In Brief

  • The DataSet plays a central role in ADO.NET on the .NET Compact Framework. It is an in-memory cache of relational data.

  • Internally, the DataSet holds collections of DataTables, DataRows, and DataColumns to store relational data. To directly access or alter the relational data in a DataSet, developers must use these collections.

  • The UniqueConstraint class lets the DataSet automatically enforce uniqueness among the columns in a DataTable.

  • Columns can be set to be automatically incremented when a new row is added to a DataTable.

  • Column values can be automatically computed by using an Expression.

  • The DataRelation class is used to express parent-child relationships between two DataTables.

  • The ForeignKeyConstraint can be used to enforce a foreign ...

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