Hi,

I'm trying to add a barcode inside a FlowDocumentEditor.

public static ImageInline InsertQRCode(this RadFlowDocumentEditor editor, string code, double width = 96)
{

    // Barcode
    const double imgWidth = 1000;
    var barcode = new RadBarcode
    {
        Width = imgWidth,
        Height = imgWidth,
        Symbology = new QRCode()
        {
            ErrorCorrectionLevel = ErrorCorrectionLevel.H,
            CodeMode = CodeMode.Alphanumeric
        },
        Value = code
    };
    
    barcode.BeginInit();
    barcode.Measure(new Size(imgWidth, imgWidth));
    barcode.Arrange(new Rect(new Size(imgWidth, imgWidth)));
    barcode.UpdateLayout();
    barcode.EndInit();

    using (var stream = new MemoryStream())
    {
        Telerik.Windows.Media.Imaging.ExportExtensions.ExportToImage(barcode, stream, new PngBitmapEncoder());
        stream.Position = 0;

        return editor.InsertImageInline(new Telerik.Windows.Documents.Media.ImageSource(stream, "png"),
            new Size(96, 96));

    }

At barcode.Measure, I've got an NullException. This didn't happen with old RadBarCodeQR component.

Any ideas?

Hello,

we have old code for generate label with barcode Code39

var barcodeBox = new RadBarcode39
{
 Text = "2015-19541",
 RenderChecksum = false,
 ShowChecksum = false,
 ShowText = false,
 Width = 192,
 HorizontalAlignment = HorizontalAlignment.Center,
 VerticalAlignment = VerticalAlignment.Stretch,
 Margin = new Thickness(5, 0, 5, 0),
}; 

and have result https://ibb.co/3hgJHCw

after upgrade to new control with code

var barcodeBox = new RadBarcode
{
 Value = "2015-19541",
 Width = 192,
 HorizontalAlignment = HorizontalAlignment.Center,
 VerticalAlignment = VerticalAlignment.Stretch,
 Margin = new Thickness(5, 0, 5, 0),
 Symbology = new Code39()
 {
  AutoChecksum = false,
  ShowText = false,
  SizingMode = SizingMode.Stretch
 }
};

we have result https://ibb.co/k8hPdLp

Old barcode we can scan, but new barcode we cannot scan

Dear Team,

I wanted to try the Radbarcodereader in WPF. I opened a new project with .Framework 4.7 

and i just pulled out a Radbarcodereader to an empty WPF window.

Simply started the app, and browsed some random images with barcodes, but every time i push the "decode image" i get IndexOutOfRangeException from the control.

All propertises of the control are on default, what do i have to set up to make it work?

I have tried without control, only by code:

    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
        Dim imageSource = img_Camera.Source
        Dim decoder As New BarcodeDecoder()
        decoder.ImageSource = imageSource
        AddHandler decoder.DecodingComplete, AddressOf OnDecodingComplete
        decoder.StartDecoding()
    End Sub
    Private Sub OnDecodingComplete(ByVal sender As Object, ByVal e As DecodingEventArgs)
        Dim decodeResult As String
        If String.IsNullOrEmpty(e.ErrorMessage) Then
            decodeResult = String.Format("Code Type: {0}" & ControlChars.Lf & "Result: {1}", e.CodeType, e.Result)
        Else
            decodeResult = e.ErrorMessage
        End If
        txt_RESULT.Text = decodeResult
    End Sub

At this line:     decoder.StartDecoding()

i also  get the IndexOutOfRangeException 

Please help :)

thanks

Peter B.

I have RadBarcodeQR and I want to keep the white space outside the BarCode the same in all text.

Would appreciate help

<Grid>
        <StackPanel VerticalAlignment="Center">
            <TextBox Text="{Binding QrCode, UpdateSourceTrigger=PropertyChanged}" Width="300" Height="30" Margin="20"/>
            <telerik:RadBarcodeQR
                Height="100" 
                Width="100"
                Text="{Binding QrCode, UpdateSourceTrigger=PropertyChanged}"
                Foreground="Black"
                UseLayoutRounding="True">
                <telerik:RadBarcodeQR.Style>
                    <Style TargetType="telerik:RadBarcodeQR">
                        <Setter Property="Template">
                            <Setter.Value>
                                <ControlTemplate TargetType="telerik:RadBarcodeQR">
                                    <Grid 
                                        x:Name="PART_RadBarcodeQR" 
                                        Background="White" 
                                        Margin="15">
                                        <Image x:Name="ImageQrCode" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                    </Grid>
                                </ControlTemplate>
                            </Setter.Value>
                        </Setter>
                    </Style>
                </telerik:RadBarcodeQR.Style>
            </telerik:RadBarcodeQR>
        </StackPanel>
    </Grid>

This is what it looks like with an empty string:

This is what it looks like with the string: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaa"

Hi,

Is there a way I can insert text in Hebrew and scan it?

Because by default I see that it only supports English.

Thanks.

Hi,

I would be happy if you could help me how to download RadBarcodeQR as an image?

Thanks.

Hi,

I was trying to add a qr into a RadFixedDocument like this

I have the following error on this line: Telerik.Windows.Media.Imaging.ExportExtensions.ExportToImage(qr, stream, new PngBitmapEncoder());

Hello,

My project is in WPF MVVM with C# on visual studio 2013

I have implemented a RadBarCodeQR on my xaml page but it's not displayed in my design view

When I run the project this is the same, the QR Code is not displayed

Here is my xaml code:

Thank you !