用WinForm写的员工考勤项目！！！！！！

先说几句，作为一个还在学习的程序员，掌握的知识有限；但我利用自身所学，给一些像我一样还在学习的码农提供我的绵薄之力！

写的不好，但是尽力了，希望大牛指点。多多吐槽！！！

   好了开始说项目需求: 实现新增员工；使用DataGridView控件展示员工信息；实现根据员工工号进行模糊查询；实现删除员工信息；每天只能签到一次；签退前必须已经签到

看到这些需求，我们先要思考下该做什么，理清思路才能更快的完成项目。我通常先搭建窗体，然后根据要求逐步实现项目要求！

这是我们所要用的到的三个窗体

我们建一个辅助类，初始化一个单列的泛型集合，给单列的泛型集合付个初值

class Worker
    {
        private string id;
        private string name;
        private int age;
        private string sex;
        public string ID
        {
            get
            {
                return id;
            }

            set
            {
                id = value;
            }
        }

        public string Name
        {
            get
            {
                return name;
            }

            set
            {
                name = value;
            }
        }

        public int Age
        {
            get
            {
                return age;
            }

            set
            {
                age = value;
            }
        }

        public string Sex
        {
            get
            {
                return sex;
            }

            set
            {
                sex = value;
            }
        }
        
        public static List<Worker> list = new List<Worker>();
        public static void Insert()
        {
            Worker w1 = new Worker();
            w1.ID = "20090101";
            w1.Name = "王小毛";
            w1.Age = 20;
            w1.Sex = "男";
            list.Add(w1);
            Worker w2 = new Worker();
            w2.ID = "20090102";
            w2.Name = "周新雨";
            w2.Age = 19;
            w2.Sex = "女";
            list.Add(w2);
        }
    }

　这是员工信息维护窗体的Load事件的代码

 private void FrmSecond_Load(object sender, EventArgs e)
        {
如果list没有数据就添加数据，确保调用这个窗体是，只有在没有数据时才能添加数据！
            if (Worker.list.Count==0)
            {
                Worker.Insert();
            }
清除datagridview的英文列，并且绑定数据
            dgvList.AutoGenerateColumns = false;
            dgvList.DataSource = Worker.list;
        }

　这是新增里的代码

private void toolStripButton1_Click(object sender, EventArgs e)
        {
调用添加员工员工信息窗体
            FrmFirst ff = new FrmFirst();
            this.Hide();
            ff.Show();
        }

private void btn1_Click(object sender, EventArgs e)
        {
确保一个工号只能添加一次
            foreach (Worker item in Worker.list)
            {
                if (item.ID==txt01.Text)
                {
                    MessageBox.Show("工号已存在！！！！");
                    return;
                }
               
            }
添加一个员工信息
            Worker w1 = new Worker();
            w1.ID = txt01.Text;
            w1.Name = txt03.Text;
            w1.Age = Convert.ToInt32(txt02.Text);
            w1.Sex =cob01.Text;
            Worker.list.Add(w1);
            FrmSecond fs = new FrmSecond();
            this.Close();
            fs.Show();

        }

　

这是删除的代码
private void toolStripButton3_Click(object sender, EventArgs e)
        {
提示点击是才会删除
            DialogResult result = MessageBox.Show("提示","是否删除",MessageBoxButtons.YesNo,MessageBoxIcon.Question);
            if(result==DialogResult.Yes)
            {

                string id = dgvList.SelectedRows[0].Cells[0].Value.ToString();
                //string id = dgvList.SelectedCells[0].Value.ToString();
如果ID和我选中的ID相等才会删除
                foreach (Worker item in Worker.list)
                {
                       if(item.ID==id)
                      {
                        Worker.list.Remove(item);
                        break;
                      }
                }
            }
            //dgvList.AutoGenerateColumns = false;
            dgvList.DataSource = new BindingList<Worker>(Worker.list);

        }

　

这段是重点难点在写这段之前先建好另一个辅助类
  class Record
    {
        public string id { get; set; }
        public string name { get; set; }
        public DateTime SignInTime { get; set; }
        public DateTime SignOutTime { get; set; }
        创建一个双列泛型集合
        public static Dictionary<string, Record> relist = new Dictionary<string, Record>();
       
    }
 
public int num;
        private void 签到ToolStripMenuItem_Click(object sender, EventArgs e)
        {
给num赋值，把你选中的type值付给num
            Worker w = new Worker();
            foreach (Worker item in Worker.list)
            {
                if (item.Name == dgvList.SelectedCells[1].Value.ToString())
                {
                    w = item;
                    break;
                }
            }
            num = w.type;
判断如果num是0才可以签到
            if (num == 0)
            {
                Record r = new Record();
                r.id = dgvList.SelectedRows[0].Cells[0].Value.ToString();
                r.name = dgvList.SelectedRows[0].Cells[1].Value.ToString();
                r.SignInTime = DateTime.Now;
                Record.relist.Add(r.name, r);
给你选中的type赋值一个1
                w.type = 1;
                MessageBox.Show("签到成功");
            }
            else
            {
                MessageBox.Show("您已经签到过了");
            }
        }

        private void 签退ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Worker w = new Worker();
            foreach (Worker item in Worker.list)
            {
                if (item.Name == dgvList.SelectedCells[1].Value.ToString())
                {
                    w = item;
                    break;
                }
            }
把你选中的type赋值给num
            num = w.type;
如果num是1，才可以签退
            if (num == 1)
            {
                foreach (string item in Record.relist.Keys)
                {
                    if (item == dgvList.SelectedRows[0].Cells[1].Value.ToString())
                    {
                        Record.relist[dgvList.SelectedRows[0].Cells[1].Value.ToString()].SignOutTime = DateTime.Now;
                        w.type = 2;
                        MessageBox.Show("签退成功");
                        break;
                    }
                }
            }
如果是0证明没有签到
            else if (num == 0)
            {
                MessageBox.Show("没有签到，无法签退");

            }
否则已经签退过了
            else
            {

                MessageBox.Show("您已经签退过了");
            }

        //dgvList.AutoGenerateColumns = false;
        //dgvList.DataSource = new BindingList<Worker>(Worker.list);
    }

　　

把员工的签到信息展示在DataGridView上

private void FrmThisd_Load(object sender, EventArgs e)
        {
            dgvList.AutoGenerateColumns = false;
            BindingSource bs = new BindingSource();
            bs.DataSource = Record.relist.Values;
            dgvList.DataSource = bs;

            lbl1.Text = dgvList.RowCount.ToString();
        }