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ReadOnlyDictionary<TKey, TValue>.ICollection<KeyValuePair<TKey, TValue>>.Contains Method

.NET Framework 4.5

Determines whether the dictionary contains a specific value.

Namespace:  System.Collections.ObjectModel
Assemblies:   mscorlib (in mscorlib.dll)
  System.ObjectModel (in System.ObjectModel.dll)

bool ICollection<KeyValuePair<TKey, TValue>>.Contains(
	KeyValuePair<TKey, TValue> item


Type: System.Collections.Generic.KeyValuePair<TKey, TValue>

The object to locate in the dictionary.

Return Value

Type: System.Boolean
true if item is found in the dictionary; otherwise, false.



This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<TKey, TValue> instance is cast to an ICollection<T> interface.

.NET Framework

Supported in: 4.6, 4.5

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

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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