1.7 KiB
1.7 KiB
NetDataContractSerializer fails to deserialize a ConcurrentDictionary serialized with a different .NET version
Scope
Minor
Version Introduced
4.5.1
Source Analyzer Status
Planned
Change Description
By design, the xref:System.Runtime.Serialization.NetDataContractSerializer?displayProperty=name can be used only if both the serializing and deserializing ends share the same CLR types. Therefore, it is not guaranteed that an object serialized with one version of the .NET Framework can be deserialized by a different version.
xref:System.Collections.Concurrent.ConcurrentDictionary`2?displayProperty=name is a type that is known to not to deserialize correctly if serialized with the .NET Framework 4.5 or earlier and deserialized with the .NET Framework 4.5.1 or later.
- Quirked
- Build-time break
Recommended Action
There are a number of possible work-arounds for this issue:
- Upgrade the serializing computer to use the .NET Framework 4.5.1, as well.
- Use xref:System.Runtime.Serialization.DataContractSerializer?displayProperty=name instead of xref:System.Runtime.Serialization.NetDataContractSerializer?displayProperty=name as this does not expect the exact same CLR types at both serializing and deserializing ends.
- Use xref:System.Collections.Generic.Dictionary`2?displayProperty=name instead of xref:System.Collections.Concurrent.ConcurrentDictionary`2?displayProperty=name since it does not exhibit this particular 4.5->4.5.1 break.
Affected APIs
M:System.Runtime.Serialization.NetDataContractSerializer.Deserialize(System.IO.Stream)
Category
Serialization