CA2238: Implement serialization methods correctly


For the latest documentation on Visual Studio 2017, see Visual Studio 2017 Documentation.

Breaking ChangeBreaking - If the method is visible outside the assembly.

Non Breaking - If the method is not visible outside the assembly.

A method that handles a serialization event does not have the correct signature, return type, or visibility.

A method is designated a serialization event handler by applying one of the following serialization event attributes:

Serialization event handlers take a single parameter of type System.Runtime.Serialization.StreamingContext, return void, and have private visibility.

To fix a violation of this rule, correct the signature, return type, or visibility of the serialization event handler.

Do not suppress a warning from this rule.

The following example shows correctly declared serialization event handlers.

Imports System
Imports System.Runtime.Serialization

Namespace UsageLibrary

   <SerializableAttribute> _ 
   Public Class SerializationEventHandlers

      <OnSerializingAttribute> _ 
      Private Sub OnSerializing(context As StreamingContext) 
      End Sub

      <OnSerializedAttribute> _ 
      Private Sub OnSerialized(context As StreamingContext) 
      End Sub

      <OnDeserializingAttribute> _ 
      Private Sub OnDeserializing(context As StreamingContext)
      End Sub

      <OnDeserializedAttribute> _ 
      Private Sub OnDeserialized(context As StreamingContext)
      End Sub

   End Class

End Namespace

CA2236: Call base class methods on ISerializable types

CA2240: Implement ISerializable correctly

CA2229: Implement serialization constructors

CA2235: Mark all non-serializable fields

CA2237: Mark ISerializable types with SerializableAttribute

CA2239: Provide deserialization methods for optional fields

CA2120: Secure serialization constructors