CourseBLL/TeacherManager.cs

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using System;
using System.Collections.Generic;
using System.Text;
using Course.Models;
using Course.DAL;
using System.Data;

namespace Course.BLL
{
    public class TeacherManager
    {
        TeacherService teacherService = new TeacherService();
        /// <summary>
        /// 添加教师
        /// </summary>
        /// <param name="teacher"></param>
        /// <returns></returns>
        public string AddTeacher(Teacher teacher)
        {
            return teacherService.AddTeacher(teacher);
        }
        /// <summary>
        /// 得到所有教师的集合
        /// </summary>
        /// <returns></returns>
        public DataTable GetAllTeacher()
        {
            return teacherService.GetAllTeacher();
        }
        /// <summary>
        /// 根据教师名字得到 Teacher
        /// </summary>
        /// <param name="teacherName"></param>
        /// <returns></returns>
        public Teacher GetTeacherByTeacherName(string teacherName)
        {
            return teacherService.GetTeacherByTeacherName(teacherName);
        }
        /// <summary>
        /// 通过教师Id得到 teacher
        /// </summary>
        /// <param name="teacherId"></param>
        /// <returns></returns>
        public Teacher SelectTeacherByTeacherId(int teacherId)
        {
            return teacherService.SelectTeacherByTeacherId(teacherId);
        }
         /// <summary>
        /// 修改教师信息
        /// </summary>
        /// <param name="teacher"></param>
        /// <returns></returns>
        public string UpdateTeacher(Teacher teacher)
        {
            return teacherService.UpdateTeacher(teacher);
        }
        /// <summary>
        /// 查看教师是否还有课程
        /// </summary>
        /// <param name="teacher"></param>