C# 生成二维码实例源码(ThoughtWorks.QRCode)

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ThoughtWorks.QRCode.Codec;

namespace EWM
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

          
            if (textBox1.Text.Trim() == string.Empty)
            {
                MessageBox.Show("请输入你要生成二维码的文字！");
            
            }

            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;

            try
            {
                Image image;
                string data = textBox1.Text;
                image = qrCodeEncoder.Encode(data,Encoding.Default);
                pictureBox1.Image = image;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                SaveFileDialog saveFileDialog1 = new SaveFileDialog();
                saveFileDialog1.Filter = "JPeg Image|*.jpg|Bitmap Image|*.bmp|Gif Image|*.gif|PNG Image|*.png";
                saveFileDialog1.Title = "保存";
                saveFileDialog1.FileName = string.Empty;

                if (saveFileDialog1.ShowDialog() != DialogResult.OK)
                    return;
                if (saveFileDialog1.FileName == null)
                    return;
                pictureBox1.Image.Save(saveFileDialog1.FileName);
                MessageBox.Show("保存成功！！");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
    }
}