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    Database chiuso. Controllare le chiavi AccessDB o QueryString in Web.config. System.InvalidOperationException: The ConnectionString property has not been initialized. at System.Data.OleDb.OleDbConnection.PermissionDemand() at System.Data.OleDb.OleDbConnectionFactory.PermissionDemand(DbConnection outerConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OleDb.OleDbConnection.Open() at WebSharing.DataAccess.OpenConn() in D:\RobiSoft\Sorgenti\WebSharing\Tools\DataAccess.cs:line 185