== Why is this an issue?

Classes that declare an implementation of ``++Serializable++`` should provide a serializable constructor. Without such a constructor, you'll be unable to deserialize the class.


Serialization constructors should be ``++private++`` for ``++sealed++`` types and ``++protected++`` otherwise.


=== Noncompliant code example

[source,csharp]
----
[Serializable]
public class Person : ISerializable {  // Noncompliant; missing serializable constructor
  public void GetObjectData (SerializationInfo info, StreamingContext context) {
    // ...
  }
}
----


=== Compliant solution

[source,csharp]
----
[Serializable]
public class Person : ISerializable {  // Noncompliant; missing serializable constructor

  protected Person (SerializationInfo info, StreamingContext context) {
    // ...
  }

  public void GetObjectData (SerializationInfo info, StreamingContext context) {
    // ...
  }
}
----


ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Add a serialization constructor to this class.


'''
== Comments And Links
(visible only on this page)

=== on 4 Feb 2015, 14:09:09 Ann Campbell wrote:
Gendarme MissingSerializationConstructorRule

=== on 13 Apr 2015, 10:48:15 Freddy Mallet wrote:
@Tamas, does this rule makes sense to you ? Thanks

=== on 22 May 2015, 09:21:46 Tamas Vajk wrote:
\[~freddy.mallet] Yes, it makes sense. BUT it is already implemented by the Roslyn team: 

https://msdn.microsoft.com/en-us/library/ms182343.aspx

https://github.com/dotnet/roslyn/blob/master/src/Diagnostics/FxCop/Core/Usage/SerializationRulesDiagnosticAnalyzer.cs

=== on 28 May 2015, 12:44:12 Tamas Vajk wrote:
This rule duplicates CA2229 (\https://msdn.microsoft.com/en-us/library/ms182343.aspx), which is already implemented by the Roslyn team.

endif::env-github,rspecator-view[]