With package QrCode.Net (Install-Package QrCode.Net) we can generate the matrix data of qrcode content, so I have make a WPF control with the matrix data.
QRCode.xaml
<UserControl x:Class="WpfApp1.QRCode"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:WpfApp1"
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800">
<UserControl.Resources>
<ItemsPanelTemplate x:Key="HorizontalPanel">
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center"/>
</ItemsPanelTemplate>
<DataTemplate x:Key="PointTemplate">
<Rectangle Fill="{Binding Color}" Width="{Binding Size, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UserControl}}" Height="{Binding Size, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=UserControl}}" />
</DataTemplate>
<DataTemplate x:Key="LineTemplate">
<ItemsControl ItemsSource="{Binding}" ItemsPanel="{StaticResource HorizontalPanel}" ItemTemplate="{StaticResource PointTemplate}">
</ItemsControl>
</DataTemplate>
</UserControl.Resources>
<Grid>
<ItemsControl Name="qrcodeControl" HorizontalAlignment="Center" VerticalAlignment="Center"
ItemTemplate="{StaticResource LineTemplate}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel></StackPanel>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</Grid>
QRCode.xaml.cs
using Gma.QrCodeNet.Encoding;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApp1
{
/// <summary>
/// Interaction logic for QRCode.xaml
/// </summary>
public partial class QRCode : UserControl, INotifyPropertyChanged
{
public QRCode()
{
InitializeComponent();
//default point size
this.Size = 3;
qrcodeControl.ItemsSource = QRMatrix;
}
private ObservableCollection<ObservableCollection<QrCodePoint>> qrMatrix = new ObservableCollection<ObservableCollection<QrCodePoint>>();
ObservableCollection<ObservableCollection<QrCodePoint>> QRMatrix
{
get
{
return this.qrMatrix;
}
}
public new static readonly DependencyProperty ContentProperty = DependencyProperty.Register(
"Content",
typeof(string),
typeof(QRCode),
new UIPropertyMetadata((s, e) =>
{
QRCode dp = s as QRCode;
dp.QRMatrix.Clear();
dp.Generate(e.NewValue.ToString()).ForEach(
line =>
{
ObservableCollection<QrCodePoint> linePoints = new ObservableCollection<QrCodePoint>();
dp.qrMatrix.Add(linePoints);
foreach (var point in line)
{
linePoints.Add(point);
}
});
dp.RaisePropertyChanged("Content");
}));
public new string Content
{
get { return (string)GetValue(ContentProperty); }
set { SetValue(ContentProperty, value); }
}
public static readonly DependencyProperty SizeProperty = DependencyProperty.Register(
"Size",
typeof(double),
typeof(QRCode),
new UIPropertyMetadata((s, e) =>
{
QRCode dp = s as QRCode;
dp.RaisePropertyChanged("Size");
}));
public double Size
{
get { return (double)GetValue(SizeProperty); }
set { SetValue(SizeProperty, value); }
}
public List<QrCodePoint[]> Generate(string content)
{
List<QrCodePoint[]> result = new List<QrCodePoint[]>();
QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode;
encoder.TryEncode(content, out qrCode);
for (int i = 0; i < qrCode.Matrix.Height; i++)
{
var line = new QrCodePoint[qrCode.Matrix.Width];
result.Add(line);
for (int j = 0; j < qrCode.Matrix.Width; j++)
{
line[j] = new QrCodePoint() { Color = qrCode.Matrix[i, j] ? Brushes.Black : Brushes.White };
}
}
return result;
}
public event PropertyChangedEventHandler PropertyChanged;
public void RaisePropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
public class QrCodePoint
{
public SolidColorBrush Color { get; set; }
}
}
and the MainWindow to use this WPF control
<Window x:Class="WpfApp1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WpfApp1"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<local:QRCode Grid.Column="1" Size="5" Content="Hello, world!"></local:QRCode>
</Grid>
