Question

在command.ExecuteReader（）上执行以下代码失败，异常为：

“ERROR [] [U2] [UCINET-UO] ERROR [] [U2] [UCINET-UO] [U2] [UCINET-UO] [U2] [UCINET-UO] XTOOLSUB子程序失败。登录账号（ 2）。无效的帐户名/数据/ TSSA9。确保/ data / TSSA帐户列在ud_database文件和UD.ACCOUNT中。类名= UDAttribute方法名= GetAttributes（...）类名= UDAttribute方法名= GetAttributes（ ...）来源：U2.Data.Client TargetSite：U2.Data.Client.NativeAccess.TableInfoForNativeAccess GetTableInformation（U2.Data.Client.U2Command）“

using (var connection = ConnectionFactory.Create())
using (var command = connection.CreateCommand())
{
    command.CommandText = "Select ID From CONTRACTORS;";
    connection.Open();
    using (var reader = command.ExecuteReader())
    {
        while (reader.Read())
        {
            var o = reader[0];
        }
    }
}

public class ConnectionFactory
{
    public const string Password = "****";
    public const string UserName = "****";
    public const string Server = "****";

    public static U2Connection Create()
    {
        var connectionStringBuilder = new U2ConnectionStringBuilder
        {
            UserID = UserName,
            Password = Password,
            Server = Server,
            Database = "/data/TSSA",
            ServerType = "UNIDATA",
            AccessMode = "Native", // FOR UO
            RpcServiceType = "udcs", // FOR UO
            Connect_Timeout = 9000,
            QueryTimeout = 9000,
            PersistSecurityInfo = true,
            Pooling = false
        };

        return new U2Connection
        {
            ConnectionString = connectionStringBuilder.ToString()
        };
    }
}

我正在使用U2.Data.Client版本2.1.0.2051

任何想法或想法都将非常感激。感谢。