CS中实现简单的注册验证窗体程序

骑猪看日落 2023-10-18 23:59 120阅读 0赞

## 场景 ##

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

## 实现 ##

打开VS，新建窗体程序

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

快捷键ctrl+alt+x打开工具箱，拖拽label、TextBox、Button，实现注册窗体布局。

在输入框TextBox后面还有对应的提示用的label，将其Text设为空，设置好name属性，将字体颜色设为红色。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2][]

将密码以及确认密码的TextBox的属性--行为--PasswordChar设置为\*

在解决资源管理器窗口下右击项目--添加--类

User实体类

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 3][]

User代码

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    
    namespace RegisterTest
    {
        class User
        {
            private string name;
    
            public string Name
            {
                get { return name; }
                set { name = value; }
            }
    
        
    
            private string pwd;
    
            public string Pwd
            {
                get { return pwd; }
                set { pwd = value; }
            }
    
            private string email;
    
            public string Email
            {
                get { return email; }
                set { email = value; }
            }
    
           
        }
    }

同理添加Validate验证类

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    
    namespace RegisterTest
    {
        class Validate
        {
           ///验证用户名有效性
           ///大于4位 第一个字符为字母 且必须包含数字
            public Boolean CheckName(string name) {
                bool result = false;
                char[] chars = name.ToCharArray();
                if (name.Length >= 4 && Char.IsLetter(chars[0]))
                {
                    foreach (char c in chars)
                    {
                        if(Char.IsDigit(c)){
                            result = true;
                            break;
                        }
                    }
                }
                return result;
            }
    
            ///验证用户密码
            ///大于6位 且两次输入的密码相同
            public Boolean Checkpwd(string pwd1,string pwd2) {
    
                if (pwd1.Length >= 6 && pwd1.Equals(pwd2))
                {
                    return true;
                }
                else {
                    return false;
                }
            }
    
            ///验证Email
            ///必须包含@，在@后面必须包含. 且之间必须有自符
            public Boolean CheckEmail(string email) {
                if (email.IndexOf('@') != -1 && email.IndexOf('.') > email.IndexOf('@'))
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
    
         }
    }

回到页面设计双击注册按钮进入其点击事件的代码编写中

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 RegisterTest
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                Validate validate = new Validate();
                bool result = false;
    
                User user = new User();
                user.Name = this.username.Text.Trim();
                user.Pwd = this.password.Text.Trim();
                user.Email = this.email.Text.Trim();
    
                if (!validate.CheckName(user.Name))
                {
                    this.nameMsg.Text = "* 用户名无效";
                    this.username.Text = "";
                }
                else if(!validate.Checkpwd(user.Pwd,confirmPassword.Text.Trim()))
                {
                    this.nameMsg.Text = "";
                    this.pwdMsg.Text = "* 密码无效";
                    this.password.Text = "";
                    this.confirmPassword.Text = "";
                }
                else if (!validate.CheckEmail(user.Email))
                {
                    this.nameMsg.Text = "";
                    this.pwdMsg.Text = "";
                    //设置提示框的文本
                    this.emailMsg.Text = "* 电子邮件无效";
                    this.email.Text = "";
                }
                else
                {
                    //将输入框后面的提示框设置为空
                    this.nameMsg .Text= "";
                    this.pwdMsg.Text = "";
                    this.emailMsg.Text="";
                    result = true;
                }
    
                if (result)
                {
                    //    \n代表换行  {0} 代表占位符 与后面参数对应
                    string message = string.Format("用户注册成功! \n 用户名：{0} \n密码：{1}",user.Name,user.Pwd);
                    //弹窗提示信息
                    MessageBox.Show(message);
                }
            }
    
            private void button2_Click(object sender, EventArgs e)
            {
                this.Close();
            }
    
            private void Form1_Load(object sender, EventArgs e)
            {
    
            }
        }
    }

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 7][]

### 示例源码下载 ###

[https://download.csdn.net/download/badao\_liumang\_qizhi/11561049][https_download.csdn.net_download_badao_liumang_qizhi_11561049]

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 6]: https://img-blog.csdnimg.cn/20190815171630319.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
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[https_download.csdn.net_download_badao_liumang_qizhi_11561049]: https://download.csdn.net/download/badao_liumang_qizhi/11561049