Contains Method (X509Certificate2)

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Determines whether the X509Certificate2Collection object contains a specific certificate.

Namespace:  System.Security.Cryptography.X509Certificates
Assembly:  System.Security (in System.Security.dll)

public bool Contains(
	X509Certificate2 value


Type: System.Security.Cryptography.X509Certificates..::..X509Certificate2
The X509Certificate2 object to locate in the collection.

Return Value

Type: System..::..Boolean
true if the X509Certificate2Collection contains the specified value; otherwise, false.

This method performs a linear search; therefore, the average execution time is proportional to the Count property. That is, this method is an O(n) operation, where n is Count.

This method determines equality by calling the Object..::..Equals method.