C#控件开发

用C#开发一个简易的登录注册窗口
主程序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Login
{
     struct Information
    {
        public String name;
        public String UseName;
        public String password;
        public String time;
        public Char sex;
        public String bent;
    }
    public class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new SignInForm());  
        }
    }
}

登录窗口

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 Login
{
    public partial class SignInForm : Form
    {
        public SignInForm()
        {
            InitializeComponent();
        }

        static String UName, password;

        public SignInForm(String str1,String str2)
        {   //获取用户名密码
            InitializeComponent();
            UName = str1;
            password = str2;
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void Password_TextChanged(object sender, EventArgs e)
        {
            if (!checkBox1.Checked)
            {
                Password.PasswordChar = '*';
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Form f1 = new SignUpForm();
            f1.Show();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if(this.UseName.Text == UName && this.Password.Text == password)
            {
                MessageBox.Show("Hello World!");    //登陆成功
            }
            else
            {
                MessageBox.Show("用户名或密码错误！");
                this.UseName.Clear();
                this.Password.Clear();
                this.UseName.Focus();
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            System.Environment.Exit(0);
        }

        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox1.Checked)
                Password.PasswordChar = new char(); //显示密码
            else
            {
                Password.PasswordChar = '*';
            }
        }
    }
}

注册窗口

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 Login
{
    public partial class SignUpForm : Form
    {
        public SignUpForm()
        {
            InitializeComponent();
        }

        public void SignUp_Load(object sender, EventArgs e)
        {
        }

        private void textBox3_TextChanged(object sender, EventArgs e)
        {
            textBox3.PasswordChar = '*';
        }

        private void textBox4_TextChanged(object sender, EventArgs e)
        {
            textBox4.PasswordChar = '*';
        }

        public void button1_Click(object sender, EventArgs e)
        {
            if (textBox3.Text == textBox4.Text)
            {
                Information information;
                information.name = textBox1.Text;
                information.UseName = textBox2.Text;
                information.password = textBox3.Text;
                information.time = dateTimePicker1.Text;
                if (radioButton1.Checked)
                {
                    information.sex = '男';
                }
                else if (radioButton2.Checked)
                {
                    information.sex = '女';
                }
                information.bent = "";
                foreach (Control c in groupBox2.Controls)
                {   //获取爱好所选选项
                    if (c is CheckBox && ((CheckBox)c).Checked == true)
                    {
                        information.bent += c.Text + "    ";
                    }
                }
                MessageBox.Show("注册成功，请返回登录。");
                //MessageBox.Show("", information.bent);    //测试爱好是否存入
                SignInForm name_password = new SignInForm(information.name,information.password);   //传递用户名密码到登陆窗口
                this.Close();
            }
            else
            {
                MessageBox.Show("两次密码不同！");
                this.textBox4.Focus();
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {   //点击取消清除数据
            this.textBox1.Clear();
            this.textBox2.Clear();
            this.textBox3.Clear();
            this.textBox4.Clear();
            this.textBox1.Focus();
            this.radioButton1.Checked = false;
            this.radioButton2.Checked = false;
            this.checkBox3.Checked = false;
            this.checkBox4.Checked = false;
            this.checkBox5.Checked = false;
            this.checkBox6.Checked = false;
            this.checkBox7.Checked = false;
        }
    }
}