C# 序列化错误

Question

I'm trying to store object of Employee in Session (DB Based), When i do this I'm getting serialization error "Unable to serialize the session state. In 'StateServer'"

[Serializable]
public class Employee
{
    ... 
public List<System.ComponenetModel.DataAnnotation.ValidationResult> MyValidationResult
  { get; set; }
}

I figured out it is happening when it tries to serialize MyValidationResult it is happening, Any idea how to fix it?

Answer 1

You could use theNonSerializedAttribute . Add a backing field and don't use an auto-implemented property and add the NonSerializedAttribute to the field and you should be good to go.

Answer 2

ValidationResult cannot be serialized because it doesn't have a parameterless constructor. If you need to save the validations in session state, you'll have to come up with another class to do so. If you don't need it, then apply the NonSerialized attribute to the property.