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[ASP.NET] Session states cannot be serialized. In "StateServer" or "SQLServer" mode...

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Posted on 11/18/2017 9:37:45 PM | | | |
Session states cannot be serialized. In "StateServer" or "SQLServer" mode, ASP.NET will serialize session state objects, so non-serializable objects or MarshalByRef objects are not allowed. The same restrictions apply if the custom session state store performs similar serialization in "Custom" mode.        



Solution:

Variables cannot be serialized when assigning a Session, so try adding [Serializable] to the Class. Problem solving

[Serializable]
public class MyClass
{
.......
}

Let's talk about [Serializable], which is used to inform the compiler that the class can be serialized

Serialization refers to the process of storing the state of an object instance to a storage medium. In this process, the public and private fields of the object and the name of the class (including the assembly in which the class resides) are converted into a bytestream before writing the bytestream to the datastream. When the object is subsequently deserialized, an identical copy of the original object is created.
When implementing serialization mechanisms in an object-oriented environment, there must be some trade-offs between ease of use and flexibility. As long as you have enough control over this process, you can make it largely automatic. For example, simple binary serialization doesn't suffice, or there is a need to determine which fields in a class need to be serialized for a specific reason. The following sections will explore the reliable serialization mechanisms provided by the .NET framework and highlight some of the important features that allow you to customize the serialization process to your needs.





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Related Posts
 Landlord| Posted on 11/19/2017 4:19:48 PM |
For some objects that inherit from MarshalByRef, such as DbTransation objects, they cannot be serialized. Therefore, you cannot use Session to store objects that inherit the MarshalByRef type.
The workaround is to use the Cache and SessionID to emulate the Session. The Cache class can cache any type of object.
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