form1.cs

正则表达式的验证工具

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 WindowsApplication1
{
    public partial class Form1 : Form
    {
        private EventHandler testall;
        public Form1()
        {
            InitializeComponent();
            testall = testall + textBox2_KeyPress + textBox3_KeyPress + textBox4_KeyPress + textBox5_KeyPress;
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void btnTest_Click(object sender, EventArgs e)
        {
            testall(sender, e);
        }

        private Boolean TestRegex(string sreg, string s)
        {
            if (regMsg.Visible) return false;

            try
            {
                Regex reg = new Regex(sreg);
                return reg.IsMatch(s);
            }
            catch
            {
                return false;
            }

        }

        private void TestRegex(object sender, EventArgs e, CheckBox checkbox, Label label)
        {
            TextBox textbox = (TextBox)sender;
            if (TestRegex(this.textBox1.Text, textbox.Text))
            {
                checkbox.Checked = true;
                label.Text = "通过";
            }
            else
            {
                checkbox.Checked = false;
                label.Text = "不通过";
            }
        }

        private void textBox1_KeyPress(object sender, EventArgs e)
        {
            try
            {
                Regex reg = new Regex(textBox1.Text);
                regMsg.Visible = false;
                testall(sender, e);
            }
            catch
            {
                regMsg.Visible = true;
            }
        }

        private void textBox2_KeyPress(object sender, EventArgs e)
        {
            TestRegex(textBox2, e, checkBox1, label6);
        }

        private void textBox3_KeyPress(object sender, EventArgs e)
        {
            TestRegex(textBox3, e, checkBox2, label7);
        }

        private void textBox4_KeyPress(object sender, EventArgs e)
        {
            TestRegex(textBox4, e, checkBox3, label8);
        }

        private void textBox5_KeyPress(object sender, EventArgs e)
        {
            TestRegex(textBox5, e, checkBox4, label9);
        }

    }
}