如何在 DevExpress 报告中将详细信息行作为列插入答案

【问题标题】：How Insert Detail Rows As Columns In DevExpress Reports如何在 DevExpress 报告中将详细信息行作为列插入
【发布时间】：2015-03-17 13:28:16
【问题描述】：

我正在使用 DevExpress 报告，我需要在一行中插入两个详细信息行，例如像这样（每个详细信息行 1 列）：

------------------------------------
     Detail1   |      Detail2
------------------------------------

目前，当我插入详细信息第 2 行时，它是在详细信息第 1 行下插入，例如：

-----------------------------------
           Detail1
-----------------------------------
           Detail2
-----------------------------------

我该如何解决这个问题？

【问题讨论】：

不清楚你为什么需要这个。为什么不在一个详细信息中插入所有您需要的内容，如果需要，在一个详细信息中插入两个表格？

标签： devexpress xtrareport

【解决方案1】：

您可以使用XRSubreport 对象在一行中显示两个详细信息，方法是将两个子报表并排放置⁰。因此，只需将两个 XRSubreport 对象放入您的 DetailBand 并使用 XRSubreport.BeforePrint 事件处理程序为子报表提供详细信息¹。
示例如下：

public void ShowReport()
{
    var masters = new List<Master>();

    var random = new Random();

    for (int index = 0; index < 100; index++)
    {
        var master = new Master() { ID = index, Name = "Master_" + index };

        var detailCount = random.Next(1, 10);
        for (int detailIndex = 0; detailIndex < detailCount; detailIndex++)
        {
            var detail0 = new Detail0() { ID = detailIndex, Name = "Detail_0_" + detailIndex };
            master.Details0.Add(detail0);
        }

        detailCount = random.Next(1, 10);
        for (int detailIndex = 0; detailIndex < detailCount; detailIndex++)
        {
            var detail1 = new Detail1() { ID = detailIndex, Name = "Detail_1_" + detailIndex };
            master.Details1.Add(detail1);
        }

        masters.Add(master);
    }

    var report = new XtraReport();

    var detailBand = CreateDetailBand(report, masters);
    detailBand.HeightF = 40;

    var detailReport0 = new XtraReport();
    CreateDetailBand(detailReport0, null);

    var subReport0 = new XRSubreport() { LocationF = new PointF(20, 20), WidthF = 150, ReportSource = detailReport0 };
    subReport0.BeforePrint += (s, e) =>
    {
        var currentReport = ((XRSubreport)s);
        var master = ((Master)currentReport.Report.GetCurrentRow());
        currentReport.ReportSource.DataSource = master.Details0;
    };

    detailBand.Controls.Add(subReport0);

    var detailReport1 = new XtraReport();
    CreateDetailBand(detailReport1, null);

    var subReport1 = new XRSubreport() { LocationF = new PointF(170, 20), WidthF = 150, ReportSource = detailReport1 };
    subReport1.BeforePrint += (s, e) =>
    {
        var currentReport = ((XRSubreport)s);
        var master = ((Master)currentReport.Report.GetCurrentRow());
        currentReport.ReportSource.DataSource = master.Details1;
    };

    detailBand.Controls.Add(subReport1);

    report.DataSource = masters;

    report.ShowRibbonPreview();
}

public DetailBand CreateDetailBand(XtraReport report, object DataSource)
{
    var detailBand = new DetailBand() { HeightF = 20 };

    var label = new XRLabel();
    label.DataBindings.Add(new XRBinding("Text", DataSource, "ID"));

    detailBand.Controls.Add(label);

    label = new XRLabel() { LeftF = 30 };
    label.DataBindings.Add(new XRBinding("Text", DataSource, "Name"));

    detailBand.Controls.Add(label);

    report.Bands.Add(detailBand);

    return detailBand;
}

public class Master
{
    public Master()
    {
        Details0 = new List<Detail0>();
        Details1 = new List<Detail1>();
    }

    public int ID { get; set; }
    public string Name { get; set; }

    public List<Detail0> Details0 { get; private set; }
    public List<Detail1> Details1 { get; private set; }
}

public class Detail0
{
    public int ID { get; set; }
    public string Name { get; set; }
}

public class Detail1
{
    public int ID { get; set; }
    public string Name { get; set; }
}

这里是截图：

^{⁰How to: Create a Side-by-Side Report}
^{¹How to: Create a Master-Detail Report using Subreports}

【讨论】：