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我正在开发使用VS2008的窗体应用程序,并尝试使用Crystal ActiveX Report Viewer 11_5(支持Khmer Unicode)查看报告。当运行时我需要更改报表的数据源作为内置在VS 2008中的Crystal Report Viewer可以但我总是得到这个错误短信“尝试读取或写入受保护的内存。这往往表明其他内存已损坏。”Crystal ActiveX Report Viewer 11.5运行时更改数据源
Here is my code:
Dim FRM As New frmOtherReport
Dim app As New CRAXDDRT.Application
Dim rpt As CRAXDDRT.Report
Dim tbl As CRAXDDRT.DatabaseTable
Dim tbls As CRAXDDRT.DatabaseTables
rpt = app.OpenReport(ReportsURL + "rptStudentListAll.rpt")
For Each tbl In rpt.Database.Tables
tbl.ConnectionProperties.DeleteAll()
tbl.ConnectionProperties.Add("Provider", "SQLOLEDB")
tbl.ConnectionProperties.Add("Data Source", My.Settings.Datasource)
tbl.ConnectionProperties.Add("Initial Catalog", My.Settings.Database)
'tbl.ConnectionProperties.Add("Integrated Security", "True") ' cut for sql authentication
tbl.ConnectionProperties.Add("User Id", My.Settings.Username) ' add for sql authentication
tbl.ConnectionProperties.Add("Password", My.Settings.Password) ' add for sql authentication
Next tbl
'This removes the schema from the Database Table's Location property.
tbls = rpt.Database.Tables
For Each tbl In tbls
With tbl
.Location = .Name
End With
Next
'View the report
rpt.Database.Tables(1).SetDataSource(myDataTable) 'error location
FRM.AxCrystalActiveXReportViewer1.ReportSource = rpt
FRM.AxCrystalActiveXReportViewer1.ViewReport()
FRM.Show()
任何意见赞赏。