Get the column names and rows from a DbDataReader to a List

Question

I'm trying to execute stored procedure. The stored procedure name is given dynamically. Basically it's for a reporting suite. When the user select the report name from the dropdown, it will pass the name of the sp to the action result which returns a set of data, I managed to get the results from the sp into the List dataList. Now I'm trying to get the column names to be added in the List dataList. Any help would be appreciated

var cmd = _ctx.Database.GetDbConnection().CreateCommand();

cmd.CommandText = uspName;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@inparam_Fromdate", DateTime.Now.AddDays(1));
cmd.Parameters.Add(new SqlParameter("@inparam_Todate", "DateTime.Now.AddDays(2)));

cmd.Connection.Open();

using (var reader = cmd.ExecuteReader())
{
    List<string[]> dataList = new List<string[]>();

    while (reader.Read())
    {
        string[] tempRow = new string[reader.FieldCount];
        for (var i = 0; i < reader.FieldCount; i++)
        {
            tempRow[i] = Convert.ToString(reader.GetValue(i));
        }

        dataList.Add(tempRow);
    }


}

Answer 1

cmd.CommandText = uspName;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@inparam_Fromdate", "2019-05-05"));
cmd.Parameters.Add(new SqlParameter("@inparam_Todate", "2019-05-22"));

cmd.Connection.Open();

using (var reader = cmd.ExecuteReader())
{
    var dataList = new List<string[]>();

    var tempCol = new string[reader.FieldCount];
    for (var i = 0; i < reader.FieldCount; i++)
    {
        tempCol[i] = reader.GetName(i);

    }
    dataList.Add(tempCol);


    while (reader.Read())
    {
        var tempRow = new string[reader.FieldCount];
        for (var i = 0; i < reader.FieldCount; i++)
        {
            tempRow[i] = Convert.ToString(reader.GetValue(i));
        }

        dataList.Add(tempRow);
    }

}