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我正在尝试在ActiveReport. 但截面高度限制为 2 英寸。它只需要 (2/0.2 = )10 个项目。我希望该部分随着内容的增加而增加其高度，以便它可以采用所有项目。似乎.CanGrow不起作用。我正在使用的代码如下。

Dim lObjSecRpt As New GrapeCity.ActiveReports.SectionReport()
Dim lObjLbl As New GrapeCity.ActiveReports.SectionReportModel.Label()
Dim c As Single = 0.2F

Try

lObjSecRpt.Sections.InsertPageHF()
lObjSecRpt.Sections(0).BackColor = Color.WhiteSmoke
lObjSecRpt.Sections(0).Height = 0.0F

lObjSecRpt.Sections.Insert(1, New GrapeCity.ActiveReports.SectionReportModel.Detail())
lObjSecRpt.Sections(1).BackColor = Color.WhiteSmoke
lObjSecRpt.Sections(1).CanGrow = True

For Each dr As DataRow In mObjDtReport.Rows
    lObjLbl = New GrapeCity.ActiveReports.SectionReportModel.Label()

    lObjLbl.Alignment = GrapeCity.ActiveReports.Document.Section.TextAlignment.Left
    lObjLbl.Font = New System.Drawing.Font("Arial", 10, FontStyle.Regular)
    lObjLbl.Location = New PointF(0.0F, c)
    lObjLbl.Height = 0.2F
    lObjLbl.Width = 1.0F
    lObjLbl.Text = CStr(dr("RptObjNam"))
    lObjSecRpt.Sections(1).Controls.Add(lObjLbl)
    c += c
Next

Me.rptViewer.LoadDocument(lObjSecRpt)
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1 回答 1

1

阿马尔，

您在代码中尝试做的是创建部分并动态添加控件到这些部分。所以这就像在运行时创建报表布局。由于您只是将控件添加到细节部分，因此细节部分的格式事件不会为每个控件触发，因为它没有绑定到任何数据。相反，您只是向它添加控件。您可以在此处查看动态创建报告的示例。

如果您希望细节部分应该增长以显示所有添加的控件，那么您需要根据其中控件的总高度增加其高度。例如检查下面的示例代码，它演示了如何做到这一点。您只需将此代码添加到 Form_Load 事件中即可进行验证。

    Dim lObjLbl As New GrapeCity.ActiveReports.SectionReportModel.Label()
Dim c As Single = 0.2F
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
    Dim rpt As New GrapeCity.ActiveReports.SectionReport
    rpt.Sections.InsertPageHF()
    rpt.Sections(0).BackColor = Color.Yellow
    rpt.Sections(0).Height = 1.0F
    rpt.Sections.Insert(1, New GrapeCity.ActiveReports.SectionReportModel.Detail())
    rpt.Sections(1).Name = "Detail"
    rpt.Sections("Detail").BackColor = Color.Gainsboro
    rpt.Sections("Detail").CanGrow = True

    Dim i As Integer
    For i = 0 To 20
        Dim lObjLbl As New GrapeCity.ActiveReports.SectionReportModel.Label()
        lObjLbl.Alignment = GrapeCity.ActiveReports.Document.Section.TextAlignment.Left
        lObjLbl.Font = New System.Drawing.Font("Arial", 10, FontStyle.Regular)
        lObjLbl.Location = New PointF(0.0F, c)
        lObjLbl.Size = New SizeF(1.0F, 0.2F)
        lObjLbl.Text = "Record: " + i.ToString()
        lObjLbl.BackColor = Color.Aqua
        rpt.Sections("Detail").Controls.Add(lObjLbl)
        c += 0.2
    Next
    Dim height As Double = 0
    For Each control As GrapeCity.ActiveReports.SectionReportModel.ARControl In rpt.Sections("Detail").Controls
        height = height + control.Height
    Next
    rpt.Sections("Detail").Height = height
    Viewer1.LoadDocument(rpt)
End Sub

我希望这有帮助。

于 2014-11-17T04:25:47.607 回答