formregister.cs

来自「csharp课本的源代码」· CS 代码 · 共 46 行

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

namespace RegexExample2
{
    public partial class FormRegister : Form
    {
        public FormRegister()
        {
            InitializeComponent();
        }
        //更改textBoxName.Text属性值触发的事件
        private void textBoxName_TextChanged(object sender, EventArgs e)
        {
            labelName.Visible = !Regex.IsMatch(textBoxName.Text, "^[\u4e00-\u9fa5]{2,}$");
        }
        //更改textBoxAge.Text属性值触发的事件
        private void textBoxAge_TextChanged(object sender, EventArgs e)
        {
            labelAge.Visible = !Regex.IsMatch(textBoxAge.Text, @"^\d{1,3}$");
        }
        //更改textBoxPassword.Text属性值触发的事件
        private void textBoxPassword_TextChanged(object sender, EventArgs e)
        {
            labelPassword.Visible = !Regex.IsMatch(textBoxPassword.Text, @"^\w{5,}$");
        }
        //单击【确定】按钮触发的事件
        private void buttonOK_Click(object sender, EventArgs e)
        {
            if (labelName.Visible || labelAge.Visible || labelPassword.Visible)
            {
                MessageBox.Show("请按要求输入", "", MessageBoxButtons.OK, MessageBoxIcon.Hand);
            }
            else
            {
                MessageBox.Show("注册验证成功", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }
    }
}