Execute a query and map it to a list of dynamic objects

please extend DbContext.Database.SqlQuery to support dynamic type for map query to a list of dynamic objects. for example:

var results = DbContext.Database.SqlQuery<dynamic>("SELECT * FROM Kids");
var id = result.First().Id;
var name = result.First().Name;
var age = result.First().Age ?? 0; // null support
foreach (var item in results)
{
     Console.WriteLine("{0}:{1}", item.Name, item.Age);
}

[ChristineBoersen]

**NOTE this was written against pre RTM version of .Net core and may need to be modified to work with 1.0 RTM and newer versions of the framework

Attached is some code that provides this functionality with the existing framework. Let me know if this helps any.

    public static IEnumerable<dynamic> CollectionFromSql(this DbContext dbContext, string Sql, Dictionary<string, object> Parameters)
    {
        using (var cmd = dbContext.Database.GetDbConnection().CreateCommand())
        {
            cmd.CommandText = Sql;
            if (cmd.Connection.State != ConnectionState.Open)
                cmd.Connection.Open();

            foreach (KeyValuePair<string, object> param in Parameters)
            {
                DbParameter dbParameter = cmd.CreateParameter();
                dbParameter.ParameterName = param.Key;
                dbParameter.Value = param.Value;
                cmd.Parameters.Add(dbParameter);
            }

            //var retObject = new List<dynamic>();
            using (var dataReader = cmd.ExecuteReader())
            {

                while (dataReader.Read())
                {
                    var dataRow = GetDataRow(dataReader);
                    yield return dataRow ;

                }
            }


        }
    }

    private static dynamic GetDataRow(DbDataReader dataReader)
    {
        var dataRow = new ExpandoObject() as IDictionary<string, object>;
        for (var fieldCount = 0; fieldCount < dataReader.FieldCount; fieldCount++)
            dataRow.Add(dataReader.GetName(fieldCount), dataReader[fieldCount]);
        return dataRow;
    }

Usage:

List<dynamic> MyList = MyDbContext.CollectionFromSql("SELECT * FROM \"User\" WHERE UserID = @UserID",
            new Dictionary<string, object> { { "@UserID", 1 } }).ToList();

You will notice I used a Dictionay<string, object> since there are still some issues with passing a DbParameter currently - Support passing DbParameter instances to raw SQL APIs #3115

[fixko]

In ChristineBoersen code Just replace dbContext.Database.GetDbConnection().CreateCommand() with dbContext.Database.Connection.CreateCommand()