用 CrystalReportViewer1 控件在asp.net的网页上显示报表，假设做报表时调用数据表数据的方式调用是能够成功的。但报表是用存储过程获取数据方式会出现下面错误：
找不到表'RptOpenCheck;1' 。 文件 G:\TEMP\FO-OpenCheck {6D191F06-DECF-4A25-88FC-8553E3D435AA}.rpt 内出错： 找不到表。
Error: 未将对象引用设置到对象的实例。
The table 'RptOpenCheck;1' could not be found. Error in File G:\TEMP\FO-OpenCheck {6D191F06-DECF-4A25-88FC-8553E3D435AA}.rpt: The table could not be found.
未能打开该连接。 未能打开该连接。
G:\TEMP\FO-OpenCheck {4E60249E-FC16-4F3D-A610-138FC3297171}.rpt
VS2005 环境，Crsytal Reports 11.5
代码下面：
Dim crtableLogoninfos As New TableLogOnInfos
Dim crtableLogoninfo As New TableLogOnInfo
Dim crConnectionInfo As New ConnectionInfo
Dim crParameterFields As ParameterFields
Dim crParameterField As ParameterField
Dim crParameterValues As ParameterValues
Dim crParameterDefValues As ParameterValues
Dim crParameterValue As ParameterValue
Dim crParameterDiscreteValue As ParameterDiscreteValue
Dim CrTables As Tables
Dim CrTable As Table
Dim ReportName As String
Dim PrintTo As String ' P Printer V Window
Dim ReportPath As String
Dim UserName As String
Dim Password As String
Dim ServerName As String
Dim DatabaseName As String
Dim crReportDocument As New ReportDocument
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load, Me.Load
Dim strParam As String = Request("p")
'获取用户请求參数
If Right(strParam, 1) = "~" Then
strParam = Mid(strParam, 1, Len(strParam) - 1)
End If
'參数转换为数组
s = Split(strParam, "~")
'use odbc connection database
With crConnectionInfo
.AllowCustomConnection = True
.ServerName = ”ODBCName"
'.DatabaseName = "TempDB"
.UserID = "sa"
.Password = "Microwin"
End With
''use SQL connection database
'With crConnectionInfo
' .AllowCustomConnection = True
' .ServerName = "(local)"
' .DatabaseName = "TempDB"
' .UserID = "sa"
' .Password = "Microwin"
'End With
'指定报表路径
ReportPath = Server.MapPath(Request.ApplicationPath)
ReportNamePath = ReportPath & "\testing.rpt"
'check report file exists and Load Report
If System.IO.File.Exists(ReportNamePath) Then
crReportDocument.Load(ReportNamePath)
End If
'设置报表文档给报表控件
Me.CrystalReportViewer1.ReportSource = crReportDocument
'设置连接数据库信息给报表文档
CrTables = crReportDocument.Database.Tables
For Each CrTable In CrTables
crtableLogoninfo = CrTable.LogOnInfo
crtableLogoninfo.ConnectionInfo = crConnectionInfo
CrTable.ApplyLogOnInfo(crtableLogoninfo)
'就是这句没有加，所以会出现以上错误信息。仅仅有报表是调用存储过程取数据时才会出现错误。花了我几天时间，最终攻克了。
CrTable.Location = CrTable.Name
Next
'设置控件显示的属性
With CrystalReportViewer1
.AutoDataBind = True
.ReuseParameterValuesOnRefresh = True
.EnableDatabaseLogonPrompt = False
.EnableParameterPrompt = False
CrystalReportViewer1.DisplayGroupTree = False
CrystalReportViewer1.DisplayPage = True
CrystalReportViewer1.DisplayToolbar = True
CrystalReportViewer1.ReportSource = crReportDocument
End With
If Not IsPostBack Then
'取用户请求的參数赋值给报表。假设报表须要參数的话。从第三个元素開始为报表參数值。
crParameterFields = Nothing
crParameterFields = CrystalReportViewer1.ParameterFieldInfo
Dim j As Integer = UBound(s, 1)
For i = 0 To crParameterFields.Count - 1
crParameterField = crParameterFields.Item(i)
crParameterValues = crParameterField.CurrentValues
crParameterDefValues = Nothing
crParameterDefValues = New ParameterValues
crParameterDefValues = crParameterField.DefaultValues
crParameterDiscreteValue = Nothing
crParameterDiscreteValue = New ParameterDiscreteValue
If i > (j - 2) Then
Select Case crParameterField.ParameterValueKind
Case ParameterValueKind.BooleanParameter
crParameterDiscreteValue.Value = False
Case ParameterValueKind.CurrencyParameter
crParameterDiscreteValue.Value = Nothing
Case ParameterValueKind.DateParameter
crParameterDiscreteValue.Value = System.DateTime.Now
Case ParameterValueKind.DateTimeParameter
crParameterDiscreteValue.Value = System.DateTime.Now
Case ParameterValueKind.NumberParameter
crParameterDiscreteValue.Value = Nothing
Case ParameterValueKind.StringParameter
crParameterDiscreteValue.Value = " "
Case ParameterValueKind.TimeParameter
crParameterDiscreteValue.Value = System.DateTime.Now
End Select
crParameterValues.Add(crParameterDiscreteValue)
Else
Select Case crParameterField.ParameterValueKind
Case ParameterValueKind.BooleanParameter
crParameterDiscreteValue.Value = IIf(s(i + 2) = "0", False, True)
Case ParameterValueKind.CurrencyParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", Nothing, s(i + 2))
Case ParameterValueKind.DateParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", Nothing, s(i + 2))
Case ParameterValueKind.DateTimeParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", Nothing, s(i + 2))
Case ParameterValueKind.NumberParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", Nothing, s(i + 2))
Case ParameterValueKind.StringParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", " ", s(i + 2))
Case ParameterValueKind.TimeParameter
crParameterDiscreteValue.Value = IIf(Trim(s(i + 2) & "") = "", Nothing, s(i + 2))
End Select
crParameterValues.Add(crParameterDiscreteValue)
End If
Next
End If
End Sub