CA2236: Call base class methods on ISerializable types
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For the latest documentation on Visual Studio 2017, see CA2236: Call base class methods on ISerializable types on docs.microsoft.com.
| TypeName | CallBaseClassMethodsOnISerializableTypes |
| CheckId | CA2236 |
| Category | Microsoft.Usage |
| Breaking Change | Non Breaking |
A type derives from a type that implements the System.Runtime.Serialization.ISerializable interface, and one of the following conditions is true:
The type implements the serialization constructor, that is, a constructor with the System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext parameter signature, but does not call the serialization constructor of the base type.
The type implements the ISerializable.GetObjectData method but does not call the GetObjectData method of the base type.
In a custom serialization process, a type implements the GetObjectData method to serialize its fields and the serialization constructor to de-serialize the fields. If the type derives from a type that implements the ISerializable interface, the base type GetObjectData method and serialization constructor should be called to serialize/de-serialize the fields of the base type. Otherwise, the type will not be serialized and de-serialized correctly. Note that if the derived type does not add any new fields, the type does not need to implement the GetObjectData method nor the serialization constructor or call the base type equivalents.
To fix a violation of this rule, call the base type GetObjectData method or serialization constructor from the corresponding derived type method or constructor.
Do not suppress a warning from this rule.
The following example shows a derived type that satisfies the rule by calling the serialization constructor and GetObjectData method of the base class.
CA2240: Implement ISerializable correctly
CA2229: Implement serialization constructors
CA2238: Implement serialization methods correctly
CA2235: Mark all non-serializable fields
CA2237: Mark ISerializable types with SerializableAttribute