[Sample Of August 8] How to Query in a DataSet with Multiple DataTables

Aug. 8

Sample Download : https://code.msdn.microsoft.com/How-to-Query-in-a-DataSet-39a02f42

In this sample, we will demonstrate how to use Expression to query in a DataSet:

1. Create a DataSet with two DataTables;

2. Create the constraints between the tables;

3. Use DataTable.Select Method to get rows from the tables;

4. Use DataTable.Compute Method to compute the specified rows;

5. Use Expression in the above methods to query.

 

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