winform二维码生成

 

 

首先，再使用程序之前，我们需要在网上，或是NuGet中下载最新的程序集zxing.

准备工作完成以后，接下来开始我们的代码演示

//除原来引用外，要新添加这三个引用

using ZXing;
using ZXing.Common;
using ZXing.QrCode;

namespace QrCode
{
    public partial class Form1 : Form
    {
        EncodingOptions options = null;
        BarcodeWriter writer = null;

 

        public Form1()
        {
            InitializeComponent();

            options = new QrCodeEncodingOptions
            {
                DisableECI = true,
                CharacterSet = "UTF-8",
                Width = pictureBoxQr.Width,
                Height = pictureBoxQr.Height
            };
            writer = new BarcodeWriter();
            writer.Format = BarcodeFormat.QR_CODE;       //QR_CODE二维码编码方式
            writer.Options = options;

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (textBoxText.Text == string.Empty)
            {
                MessageBox.Show("输入内容不能为空！");
                return;
            }
            Bitmap bitmap = writer.Write(textBoxText.Text);
            pictureBoxQr.Image = bitmap;

        }
    }
}

pictureBoxQr为Picture控件

此程序页面中间只有Picturebox textbox 和一个按钮即可完成