QuantumGrid4

Purpose

This example demonstrates how to use the QuantumGrid4 (or QuantumGrid5) product from Developer Express (contact www.devexpress.com. for licensing information if you do not already have the product).

Things to look at in QuantumGrid4_server.exe

The most important methods in the host application are in the NewService_Impl unit:

• GetCustomers retrieves all the records from that dataset.
• GetOrders only retrieves Orders for the current Customer. Note the parameters passed to it.

Things to look at in QuantumGrid4_client.exe

There's only two lines of code in QuantumGrid4_ClientMain, one for each button.

Have a look at QuantumGrid4_ClientData though. This contains code that saves references to customers previously accessed, thus avoiding re-fetching details.