.net - rdlc 中的子报表仅显示 master 中的一条记录

Question

我有一个显示费用的报告和一个显示所有费用的子报告。这就是我将数据传递给主报告和子报告的方式

         Dim datasource As New ReportDataSource("Expenses", Ds.Tables(0))
        Me.ReportViewer1.LocalReport.ReportPath = "../../Reports/Expenses.rdlc"
        Me.ReportViewer1.LocalReport.ReportEmbeddedResource = "../../Reports/Expenses.rdlc"           
        Me.ReportViewer1.LocalReport.DataSources.Clear()
        Me.ReportViewer1.LocalReport.DataSources.Add(datasource)

        AddHandler ReportViewer1.LocalReport.SubreportProcessing, AddressOf SetSubDataSource
        Me.ReportViewer1.LocalReport.Refresh()
        Me.ReportViewer1.RefreshReport()
        Me.Show()
    End If
End Sub
Public Sub SetSubDataSource(ByVal sender As Object, ByVal e As SubreportProcessingEventArgs)
    Dim Ds As New DataSet
    Call gSetDatabaseConnection()
    Dim sqlcmd As New SqlCommand
    With sqlcmd
        .CommandType = CommandType.StoredProcedure
        .CommandText = "CV_GetPay_BY_EXP"
        .Connection = gSqlConncetion
        .Parameters.Add(New SqlParameter("@iExp", SqlDbType.Int))
        .Parameters("@iExp").Direction = ParameterDirection.Input
        .Parameters("@iExp").Value = CType(e.Parameters(0), ReportParameterInfo).Values(0)  '11747
        Dim sqladp As New SqlDataAdapter(sqlcmd)
        sqladp.Fill(Ds)
        gSqlConncetion.Close()
    End With
    Dim datasource As New ReportDataSource("Payments", Ds.Tables(0))

    Dim path As String
    path = e.ReportPath
    e.DataSources.Add(datasource)
End Sub

Answer 1

当我插入子报告时发现它应该插入组内以在每一行之后重复。