Basic report class explained

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In the controller class we defined the Orders table as our main table:

Public readonly Models.Orders Orders = new Models.Orders();

PrinterWriter _Printer;

Printing.Print_OrdersC1 _layout;

public Print_Orders()
{
    From = Orders1;
}
protected override void OnLoad()
{
    _layout = new Printing.Print_OrdersC1(this);
    _Printer = new PrinterWriter { PrintPreview = true };
    Streams.Add(_ioPrint_Order);
}
protected override void OnLeaveRow()
{
    _layout.Body.WriteTo(_Printer);
} 

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The PrinterWriter is a class within ENV.Printing which is in charge of printing to a printer or to a pdf file.
It is initiated in the OnLoad method, providing it with some properties (for example the print preview).

The Streams.add makes sure that all the resources of the report are cleard when the controller execution is done. (this is true for any type of IO)

The _layout is the report view that will be printed - it is initiated in the OnLoad.

In the OnLeaveRow you can see the WriteTo command which performs the actuall writting of the report, indicating the layout to be used, the section, and the PrinterWriter.

• Exercise Basic Report

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