kaoqin_person.cs

这是一个考勤系统大家多多指教

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

namespace kaoqin.user
{
    public partial class kaoqin_person : Form
    {
        public kaoqin_person()
        {
            InitializeComponent();
        }

        private void BindData()
        {
            this.listBox1.Items.Clear();
            string sql = "select * from [user]";
            DataTable dt = DB.getTable(sql);
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                this.listBox1.Items.Add(dt.Rows[i]["name"].ToString().Trim());
            }
        }
        private void BindText(string name)
        {
            string sql = "select * from [user] where name='" + name + "'";
            DataTable dt = DB.getTable(sql);
            this.textBox1.Text = dt.Rows[0]["name"].ToString().Trim();
            this.textBox2.Text = dt.Rows[0]["pwd"].ToString().Trim();
            this.textBox3.Text = dt.Rows[0]["pwd"].ToString().Trim();
            this.textBox4.Text = dt.Rows[0]["realName"].ToString().Trim();
        }
        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (this.radioButton1.Checked == true)
            {
                this.lblFlag.Text = "添加";
                this.textBox1.Text = "";
                this.groupBox2.Enabled = true;
                this.textBox1.Text = "";
                this.textBox2.Text = "";
                this.textBox3.Text = "";
                this.textBox4.Text = "";
            }
        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (this.radioButton2.Checked == true)
            {
                this.lblFlag.Text = "删除";
                this.groupBox2.Enabled = false;
                if (this.listBox1.SelectedIndex == -1)
                {
                    this.textBox1.Text = "";
                    return;
                }
                this.BindText(this.listBox1.SelectedItem.ToString().Trim());
            }
        }

        private void radioButton3_CheckedChanged(object sender, EventArgs e)
        {
            if (this.radioButton3.Checked == true)
            {
                this.lblFlag.Text = "修改";
                this.groupBox2.Enabled = true;
                if (this.listBox1.SelectedIndex == -1)
                {
                    this.textBox1.Text = "";
                    return;
                }
                this.BindText(this.listBox1.SelectedItem.ToString().Trim());
            }
            else
            {
                this.groupBox2.Enabled = true;
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (this.radioButton1.Checked == true)
            {
                Add();
            }
            else if (this.radioButton2.Checked == true)
            {
                if (MessageBox.Show("你真的想要删除此记录吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
                {
                    Del();
                }
            }
            else if (this.radioButton3.Checked == true)
            {
                Mod();
            }
        }

        private void Add()
        {
            if (this.textBox1.Text.Trim() == "")
            {
                MessageBox.Show("用户名不能为空!");
                this.textBox1.Focus();
                return;
            }
            if (this.textBox2.Text.Trim() == "")
            {
                MessageBox.Show("密码不能为空!");
                this.textBox2.Focus();
                return;
            }
            if (this.textBox3.Text.Trim() == "")
            {
                MessageBox.Show("确认密码不能为空!");
                this.textBox3.Focus();
                return;
            }
            if (this.textBox4.Text.Trim() == "")
            {
                MessageBox.Show("真实姓名不能为空!");
                this.textBox4.Focus();
                return;
            }
            if (this.textBox2.Text.Trim() != this.textBox3.Text.Trim())
            {
                MessageBox.Show("两次密码不一致！");
                this.textBox3.Focus();
                return;
            }
            string sql = "select * from [user] where name='" + this.textBox1.Text.Trim() + "'";
            DataTable dt = DB.getTable(sql);
            if (dt.Rows.Count != 0)
            {
                MessageBox.Show("考勤人员" + this.textBox1.Text.Trim() + "已存在!");
                return;
            }
            sql = "insert into [user] values ('" + this.textBox1.Text.Trim() + "','" + this.textBox2.Text.Trim() + "','" + this.textBox4.Text.Trim() + "')";
            if (DB.executeSql(sql))
            {
                MessageBox.Show("操作成功!");
                this.BindData();
            }
            else
            {
                MessageBox.Show("操作失败!");
            }
        }
        private void Mod()
        {
            if (this.textBox1.Text.Trim() == "")
            {
                MessageBox.Show("用户名不能为空!");
                this.textBox1.Focus();
                return;
            }
            if (this.textBox2.Text.Trim() == "")
            {
                MessageBox.Show("密码不能为空!");
                this.textBox2.Focus();
                return;
            }
            if (this.textBox3.Text.Trim() == "")
            {
                MessageBox.Show("确认密码不能为空!");
                this.textBox3.Focus();
                return;
            }
            if (this.textBox4.Text.Trim() == "")
            {
                MessageBox.Show("真实姓名不能为空!");
                this.textBox4.Focus();
                return;
            }
            if (this.textBox2.Text.Trim() != this.textBox3.Text.Trim())
            {
                MessageBox.Show("两次密码不一致！");
                this.textBox3.Focus();
                return;
            }
            if (this.listBox1.SelectedIndex == -1)
            {
                MessageBox.Show("请选择一个用户！");
                this.listBox1.Focus();
                return;
            }
            string sql = "select * from [user] where name='" + this.textBox1.Text.Trim() + "'";
            DataTable dt = DB.getTable(sql);
            if (dt.Rows.Count != 0)
            {
                MessageBox.Show("考勤人员" + this.textBox1.Text.Trim() + "已存在!");
                return;
            }
            sql = "update [user] set name='" + this.textBox1.Text.Trim() + "',pwd='" + this.textBox2.Text.Trim() + "',realName='" + this.textBox4.Text.Trim() + "' where name='" + this.listBox1.SelectedItem.ToString() + "'";
            if (DB.executeSql(sql))
            {
                MessageBox.Show("操作成功!");
                this.BindData();
            }
            else
            {
                MessageBox.Show("操作失败!");
            }
        }
        private void Del()
        {
            if (this.listBox1.SelectedIndex == -1)
            {
                MessageBox.Show("请选择一个用户!");
                this.listBox1.Focus();
                return;
            }
            string sql = "delete [user] where name='" + this.listBox1.SelectedItem.ToString() + "'";
            if (DB.executeSql(sql))
            {
                MessageBox.Show("操作成功!");
                this.BindData();
            }
            else
            {
                MessageBox.Show("操作失败!");
            }
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.radioButton3.Checked == true || this.radioButton2.Checked == true)
            {
                if (this.listBox1.SelectedIndex == -1)
                {
                    return;
                }
                this.BindText(this.listBox1.SelectedItem.ToString().Trim());
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void kaoqin_person_Load(object sender, EventArgs e)
        {
            this.BindData();
        }
    }
}