david
08e42642b8
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@21 05c56307-c608-d34a-929d-697000501d7a
122 lines
3.8 KiB
ObjectPascal
122 lines
3.8 KiB
ObjectPascal
unit MasterDetailChartDemoMain;
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
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Dialogs, cxStyles, cxCustomData, cxGraphics, cxFilter, cxData,
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cxDataStorage, cxEdit, DB, cxDBData, cxGridLevel, cxClasses, cxControls,
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cxGridCustomView, cxGridCustomTableView, cxGridTableView,
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cxGridDBTableView, cxGrid, StdCtrls, DBTables, cxLookAndFeels, Menus,
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cxGridChartView, cxGridDBChartView;
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type
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TfrmMain = class(TForm)
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dbMain: TDatabase;
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mmMain: TMainMenu;
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miFile: TMenuItem;
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miExit: TMenuItem;
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miAbout: TMenuItem;
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LookAndFeelController: TcxLookAndFeelController;
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dsOrders: TDataSource;
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tblOrders: TTable;
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tblOrdersID: TAutoIncField;
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tblOrdersCustomerID: TIntegerField;
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tblOrdersProductID: TIntegerField;
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tblOrdersPurchaseDate: TDateTimeField;
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tblOrdersTime: TDateTimeField;
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tblOrdersPaymentType: TStringField;
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tblOrdersPaymentAmount: TCurrencyField;
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tblOrdersDescription: TMemoField;
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tblOrdersQuantity: TIntegerField;
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tblProducts: TTable;
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tblCustomers: TTable;
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Label1: TLabel;
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tvCustomers: TcxGridDBTableView;
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grMainLevel1: TcxGridLevel;
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grMain: TcxGrid;
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grMainLevel2: TcxGridLevel;
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chvOrders: TcxGridDBChartView;
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dsCustomers: TDataSource;
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tvCustomersID: TcxGridDBColumn;
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tvCustomersFirstName: TcxGridDBColumn;
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tvCustomersLastName: TcxGridDBColumn;
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tvCustomersCompany: TcxGridDBColumn;
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tvCustomersAddress: TcxGridDBColumn;
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tvCustomersCity: TcxGridDBColumn;
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tvCustomersState: TcxGridDBColumn;
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tvCustomersZipCode: TcxGridDBColumn;
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tvCustomersEmail: TcxGridDBColumn;
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chvOrdersPaymentAmountSeries: TcxGridDBChartSeries;
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chvOrdersProductIDSeries: TcxGridDBChartSeries;
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chvOrdersQuantitySeries: TcxGridDBChartSeries;
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qryProducts: TQuery;
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grMainLevel3: TcxGridLevel;
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chvProducts: TcxGridDBChartView;
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dsProducts: TDataSource;
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chvProductsCopiesSeries: TcxGridDBChartSeries;
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procedure miExitClick(Sender: TObject);
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procedure miAboutClick(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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procedure chvOrdersGetValueHint(Sender: TcxGridChartView;
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ASeries: TcxGridChartSeries; AValueIndex: Integer;
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var AHint: String);
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procedure chvOrdersCategoriesGetValueDisplayText(Sender: TObject;
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const AValue: Variant; var ADisplayText: string);
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protected
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function GetProductName(AID: Integer): string;
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end;
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var
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frmMain: TfrmMain;
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implementation
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{$R *.dfm}
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uses
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AboutDemoForm;
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function TfrmMain.GetProductName(AID: Integer): string;
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begin
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if tblProducts.FindKey([AID]) then
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Result := (tblProducts.FieldValues['Name'])
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else
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Result := '';
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end;
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procedure TfrmMain.miExitClick(Sender: TObject);
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begin
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Close;
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end;
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procedure TfrmMain.miAboutClick(Sender: TObject);
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begin
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ShowAboutDemoForm;
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end;
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procedure TfrmMain.FormCreate(Sender: TObject);
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begin
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tvCustomers.ViewData.Rows[0].Expanded := True;
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tvCustomers.ViewData.Rows[1].Expanded := True;
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(tvCustomers.ViewData.Rows[1] as TcxGridMasterDataRow).ActiveDetailIndex := 1;
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end;
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procedure TfrmMain.chvOrdersCategoriesGetValueDisplayText(Sender: TObject;
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const AValue: Variant; var ADisplayText: string);
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begin
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ADisplayText := '#' + ADisplayText;
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end;
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procedure TfrmMain.chvOrdersGetValueHint(Sender: TcxGridChartView;
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ASeries: TcxGridChartSeries; AValueIndex: Integer; var AHint: String);
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begin
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AHint := Format('Order %s (%d copies of %s) for %s',
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[Sender.Categories.VisibleDisplayTexts[AValueIndex],
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Integer(Sender.FindSeriesByID(chvOrdersQuantitySeries.ID).VisibleValues[AValueIndex]),
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GetProductName(Integer(Sender.FindSeriesByID(chvOrdersProductIDSeries.ID).VisibleValues[AValueIndex])),
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ASeries.VisibleDisplayTexts[AValueIndex]]);
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end;
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end.
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