Data Contracts
Avoid inferred data contracts (POCO). Always be explicit and apply the
DataContract
attribute.Use the
DataMember
attribute only on properties or read-only public members.Avoid explicit XML serialization on your own types.
Avoid message contracts.
When using the
Order
property, assign the same value to all members coming from the same level in the class hierarchy.Support
IExtensibleDataObject
on your data contracts. Use explicit interface implementation.Avoid setting
IgnoreExtensionDataObject
totrue
in theServiceBehavior
andCallbackBehavior
attributes. Keep the default offalse
.Do not mark delegates and events as data members.
Do not pass .NET-specific types, such as
Type
, as operation parameters.Do not accept or return ADO.NET
DataSet
s andDataTable
s (or their type-safe subclasses) from operations. Return a neutral representation such as an array.Suppress the generation of a generic type parameter hash code and provide a legible type name instead.
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