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DM.PAS
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Pascal/Delphi Source File
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1996-05-08
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1KB
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58 lines
Unit DM;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
DB, DBTables;
type
TDM1 = class(TDataModule)
Customer: TTable;
CustomerSource: TDataSource;
SQLCustomer: TQuery;
SQLOrders: TQuery;
OrdersSource: TDataSource;
SQLOrdersOrderNo: TFloatField;
SQLOrdersCustno: TFloatField;
SQLOrdersSaleDate: TDateTimeField;
SQLOrdersShipDate: TDateTimeField;
SQLOrdersEmpNo: TIntegerField;
SQLOrdersAmountPaid: TCurrencyField;
procedure DM1Create(Sender: TObject);
procedure SQLOrdersFilterRecord(DataSet: TDataSet;
var Accept: Boolean);
public
{ The variable below will be accessible to to CustView (because it is
public and this unit is in its uses). It is used in
SQLOrdersFilterRecord to set the Filter amount for the Orders Query. }
OrdersFilterAmount: Extended;
end;
var
DM1: TDM1;
implementation
{$R *.DFM}
procedure TDM1.DM1Create(Sender: TObject);
begin
try
Screen.Cursor := crHourGlass;
SQLCustomer.Open;
finally
Screen.Cursor := crDefault;
end;
end;
procedure TDM1.SQLOrdersFilterRecord(DataSet: TDataSet;
var Accept: Boolean);
begin
{ This is only called if the Filtered property is True, set
dynamically by the CheckBox on the CustView form. }
Accept := SQLOrdersAmountPaid.Value >= OrdersFilterAmount;
end;
end.