引用总值

要引用总值，请使用报告对象的 GetTotalValue 方法：

float sales = Report.GetTotalValue("TotalSales");

总计值具有 FastReport.Variant 类型。It can be directly in any expression, because the FastReport.Variant type is automatically converted to any type.例如

float tax = Report.GetTotalValue("TotalSales") * 0.2f;

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