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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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