Crystal 包含两个不同数据库的报告

Question

我在 Crystal 报告中做了一份报告，该报告从两个单独的数据库中提取数据。他们都在同一台服务器上。当我尝试运行我的 VB 应用程序的报告时，它说找不到 table。我很确定这个错误来自第二个数据库，因为如果我从报告中删除一个数据库，它就可以正常工作。

我的问题是，如何让 VB 或 Crystal 看到第二个数据库？

Answer 1

您可以在应用程序内部使用两个数据库创建数据集并将数据集应用于 crystal 数据源，而不是连接到两个数据库。

举个例子：

Private Sub btnLoad_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim ds As DataSet = New DataSet()
Dim obj As reports = New reports()
Dim crconnectioninfo As ConnectionInfo = New ConnectionInfo()
Dim crtablelogoninfos As TableLogOnInfos = New TableLogOnInfos()
Dim crtablelogoninfo As TableLogOnInfo = New TableLogOnInfo()
Dim CrTables As Tables
Try
    If _report = "ISR" Then
        crconnectioninfo.ServerName = AquaInvoice.Properties.Settings.[Default].dsn_name
        crconnectioninfo.DatabaseName = AquaInvoice.Properties.Settings.[Default].databaseclient
        crconnectioninfo.UserID = AquaInvoice.Properties.Settings.[Default].db_user
        crconnectioninfo.Password = AquaInvoice.Properties.Settings.[Default].db_password

        'Set report path
        Dim AppPath As String = Application.StartupPath & "\Reports\rptInvoiceSummary.rpt"
        'load report
        reportDocument1.Load(AppPath)

       'Retrieve data to Dataset from the database. Here you can access two databases and create one dataset in you Data Layer
        ds = obj.InvoiceSearchBox(dtpStart.Value.Date, dtpEnd.Value.Date)

        'Set report source
        reportDocument1.Database.Tables(0).SetDataSource(ds.Tables(0))
        reportDocument1.Database.Tables(1).SetDataSource(ds.Tables(1))
        'Set parameter values
        reportDocument1.SetParameterValue("Start", dtpStart.Value.Date)
        reportDocument1.SetParameterValue("End", dtpEnd.Value.Date)
        'set viewer
        crvDateRangeReports.ReportSource = reportDocument1
        crvDateRangeReports.Refresh()
    End If
Catch ex As Exception
    Throw New Exception("Report load faild!", ex)
End Try
End Sub
'This code originally c# and converted to vb using online code converter

Crystal 包含两个不同数据库的报告

Crystal Reports with two different databases

vb.net

crystal-reports