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Public Shared Function getConnectionInfo(ByVal str As String) As String
            'ÉùÃ÷Configuration¶ÔÏó
            Dim rootWebConfig As System.Configuration.Configuration
            '´ò¿ªConfiguration¶ÔÏó
            rootWebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(str)
            'ÉùÃ÷ConnectionStringSettings¶ÔÏó
            Dim connString As System.Configuration.ConnectionStringSettings
            'Èç¹ûÁ¬½Ó×Ö·û´®´óÓÚ£°Ôò¼ÌÐø²éÕÒÁ¬½ÓÐÅÏ¢£¬·ñÔò·µ»ØNothing
            If (0 < rootWebConfig.ConnectionStrings.ConnectionStrings.Count) Then
                connString = rootWebConfig.ConnectionStrings.ConnectionStrings("ConnectionInfo")
                '·µ»ØÁ¬½ÓÐÅÏ¢£¬Èç¹û¸Ã×Ö·û´®²»´æÔÚ£¬·µ»ØNothing
                If Not connString.ConnectionString Is Nothing Then
                    Return connString.ConnectionString
                Else
        &


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