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

Removes the element with the specified key from the IDictionary.

Namespace:  System.Collections.Generic
Assemblies:   mscorlib (in mscorlib.dll)
  System.Collections (in System.Collections.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: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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