frmnewcourse.cs

大二做的课程设计。一个学生信息管理系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Students1
{
    using StudentLibrary.Business;
    public partial class frmNewCourse : Form
    {
        public frmNewCourse()
        {
            InitializeComponent();
        }
        private void GetSubject()
        {
            Subjects subjects = new Subjects();
            DataSet dataSet = new DataSet();
            try
            {
                dataSet = subjects.SelectSubject(
                    -1,
                    "");
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
                this.Close();
                subjects.Dispose();
                return;
            }
            this.cboSubject.DataSource = dataSet.Tables[0];
            this.cboSubject.ValueMember = "SubjectId";
            this.cboSubject.DisplayMember = "SubjectName";
        }

        private void GetClass()
        {
            Classs classs = new Classs();
            DataSet dataSet = new DataSet();
            try
            {
                dataSet = classs.SelectClass(
                    -1,
                    "");
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
                this.Close();
                return;
            }
            this.cboClass.DisplayMember = "ClassName";
            this.cboClass.ValueMember = "ClassId";
            this.cboClass.DataSource = dataSet.Tables[0];
        }

        /// <summary>
        /// 添加课程信息
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            Courses courses = new Courses();
			courses.InsertCourse(
				Convert.ToInt32(this.cboClass.SelectedValue),
				Convert.ToInt32(this.cboSubject.SelectedValue),
				this.txtBegainTime.Value,
				this.txtEndTime.Value,
				this.txtRemark.Text);
            MessageBox.Show("建立成功");
            this.Close();
        }

        /// <summary>
        ///  退出
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void frmNewCourse_Load(object sender, EventArgs e)
        {
            GetClass();
            GetSubject();
        }
    }
}