AccessStudy/AccessStudy.Core/StudentServer.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Text;

namespace AccessStudy.Core
{
    public class StudentServer
    {
        private OledbUtil dbUtil = new OledbUtil();

        public List<Student> GetAll()
        {
            List<Student> students = new List<Student>();

            var dataTable = dbUtil.GetDataTable("Student");

            foreach (DataRow row in dataTable.Rows)
            {
                var student = new Student()
                {
                    Id = (int)row["Id"],
                    Name=row["Name"].ToString(),
                    Age = (int)row["Age"],
                };

                students.Add(student);
            }

            return students;
        }
    }
}