我正在使用CrystalReportViewer
和CrystalReportSource
在我的应用程序中加载和显示.rpt文件。将MySQL连接字符串动态更改为Crystal Reports
我的情况是这样的:
说一个人创建Crystal Reports报表我的应用程序之外和数据源设置为数据库。然后我在我的应用程序中使用该.rpt文件,但我需要将它绑定到不同的数据库(与表结构和列名称相同,但具有不同的连接字符串和用户名和密码)。
如何在VB.NET代码中做到这一点?
目前我使用加载报告:
Public Function SetReportSource(ByVal RptFile As String) As ReportDocument
Try
Dim crtableLogoninfo As New TableLogOnInfo()
Dim crConnectionInfo As New ConnectionInfo()
Dim CrTables As Tables
Dim CrTable As Table
If System.IO.File.Exists(RptFile) Then
Dim crReportDocument As New ReportDocument()
crReportDocument.Load(RptFile)
With crConnectionInfo
.ServerName = "DRIVER={MySQL ODBC 5.1 Driver};SERVER=localhost;Port=3306;UID=root;"
.DatabaseName = gDatabaseName
.UserID = gServerUser
.Password = gServerPassword
End With
CrTables = crReportDocument.Database.Tables
For Each CrTable In CrTables
CrTable.ApplyLogOnInfo(crtableLogoninfo)
CrTable.LogOnInfo.ConnectionInfo.ServerName = crConnectionInfo.ServerName
CrTable.LogOnInfo.ConnectionInfo.DatabaseName = crConnectionInfo.DatabaseName
CrTable.LogOnInfo.ConnectionInfo.UserID = crConnectionInfo.UserID
CrTable.LogOnInfo.ConnectionInfo.Password = crConnectionInfo.Password
'Apply the schema name to the table's location
CrTable.Location = gDatabaseName & "." & CrTable.Location
Next
crReportDocument.VerifyDatabase()
SetReportSource = crReportDocument
Else
MsgBox("Report file not found...", MsgBoxStyle.Critical, proTitleMsg)
End If
Catch ex As Exception
System.Windows.Forms.MessageBox.Show("Error Found..." & vbCrLf & "Error No : " & Err.Number & vbCrLf & "Description :" & Err.Description & vbCrLf & vbCrLf & "Line no : " & Err.Erl & vbCrLf & "Procedure name : SetReportSource" & vbCrLf & "Module name : GeneralFunctions", proTitleMsg)
End Try
End Function