fastreport.net上可变数量的子报表

本文关键字：报表 net fastreport | 更新日期: 2023-09-27 18:01:49

我有一个报告，它打印了销售信息。报表的数据源是一个SellReport对象。

现在我想打印不止一个销售的信息，但不是固定数量的销售信息。我认为最好的方法是传递一个集合作为数据源，并为集合的每个SellReport生成一个子报表。

有人知道如何动态创建子报表吗?

谢谢!

fastreport.net上可变数量的子报表

下面是如何使用代码

创建报表的示例
Report report = new Report();

// register the "Products" table
 report.RegisterData(dataSet1.Tables["Products"], "Products");
// enable it to use in a report
 report.GetDataSource("Products").Enabled = true;

// create A4 page with all margins set to 1cm
ReportPage page1 = new ReportPage();
 page1.Name = "Page1";
 report.Pages.Add(page1);

// create ReportTitle band
 page1.ReportTitle = new ReportTitleBand();
 page1.ReportTitle.Name = "ReportTitle1";
// set its height to 1.5cm
 page1.ReportTitle.Height = Units.Centimeters * 1.5f;

// create group header
GroupHeaderBand group1 = new GroupHeaderBand();
 group1.Name = "GroupHeader1";
 group1.Height = Units.Centimeters * 1;
// set group condition
 group1.Condition = "[Products.ProductName].Substring(0, 1)";
// add group to the page.Bands collection
 page1.Bands.Add(group1);

// create group footer
 group1.GroupFooter = new GroupFooterBand();
 group1.GroupFooter.Name = "GroupFooter1";
 group1.GroupFooter.Height = Units.Centimeters * 1;

// create DataBand
DataBand data1 = new DataBand();
 data1.Name = "Data1";
 data1.Height = Units.Centimeters * 0.5f;
// set data source
 data1.DataSource = report.GetDataSource("Products");
// connect databand to a group
 group1.Data = data1;

// create "Text" objects

// report title
TextObject text1 = new TextObject();
 text1.Name = "Text1";
// set bounds
 text1.Bounds = new RectangleF(0, 0, 
   Units.Centimeters * 19, Units.Centimeters * 1);
// set text
 text1.Text = "PRODUCTS";
// set appearance
 text1.HorzAlign = HorzAlign.Center;
 text1.Font = new Font("Tahoma", 14, FontStyle.Bold);
// add it to ReportTitle
 page1.ReportTitle.Objects.Add(text1);

// group
TextObject text2 = new TextObject();
 text2.Name = "Text2";
 text2.Bounds = new RectangleF(0, 0, 
   Units.Centimeters * 2, Units.Centimeters * 1);
 text2.Text = "[[Products.ProductName].Substring(0, 1)]";
 text2.Font = new Font("Tahoma", 10, FontStyle.Bold);
// add it to GroupHeader
 group1.Objects.Add(text2);

// data band
TextObject text3 = new TextObject();
 text3.Name = "Text3";
 text3.Bounds = new RectangleF(0, 0, 
   Units.Centimeters * 10, Units.Centimeters * 0.5f);
 text3.Text = "[Products.ProductName]";
 text3.Font = new Font("Tahoma", 8);
// add it to DataBand
 data1.Objects.Add(text3);

// group footer
TextObject text4 = new TextObject();
 text4.Name = "Text4";
 text4.Bounds = new RectangleF(0, 0, 
   Units.Centimeters * 10, Units.Centimeters * 0.5f);
 text4.Text = "Count: [CountOfProducts]";
 text4.Font = new Font("Tahoma", 8, FontStyle.Bold);
// add it to GroupFooter
 group1.GroupFooter.Objects.Add(text4);

// add a total
Total groupTotal = new Total();
 groupTotal.Name = "CountOfProducts";
 groupTotal.TotalType = TotalType.Count;
 groupTotal.Evaluator = data1;
 groupTotal.PrintOn = group1.Footer;
// add it to report totals
 report.Dictionary.Totals.Add(groupTotal);
 // run the report
 report.Show();

数据源示例:

  private int[] FArray;
 / create report instance
      Report report = new Report();
      / register the array
      report.RegisterData(FArray, "Array");

可以使用列表代替int[]

看一下示例'Demos' c# 'DataFromBusinessObject

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