1.搭建窗体
点名器实现页面效果图
需要实现功能块
统计添加后的姓名
添加页面
删除页面
修改页面
首先创建一个Person类 用到了List<T> 集合初始化
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;
namespace 点名器
{
[Serializable]
public class Person
{
public List<Person> list = new List<Person>();
public string name { get; set; }
public string imageindex { get; set; }
public void Save()
{
FileStream fs = new FileStream("save.bin",FileMode .OpenOrCreate);//导命名空间using System.IO;
BinaryFormatter bf = new BinaryFormatter(); //导命名空间using System.Runtime.Serialization.Formatters.Binary;
bf.Serialize(fs, list);
fs.Close();
}
public void Return()
{
//首先定义一个数组
FileStream fs = new FileStream("save.bin",FileMode.Open);
BinaryFormatter bf = new BinaryFormatter();
list = (List< Person>) bf.Deserialize(fs);
}
}
}
在主窗体中调用各页面,和Timer事件 在退出的时候保存用到了序列化和反序列化
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 点名器
{
public partial class FrmMain : Form
{
public FrmMain()
{
InitializeComponent();
}
List<Person> List = new List<Person>();
Person Main = new Person();
private void FrmMain_Load(object sender, EventArgs e)
{
//主窗体页面
Main.Return();
List = Main.list;
}
private void btnEntry_Click(object sender, EventArgs e)
{
//登录按钮
this.timer.Enabled = true;
}
private void btnCease_Click(object sender, EventArgs e)
{
//停止按钮
this.timer.Enabled = false;
}
int i = 0;
private void timer_Tick(object sender, EventArgs e)
{
//时间控件
if (i < List.Count)
{
txtFortunate.Text = List[i].name;
//把图片放在bin目录下 新建文件夹下中
this.pictureBox1.Image = Image.FromFile("新建文件夹\\"+i+".jpg");//图片
i++;
}
else
{
i = 0;
}
}
private void 查询ToolStripMenuItem_Click(object sender, EventArgs e)
{
//查询
FrmInquiry frm = new FrmInquiry();
frm.Inquiry.list = List;
frm.Show();
}
private void 增加ToolStripMenuItem_Click(object sender, EventArgs e)
{
//增加
FrmAdd frm = new FrmAdd();
frm.adds.list = List;
frm.Show();
}
private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
{
//删除
FrmAdd frm = new FrmAdd();
frm.adds.list = List;
frm.num = 1;
frm.btnAdd.Text = "删除";
frm.Text = "删除";
frm.lblName.Text = "请输入要删除的人";
frm.Show();
}
private void 修改ToolStripMenuItem_Click(object sender, EventArgs e)
{
//修改
FrmRevise frm = new FrmRevise();
frm.Revise.list = List;
frm.Show();
}
private void FrmMain_FormClosing(object sender, FormClosingEventArgs e)
{
DialogResult result = MessageBox.Show("是否保存?", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning);
if (result == DialogResult.OK)
{
Main.Save();
MessageBox.Show("保存成功!");
}
}
}
}
统计人数 用到了forearm遍历输出
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 点名器
{
public partial class FrmInquiry : Form
{
public FrmInquiry()
{
InitializeComponent();
}
public Person Inquiry = new Person();
private void FrmInquiry_Load(object sender, EventArgs e)
{
foreach (Person item in Inquiry.list)
{
listBox.Items.Add(item.name);
}
}
}
}
1添加和删除用到了同一个页面(窗体的复用),实现了各自的功能块
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 点名器
{
public partial class FrmAdd : Form
{
public FrmAdd()
{
InitializeComponent();
}
public Person adds = new Person();
public int num = 0;
Person ps = new Person();
private void btnAdd_Click(object sender, EventArgs e)
{
if(string.IsNullOrEmpty(txtName.Text))
{
MessageBox.Show("不能为空!");
return;
}
if (num == 0)
{
ps.name = this.txtName.Text;
foreach (Person item in adds.list)
{
if (item.name == ps.name)
{
MessageBox.Show("已经存在!");
return;
}
}
adds.list.Add(ps);
MessageBox.Show("增加成功!");
txtName.Text = "";
}
else
{
ps.name = this.txtName.Text;
foreach (Person item in adds.list )
{
if (item.name == ps.name)
{
adds.list.Remove(item);
MessageBox.Show("删除成功!");
return;
}
}
MessageBox.Show("删除失败!");
}
txtName.Text = "";
txtName.Focus();
}
}
}
1.修改中,判断了listBox控件中是否存在该人,存在就修改,否则输出没有该人,请确定后重新修改
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace 点名器
{
public partial class FrmRevise : Form
{
public FrmRevise()
{
InitializeComponent();
}
public Person Revise = new Person();
private void btnRevise_Click(object sender, EventArgs e)
{
Person ps = new Person();
ps.name = this.txtFront.Text;
foreach (Person item in Revise.list)
{
if (item.name == this.txtFront.Text)
{
DialogResult result = MessageBox.Show("是否修改?", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning);
if (result == DialogResult.OK)
{
item.name = txtBehind.Text;
MessageBox.Show("修改成功!");
return;
}
else
{
MessageBox.Show("修改失败!");
txtFront.Focus();
return;
}
}
}
MessageBox.Show("没有此人!");
}
}
}
时间： 2024-10-13 08:21:29