C# - The Input Stream Is Not A Valid Binary Format / Cannot Use Binary As The Length Is Around 15.000

Feb 3, 2011

I have a problem with deserializing in C#/ASP.NET, which gives the exact error:

The input stream is not a valid binary format. The starting contents (in bytes) are: 41-41-45-41-41-41-44-2F-2F-2F-2F-2F-41-51-41-41-41 ...

What I am trying to do

I have a structure with 3 classes. I have a class A which is a base class, and then class B and C which are derived from A.

I am trying to store random types of B and C in the database using LINQ to SQL, in a column with the type VARCHAR(MAX).

I cannot use BINARY as the length is around 15.000.

My code...

[code]...

So the error happends when the first Deserialize method is run, with the above error.

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