DataTableReader.GetProviderSpecificValues Method (Object)
Fills the supplied array with provider-specific type information for all the columns in the DataTableReader.
Assembly: System.Data (in System.Data.dll)
Because the DataTableReader always returns the data of the type stored within the underlying DataColumn, the values returned by calling the method is always of the same types as the data stored within the DataTable. When you work with the DataTableReader class, calling the method returns the same values and types as calling the GetValues method.
Available since 2.0