Data Linker sample

What the Data Linker does

When you first run the Data Linker, no data displays on the right side of the window.

The left pane shows a tree view with employees as the top-level node with no nodes expanded. There are four separate panels on the right, one above another.

Using the Data Linker

To use the Data Linker, you first expand an employee name and a company’s data in the TreeView DataWindow.

One employee node has been expanded to show her customers, and one customer node has been expanded to show an order I D and an order item.

Expanding the TreeView displays the company names, the orders for the company you select, and in the detail band, the icon and name for each item in the order.

You can click on each of the TreeView levels in order, and then click in the detail band to display the details in the four DataWindows on the right.

For example, if you click first on Catherine Pickett, then on Avon Inc., then on 2073, and last on Baseball Cap, the data in each of the related DataWindows displays on the right. You can also update the data in each of the DataWindows.

Expanding the nodes displays four data windows in the panel on the right: employee details, customer details, order details, and sales order item details.

Data Linker TreeView DataWindow

Here is the TreeView DataWindow used in the Data Linker sample.

The design, preview, and properties views for the sample display in the data window painter.

One TreeView DataWindow The Data Linker uses one TreeView DataWindow, but other DataWindows that are not TreeView DataWindows also support the Data Linker’s functionality.

Data Linker code

The code in the Clicked event uses GetBandAtPointer to determine which DataWindow to display.