reference

Dictionary<TKey, TValue> Class

System.Collections.Generic Namespace

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