Windows程序设计(11页).doc
-Windows程序设计-第 11 页洛阳理工学院实验报告系别计算机与信息工程系班级B100505学号B10050527姓名张勋课程名称C#面向对象程序设计实验日期11.22实验名称Windows程序设计成绩实验目的：练习windows窗体的使用，掌握多种控件的属性，学会应用窗体属性和事件以及代码两种方式操作。实验条件：微机1台、Visual studio 2008实验内容与结果：1. 控制TextBox控件，使它只能输入数字。当按下退格键时，执行退格操作.并且当数据将被清空时，提醒终止删除操作，输入数据。2. 有两个组合框里分别为专业和课程，当专业选定时，课程组合框里的课程数组应属于该专业，通过增加和删除按钮可以把所选的课程添加或删除到列表框，并且在文本框内显示出列表框内的所有课程的总学分数。当没有选课程直接点击添加按钮时：选课程并添加：从列表框内删除：当再次选择“大学物理”时：当更换专业时：3. 比较numericUpDown1.UpButton()和 numericUpDown1.Value+=numericUpDown1.Increment;的区别，这里把文本框数值的上限设为20，下限设为0，增值为1.当达到上限时， numericUpDown1.UpButton()执行正常，而另一句却出现错误，语句无法执行添加快捷菜单，在窗口菜单中有大中小三个菜单项，分别控制着窗口的大小，单击右键弹出快捷菜单使快捷菜单的功能与窗口菜单相同。窗口菜单操作下：快捷菜单操作下：附加窗体的代码：（部分功能在属性中执行了，故在代码中没有设置）1. using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace p7_4 public partial class Form1 : Form public Form1() InitializeComponent(); private void textBox1_KeyPress(object sender, KeyPressEventArgs e) if (e.KeyChar >= 48 && e.KeyChar <= 57) ; else if (e.KeyChar = 8) textBox1.Text.Remove(textBox1.Text.Length - 1); if (textBox1.Text.Length = 1) MessageBox.Show("请输入数据！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Error); else e.Handled = true; private void Form1_Load(object sender, EventArgs e) 2. using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace p7_5 public partial class Form1 : Form private int totalHours = 0; public Form1() InitializeComponent(); private void Form1_Load(object sender, EventArgs e) string course = new string4 "数学", "英语", "计算机", "电子工程" ; for (int i = 0; i < 4; i+) comboBox1.Items.Add(coursei); textBox1.Text = "0" private void comboBox1_TextChanged(object sender, EventArgs e) comboBox2.Items.Clear(); listBox1.Items.Clear(); textBox1.Text = "0" Course math = new Course4 new Course("英语", 50), new Course("高等数学", 60), new Course("数理统计", 35), new Course("计算机应用基础", 40) ; Course English = new Course2 new Course("英语", 50), new Course("计算机应用基础", 40) ; Course Computer = new Course5 new Course("英语", 50), new Course("高等数学", 60), new Course("大学物理", 40), new Course("计算机应用基础", 40), new Course("计算机语言程序设计", 45) ; Course Electronic_Engineer = new Course5 new Course("英语", 50), new Course("高等数学", 60), new Course("大学物理", 40), new Course("计算机应用基础", 40), new Course("电子电工", 45) ; string s = comboBox1.Text; comboBox2.Text = "请选择" switch (s) case "数学": for (int i = 0; i < 4; i+) comboBox2.Items.Add(mathi); break; case "英语": for (int i = 0; i < 2; i+) comboBox2.Items.Add(Englishi); break; case "计算机": for (int i = 0; i < 5; i+) comboBox2.Items.Add(Computeri); break; case "电子工程": for (int i = 0; i < 5; i+) comboBox2.Items.Add(Computeri); break; void button2_Click(object sender, EventArgs e) if (listBox1.SelectedIndex != -1) Course c1 = (Course)listBox1.SelectedItem; listBox1.Items.Remove(c1); totalHours -= c1.hours; textBox1.Text = totalHours.ToString(); void button1_Click(object sender, EventArgs e) if (comboBox2.SelectedIndex != -1) Course c1 = (Course)comboBox2.SelectedItem; if (!listBox1.Items.Contains(c1) listBox1.Items.Add(c1); totalHours += c1.hours; textBox1.Text = totalHours.ToString(); else MessageBox.Show("对不起，该课程已被添加，请重选！","警告",MessageBoxButtons.OK,MessageBoxIcon.Error); else MessageBox.Show("请选择课程！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Error); public class Course public string name; public int hours; public Course(string name, int hours) this.name = name; this.hours = hours; public override string ToString() return name; 3. using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace _6 public partial class Form1 : Form public Form1() InitializeComponent(); private void Form1_Load(object sender, EventArgs e) private void numericUpDown1_MouseClick(object sender, MouseEventArgs e) numericUpDown1.UpButton(); /numericUpDown1.Value += numericUpDown1.Increment; 4. using System;using System.Drawing;using System.Windows.Forms;namespace P7_9 public partial class Form1 : Form public Form1() InitializeComponent(); menuItemWindowMiddle.Checked = true; menuItemWindowBig.Click += menuItem_Click; menuItemWindowMiddle.Click += menuItem_Click; menuItemWindowSmall.Click += menuItem_Click; void menuItem_Click(object sender, EventArgs e) ToolStripMenuItem item = (ToolStripMenuItem)sender; if (item = menuItemWindowBig | item = 大ToolStripMenuItem) item.Checked = true; menuItemWindowMiddle.Checked = menuItemWindowSmall.Checked = false; 中ToolStripMenuItem.Checked = 小ToolStripMenuItem.Checked = false; this.Size = new Size(800, 450); else if (item = menuItemWindowMiddle | item = 中ToolStripMenuItem) item.Checked = true; menuItemWindowBig.Checked = menuItemWindowSmall.Checked = false; 大ToolStripMenuItem.Checked = 小ToolStripMenuItem.Checked = false; this.Size = new Size(480, 270); else if (item = menuItemWindowSmall | item = 小ToolStripMenuItem) item.Checked = true; menuItemWindowBig.Checked = menuItemWindowMiddle.Checked = false; 大ToolStripMenuItem.Checked = 中ToolStripMenuItem.Checked = false; this.Size = new Size(240, 135); private void Form1_Load(object sender, EventArgs e) 实验总结：通过这次上机操作让我深刻的掌握了窗体的灵活性，使我学会了用属性代替代码的简便设计方法。另外在这次试验中发现，当控件的事件在事件窗体中添加时，如果在代码中也绑定了，就会出现该事件执行两次的情况。窗体是我们生活中很常见的，这次的窗体设计大大的提高了我对编程的兴趣。把课本的理论知识通过实践操作，使我对这些理论更好的理解了。
