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Home/ Questions/Q 761599
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Editorial Team
  • 0
Editorial Team
Asked: May 14, 20262026-05-14T15:51:26+00:00 2026-05-14T15:51:26+00:00

I’ve published my new website , In my computer it works fine and no

  • 0

I’ve published my new website , In my computer it works fine and no problem , But in the Server I when some user connect at the same time it crash .

I found out There is a error at this Method :

public static DbDataReader ExecuteReader(DbCommand dbCommand, CommandBehavior commandBehavior)
{
    if (dbConnection.State != ConnectionState.Open)
        dbConnection.Open();
    return dbCommand.ExecuteReader(commandBehavior);
}

When i trace it , It says ConnectionState is not open , and it’s doing opening . Here are my questions :
1- Is it a problem if while ConnectionState is doing opening , we Open the connection again ?
2- What I’ve missed , that i receive this error ?


Edit

For more information I past some part of my code here :

public class DbProviderHelper
    {
        private static DbProviderFactory dbProviderFactory;

        private static DbConnection dbConnection;

        #region dbConnexion

        public static DbConnection GetConnection()
        {
            if (dbConnection == null)
            {
                ConnectionStringsSection connectionStringsSection = GetConnectionStringsSection();
                dbProviderFactory = DbProviderFactories.GetFactory(connectionStringsSection.ConnectionStrings[1].ProviderName);
                dbConnection = dbProviderFactory.CreateConnection();
                dbConnection.ConnectionString = connectionStringsSection.ConnectionStrings[1].ConnectionString;
            }
            return dbConnection;
        }
        public static ConnectionStringsSection GetConnectionStringsSection()
        {
            return ConfigurationManager.GetSection("connectionStrings") as ConnectionStringsSection;
        }

        #endregion dbConnexion

        #region  dbCommand

        public static DbCommand CreateCommand(String commandText, CommandType commandType)
        {
            DbCommand dbCommand = dbProviderFactory.CreateCommand();
            dbCommand.Connection = dbConnection;
            dbCommand.CommandType = commandType;
            dbCommand.CommandText = commandText;


            return dbCommand;
        }

        #endregion  dbCommand

        #region dbParameter

        public static DbParameter CreateParameter(string parameterName, DbType dbType, object value)
        {
            DbParameter oDbParameter = dbProviderFactory.CreateParameter();
            oDbParameter.ParameterName = parameterName;
            oDbParameter.DbType = dbType;
            oDbParameter.Value = value;

            return oDbParameter;
        }

        #endregion dbParameter

        #region Operations

        public static DbDataReader ExecuteReader(DbCommand dbCommand)
        {
            if (dbConnection.State != ConnectionState.Open)
                dbConnection.Open();
            return dbCommand.ExecuteReader(CommandBehavior.CloseConnection);
        }
        public static int ExecuteNonQuery(DbCommand dbCommand)
        {
            try
            {
                if (dbConnection.State != ConnectionState.Open)
                    dbConnection.Open();
                return dbCommand.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                dbConnection.Close();
            }
        }
        #endregion Operations

    }

And i invote that like :

public class Configuration
{
    public Configuration()
    {
        DbProviderHelper.GetConnection();
    }
    public DbDataReader GetTabsParent(int tabId)
    {
        DbCommand oDbCommand = DbProviderHelper.CreateCommand("Portal_TabsGetParent", CommandType.StoredProcedure);
        oDbCommand.Parameters.Add(DbProviderHelper.CreateParameter("@TabID", DbType.Int32, tabId));
        DbDataReader oDbDataReader = DbProviderHelper.ExecuteReader(oDbCommand);
        return oDbDataReader;
    }
}
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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-05-14T15:51:27+00:00Added an answer on May 14, 2026 at 3:51 pm

    Is it a problem if while ConnectionState is doing opening , we Open the connection again?

    Yes, it can throw an exception.

    Straight from MSDN: SqlConnection.Open method

    InvalidOperationException:
    Cannot open a connection without specifying a data source or server.
    or
    The connection is already open

    (are you executing the method on different threads with a single shared connection?)

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