asp.net C#生成和解析二維碼代碼

 　　類庫文件我們在文件最後面下載

　　【ThoughtWorks.QRCode.dll 就是類庫】

　　使用時需要增加:

　　using ThoughtWorks.QRCode.Codec;

　　using ThoughtWorks.QRCode.Codec.Data;

　　using ThoughtWorks.QRCode.Codec.Util;

　　主要源代碼：

　　1.生成二維碼

代碼如下   QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
String encoding = cboEncoding.Text;
if (encoding == "Byte")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
}
else if (encoding == "AlphaNumeric")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
}
else if (encoding == "Numeric")
{
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
}
try
{
int scale = Convert.ToInt16(txtSize.Text);
qrCodeEncoder.QRCodeScale = scale;
}
catch (Exception ex)
{
MessageBox.Show("Invalid size!");
return;
}
try
{
int version = Convert.ToInt16(cboVersion.Text);
qrCodeEncoder.QRCodeVersion = version;
}
catch (Exception ex)
{
MessageBox.Show("Invalid version !");
}

string errorCorrect = cboCorrectionLevel.Text;
if (errorCorrect == "L")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
else if (errorCorrect == "M")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
else if (errorCorrect == "Q")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
else if (errorCorrect == "H")
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
Image image;
String data = txtEncodeData.Text;
image = qrCodeEncoder.Encode(data);
pb_view.Image = image;

　　2.解析二維碼

代碼如下  

QRCodeDecoder decoder = new QRCodeDecoder();
String decodedString = decoder.decode(new QRCodeBitmapImage(new Bitmap(pb_view.Image)));
txtEncodeData.Text = decodedString;