I have tried to install QrCode.net nugget package for an UWP application, but it writes the error for me:
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
are not not exists.
Does anyone know any nugget package for UWP application that helps me to create and show a QR code that generated from a string? (UWP/C#)
Does anyone know any nugget package for UWP application that helps me to create and show a QR code that generated from a string? (UWP/C#)
Since you are developing an UWP app, you can use the Zxing.Net.Mobile
package. After installed this package, to generate a barcode, you can refer to the following example:
<Image x:Name="qrcodeImg" Stretch="None" />
code behind:
protected override void OnNavigatedTo(NavigationEventArgs e)
{
var write = new BarcodeWriter();
write.Format = ZXing.BarcodeFormat.QR_CODE;
var wb = write.Write("BarCode Content");
this.qrcodeImg.Source = wb;
}
This is how you do using the MVVM pattern ( based on Grace Feng's approach )
XAML
<Image Source="{Binding QRImage, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
Viewmodel
// Property
public WriteableBitmap QRImage { get; set; }
// Function to call
private void SetQR()
{
var options = new QrCodeEncodingOptions()
{
DisableECI = true,
CharacterSet = "UTF-8",
Width = 1000,
Height = 1000
};
BarcodeWriter writer = new BarcodeWriter();
writer.Format = BarcodeFormat.QR_CODE;
writer.Options = options;
QRImage= writer.Write(SelectedEvent.GetQrString());
}
Another option is to use QRCoder. Some example setup from the github .
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode("The text which should be encoded.", QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(20);
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