fastreport一些使用方法

 

uses Printers     txtPrinterName.Items.Assign(Printer.Printers);     frxReport1.LoadFromFile(AppConfig.ReportPath + ReportId + '.fr3');     frxReport1.PrintOptions.Printer := txtPrinterName.Text;     frxReport1.PrintOptions.ShowDialog := False;     frxReport1.PrintOptions.Copies := StrToInt(txtCopies.Text);     frxReport1.PrintOptions.PageNumbers := txtPageRange.Text;     frxReport1.ShowProgress := False;     {$IFDEF DEBUG}       frxReport1.ShowReport(True);     {$ELSE}       frxReport1.PrepareReport(True);       frxReport1.Print;     {$ENDIF} FASTREPORT分组合计字段处理 [SUM(<frxDBDataset1."Pieces">,0,0)] [SUM(<frxDBDataset1."Pieces">,0,0) - SUM(<frxDBDataset1."ReceivedPieces">,0,0)]