public void DataintheDateRange()
        {
            Console.WriteLine("Enter the Starting Date of DateRange");
            DateTime startDate = Convert.ToDateTime(Console.ReadLine());

            Console.WriteLine("Enter the End Date of DateRange");
            DateTime endDate = Convert.ToDateTime(Console.ReadLine());

            List <DataRow> data = AddressDetailsforSQLqueries.ContactDetailsBetweenDateRange(startDate, endDate);

            foreach (DataRow dataRow in data)
            {
                Console.WriteLine(dataRow.Field <string>("firstName"));
            }
        }