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Query Expression Examples (LINQ to DataSet)

  • Artikkeli

This section provides LINQ to DataSet programming examples in query expression syntax that use the standard query operators. The DataSet used in these examples is populated by using the FillDataSet method, which is specified in Loading Data Into a DataSet. For more information, see Standard Query Operators Overview (C#) or Standard Query Operators Overview (Visual Basic).

In This Section

Projection
The examples in this topic demonstrate how to use the Select and SelectMany methods to query a DataSet.

Restriction
The examples in this topic demonstrate how to use the Where method to query a DataSet.

Partitioning
The examples in this topic demonstrate how to use the Skip and Take methods to query a DataSet and partition the results.

Ordering
The examples in this topic demonstrate how to use the OrderBy, OrderByDescending, Reverse, and ThenByDescending methods to query a DataSet and order the results.

Element Operators
The examples in this topic demonstrate how to use the First and ElementAt methods to get DataRow elements from a DataSet.

Aggregate Operators
The examples in this topic demonstrate how to use the Average, Count, Max, Min, and Sum methods to query a DataSet and aggregate data.

Join Operators
The examples in this topic demonstrate how to use the GroupJoin and Join methods to query a DataSet.

See also