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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 abstract Remove : 
        key:Object -> unit  
private override Remove : 
        key:Object -> unit

Parameters

key
Type: System.Object

The key of the element to remove.

Implements

IDictionary.Remove(Object)

ExceptionCondition
ArgumentNullException

key is a null reference (Nothing in Visual Basic).

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: 4.5.2, 4.5.1, 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

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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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