utilizzo stringa di connessione

[kontimatteo]

In cima:
Imports System.Data.OleDb
Imports System.Configuration
........poi.......
Dim conn As New Data.Odbc.OdbcConnection(System.Configuration.Conf igurationManager.AppSettings("conn"))
conn.Open()

errore:
Message="The ConnectionString property has not been initialized."

System.InvalidOperationException was unhandled by user code
Message="The ConnectionString property has not been initialized."
Source="System.Data"
StackTrace:
at System.Data.Odbc.OdbcConnection.PermissionDemand()
at System.Data.Odbc.OdbcConnectionFactory.PermissionD emand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenCo nnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.Odbc.OdbcConnection.Open()

In cosa consiste?? Sembra un errore idiota...

[DarioN1]

Verifica che la connection strings sia formattata correttamente nel webconfig

[kontimatteo]

Si ho risolto ora in questo modo... spero sia corretto...
Dim conn As New Data.Odbc.OdbcConnection(System.Configuration.Conf igurationManager.AppSettings("conn"))
conn.ConnectionString =System.Configuration.ConfigurationManager.Connect ionStrings("conn").ConnectionString
conn.Open()

Fate sapere...Thanks!