问题
This UdtTypeName property is required to read or write Geography, Geometry or HierarchyId. I can't find any workaround or post/information on this subject. Does anyone have an explanation?
回答1:
This is not implementend in netcoreapp1.1.
There is an issue about that in the dotnet corefx project, referencing all the missing API of System.Data.SqlClient, and especially about UdtTypeName: https://github.com/dotnet/corefx/issues/17126
来源：https://stackoverflow.com/questions/44315760/no-sqlparameter-udttypename-on-netcoreapp1-1-how-to-use-udt