Contains Method (ObjectParameter)
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ObjectParameterCollection.Contains Method (ObjectParameter)

Checks for the existence of a specified ObjectParameter in the collection by reference.

Namespace:  System.Data.Objects
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public bool Contains(
	ObjectParameter parameter


Type: System.Data.Objects.ObjectParameter
The ObjectParameter to find in the collection.

Return Value

Type: System.Boolean
Returns true if the parameter object was found in the collection; otherwise, false.




The parameter argument is null.

This is a reference-based check. That is, if an ObjectParameter is specified that contains the same name as a parameter object in the collection, this method will only return true if it is the same object.

.NET Framework

Supported in: 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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