classui.cs

实现课程表编排和打印功能,通过在候选列表中选择课程和教师(没有被排课且该教师教授所选择的课程)来完成排课,代码约8000行

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

namespace 课程安排
{
    public partial class ClassUI : Form
    {
        private Grade curGrade = null;
        private bool hasModify = false;

        public ClassUI()
        {
            InitializeComponent();
            LoadDate();
        }

        // 初始化数据
        private void LoadDate()
        {
            if (School.Grades != null)
            {
                this.comboBox1.Items.Clear();
                this.comboBox1.Text = "";
                for (int i = 0; i < School.Grades.Count; i++)
                {
                    this.comboBox1.Items.Add(Utility.GetShowGradeNameFromObject(School.Grades[i]));
                }
                if (this.comboBox1.Items.Count <= 0)
                    return;
                this.comboBox1.SelectedIndex = 0;
                if (Utility.CheckComboText(this.comboBox1))
                {
                    Grade grade = Utility.GetGradeObjectFromShowName(this.comboBox1.Text);
                    LoadRelateDate(grade);
                }
            }
        }

        //  载入该年级相关的信息（教师和课程）
        private void LoadRelateDate(Grade grade)
        {
            //  列举出该年级的班级
            this.listBox1.Items.Clear();
            if (grade.Classes != null)
            {
                for (int i = 0; i < grade.Classes.Count; i++)
                {
                    listBox1.Items.Add(grade.Classes[i].ClassName);
                }
            }

            List<string> tSource = new List<string>();  // 教授该年级的教师
            List<string> tDistinct = new List<string>();  // 不教授该年级的教师
            if (grade.Teachers != null)
            {
                for (int i = 0; i < School.Teachers.Count; i++)
                {
                    Teacher t = School.Teachers[i];
                    if (!grade.HasTeacher(t))
                        tDistinct.Add(t.TeacherName);
                }
                for (int i = 0; i < grade.Teachers.Count; i++)
                {
                    tSource.Add(grade.Teachers[i].TeacherName);
                }
            }
            else
            {
                for (int i = 0; i < School.Teachers.Count; i++)
                {
                    Teacher t = School.Teachers[i];
                    tDistinct.Add(t.TeacherName);
                }
            }
            this.dragInfoControlTeacher.SourceStrings = tSource;
            this.dragInfoControlTeacher.DestinationStrings = tDistinct;

            List<string> sSource = new List<string>();
            List<string> sDistinct = new List<string>();
            if (grade.Subjects != null)
            {
                for (int i = 0; i < School.Subjects.Count; i++)
                {
                    Subject s = School.Subjects[i];
                    if (!grade.HasSubject(s))
                        sDistinct.Add(s.SubjectName);
                }
                for (int i = 0; i < grade.Subjects.Count; i++)
                {
                    sSource.Add(grade.Subjects[i].SubjectName);
                }
            }
            else
            {
                for (int i = 0; i < School.Subjects.Count; i++)
                {
                    Subject s = School.Subjects[i];
                    sDistinct.Add(s.SubjectName);
                }
            }
            this.dragInfoControlSubject.SourceStrings = sSource;
            this.dragInfoControlSubject.DestinationStrings = sDistinct;
        }

        //  保存该年级相关信息的修改
        private void SaveRelateDate(Grade grade)
        {
            List<string> tSource = this.dragInfoControlTeacher.SourceStrings;
            grade.RemoveAllTeacher();
            for (int i = 0; i < tSource.Count; i++)
            {
                Teacher t = School.GetTeacher(tSource[i]);
                grade.AddTeacher(t);
                t.AddGrade(grade);
            }

            List<string> sSource = this.dragInfoControlSubject.SourceStrings;
            grade.RemoveAllSubject();
            for (int i = 0; i < sSource.Count; i++)
            {
                Subject s = School.GetSubject(sSource[i]);
                grade.AddSubject(s);
            }

            List<string> tDestination = dragInfoControlTeacher.DestinationStrings;
            for (int i = 0; i < tDestination.Count; i++)
            {
                Teacher t = School.GetTeacher(tDestination[i]);
                t.RemoveGrade(grade);
                grade.RemoveTeacher(t);
            }


        }

        

        #region 销毁对象
        private void mDispose()
        {
            if (this.dragInfoControlSubject.HasModify || this.dragInfoControlTeacher.HasModify)
            {
                this.hasModify = false;
                this.dragInfoControlTeacher.HasModify = false;
                this.dragInfoControlSubject.HasModify = false;
                if (MessageBox.Show("是否保存修改？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                {
                    SaveRelateDate(this.curGrade);
                }
            }
        }
        protected override void OnClosing(CancelEventArgs e)
        {
            this.mDispose();
            base.OnClosing(e);
        }
        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            this.mDispose();
            base.OnFormClosing(e);
        }
        
        #endregion

        //  失去焦点时提示是否保存数据
        protected override void OnLostFocus(EventArgs e)
        {
            mDispose();
            base.OnLostFocus(e);
        }

        protected override void OnGotFocus(EventArgs e)
        {
            LoadDate();
            base.OnGotFocus(e);
        }

        //  改变所选择的年级
        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.dragInfoControlSubject.HasModify || this.dragInfoControlTeacher.HasModify)
            {
                this.hasModify = false;
                this.dragInfoControlTeacher.HasModify = false;
                this.dragInfoControlSubject.HasModify = false;
                if (MessageBox.Show("是否保存修改？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                {
                    SaveRelateDate(this.curGrade);
                }
            }
            if (Utility.CheckComboText(this.comboBox1))
            {
                this.curGrade = Utility.GetGradeObjectFromShowName(this.comboBox1.Text);
                LoadRelateDate(this.curGrade);
            }

        }

        //  添加班级
        private void button1_Click(object sender, EventArgs e)
        {
            this.addClass();
        }

        //  删除选择班级
        private void button2_Click(object sender, EventArgs e)
        {
            this.removeClass();
        }

        //  删除所有班级
        private void button3_Click(object sender, EventArgs e)
        {
            this.clearClass();
        }

        //  添加班级
        private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {
            this.addClass();
        }

        //  删除选中班级
        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.removeClass();
        }

        //  删除所有班级
        private void 删除该年级所有班级ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.clearClass();
        }

        // 修改班级名称
        private void button4_Click(object sender, EventArgs e)
        {
            this.modifyClassName();
        }
        // 修改班级名称
        private void 修改班级名称ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.modifyClassName();
        }


        //  将数据保存到数据库中
        private void 保存到数据库ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.mDispose();  // 保存数据到内存数据结构中
            
            if (School.WriteClassesToDB())
            {
                MessageBox.Show("班级信息已经保存到数据库中", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else
            {
                MessageBox.Show("信息保存失败", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }

        #region 函数部分
        private void addClass()
        {
            frmClassName f = new 课程安排.frmClassName(this.curGrade);
            f.ShowDialog();
            if (f.DialogResult == DialogResult.Yes)
            {
                string name = f.ClassName;
                if (Utility.IsNameString(name))
                {
                    if (Utility.isRepeat(School.Classes, name))
                    {
                        if (MessageBox.Show("该名称已经被使用，是否要重新输入？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                        {
                            addClass();
                        }
                    }
                    else
                    {
                        this.listBox1.Items.Add(name);
                        Class cls =  School.CreateClass(name,f.ClassStartTime);
                        cls.Grade = this.curGrade;
                        //this.hasModify = true;
                    }
                }
                else
                {
                    if (MessageBox.Show("该名称中包含了特殊字符（或为空值），是否要重新输入", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                    {
                        addClass();
                    }
                }
            }
        }

        private void removeClass()
        {
            if (this.listBox1.SelectedItems != null)
            {
                if (this.listBox1.SelectedItems.Count > 0)
                {
                    for (int i = 0; i < this.listBox1.SelectedItems.Count; i++)
                    {
                        string clsName = this.listBox1.SelectedItems[i].ToString();
                        School.RemoveClass(School.GetClass(clsName));
                        curGrade.RemoveClass(School.GetClass(clsName));
                        this.listBox1.Items.Remove(this.listBox1.SelectedItems[i]);
                    }
                    //this.hasModify = true;
                }
            }
        }

        private void clearClass()
        {
            if (this.listBox1.Items.Count > 0)
            {
                for (int i = 0; i < this.listBox1.Items.Count; i++)
                {
                    string clsName = this.listBox1.Items[i].ToString();
                    School.RemoveClass(School.GetClass(clsName));
                    this.listBox1.Items.Remove(this.listBox1.Items[i]);
                }
                curGrade.RemoveAllClass();
                this.listBox1.Items.Clear();
                //this.hasModify = true;
            }
        }



        private void modifyClassName()
        {
            if (this.listBox1.SelectedIndex >= 0)
            {
                string oldName = listBox1.SelectedItem.ToString();
                frmClassName f = new 课程安排.frmClassName(oldName);
                f.ShowDialog();
                if (f.DialogResult == DialogResult.Yes)
                {
                    string name = f.ClassName;
                    if (name != oldName)
                    {
                        if (Utility.IsNameString(name))
                        {
                            if (Utility.isRepeat(School.Classes, name))
                            {
                                if (MessageBox.Show("该名称已经被使用，是否要重新输入？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                                {
                                    modifyClassName();
                                }
                            }
                            else
                            {
                                this.listBox1.Items[listBox1.SelectedIndex] = name;
                                Class cls = School.GetClass(oldName);
                                cls.ClassName = name;
                            }
                        }
                        else
                        {
                            if (MessageBox.Show("该名称中包含了特殊字符（或为空值），是否要重新输入", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes)
                            {
                                modifyClassName();
                            }
                        }
                    }
                }
            }
        }
        #endregion

        
    }
}