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PropertyCollection.IDictionary.Contains Method

Determines whether the IDictionary object contains an element with the specified key.

Namespace:  System.DirectoryServices
Assembly:  System.DirectoryServices (in System.DirectoryServices.dll)

bool IDictionary.Contains(
	Object value
)

Parameters

value
Type: System.Object

Return Value

Type: System.Boolean
true if the IDictionary contains an element with the key; otherwise, false.

Implements

IDictionary.Contains(Object)

ExceptionCondition
ArgumentNullException

key is null.

The following example demonstrates how to implement the Contains method. This example is part of a larger example provided for the IDictionary class.

public bool Contains(object key)
{
   Int32 index;
   return TryGetIndexOfKey(key, out index);
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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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