When exporting an SVG image to PDF, polylines with stroke-dasharray are rendered incorrectly — the dash pattern is not applied.

Additionally, polylines with a stroke-width exhibit visual artifacts such as pixelation or inconsistent thickness.

Step by step instructions or code snippets how to reproduce the problem

1. Save svg content (see below) as a file c:\test_svg_line_stroke.svg
2. Create an empty report
3. Add a picture box
4. Select a value for the picture box - use file c:\test_svg_line_stroke.svg
5. Go to preview - SVG is correct
6. Click Export->Acrobat (PDF) file and export a PDF file
7. Open PDF file to verify that the red line in a bottob does not have stroke-dasharray applied

If there's no black line with no stroke-dasharray - the red line in a bottom looks correct

test_svg_line_stroke.svg

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xml="http://www.w3.org/XML/1998/namespace" width="500" height="400" viewBox="0, 0, 500, 400" preserveAspectRatio="xMinYMin" transform="scale(1)">
  <polyline points="100, 100 400, 100" stroke-width="7" stroke-dasharray="40 40" style="fill:none;stroke:#FF0000;" />
  <polyline points="100, 200 400, 200" stroke-width="5" style="fill:none;stroke:#000000;" />
  <polyline points="100, 300 400, 300" stroke-width="7" stroke-dasharray="40 40" style="fill:none;stroke:#FF0000;" />
</svg>

test_svg_line_stroke.svg - svg source file 
test_svg_line_stroke.trdp - report with a picture box with SVG image
test_svg_line_stroke.pdf - generated PDF file

Hi,

I'm working on a multiplatform project, using Telerik Reporting to generate PDF reports. The development is taking place on Windows.

The report is loaded programmatically (ReportPackager.Unpackage(...)), and the data is injected directly into the reports.

Some reports requires specific charts that are created as images and inserted into the PictureBox elements of the report before rendering. We are using SkiaSharp to generate these images, and I'm now trying to inject these images into the PictureBox elements.

For my first attempt, I have used the Gdi by first converting the SKImage to a System.Drawing.Image and it worked fine although it does not seem optimal.

Now I'm trying to write directly the SKImage to the PictureBox :

        public bool SetPictureBoxImage(string pictureBoxName, SKImage image)
        {
            PictureBox? pictureBox = (PictureBox?)_telerikReport.Items.Find(pictureBoxName, true).FirstOrDefault();
            if (pictureBox is null) return false;

            DrawingFactory.CurrentGraphicsEngine = GraphicsEngine.Skia;
            using var bitmap = SKBitmap.FromImage(image);
            IImage tlkImage = DrawingFactory.CreateImage(bitmap);
            pictureBox.Value = tlkImage;

            return true;
        }

However, when calling 'ReportProcessor.RenderReport(...)', a 'System.ExecutionEngineException' is thrown (no call stack, no additional details available).

I have tried to move the call 'DrawingFactory.CurrentGraphicsEngine = GraphicsEngine.Skia' before loading the report with no luck.

Is the 'Skia' rendering not available on Windows?

Please note that I cannot rely on the 'appsettings.json' file to configure the graphic engine.

I have tried to set the configuration programmatically through a custom implementation of 'Microsoft.Extensions.Configuration.IConfiguration' passed as an argument to 'ReportProcessor' constructors, but it had no effect. I have searched your code to find another way to set the configuration but it does not seem possible as everything is static and internal.

Kind regards

I have multiline text in a TextBox item that has its Style > TextAlign set to Center.

It is rendered as expected with the GDI+ graphics engine.

When I switch to the Skia graphics engine in the Standalone Designer .NET, though, some lines are not centered correctly in PDF rendering:

In Preview of the designer, with PNG and OpenXML export the text is shown as expected.

Steps To Reproduce:

1. Install Reporting.
2. Go to \Tools folder.
3. Start DatabaseCacheConfigurator.exe
4. Leave the first combobox to 'Create engine viewers/cache database'
5. Paste a valid connection string in the textbox below, e.g. Data Source=.\sqlexpress;Initial Catalog=AdventureWorks;Integrated Security=True
6. Click on Create Schema or Clear Cache Data.

Expected behavior: The function is executed

Actual behavior: A message saying "Operation could destabilize the runtime." is shown.

When the WinForms Report Viewer is initialized from within the Form.Load Event, and the RefreshReport() method of the viewer is invoked before it is added to a parent form, the following exception will be thrown: 

Telerik.ReportViewer.WinForms.Licensing.UiLicensePresenter.ShowWatermark(Action showWatermarkCallback)
   at Telerik.ReportViewer.Common.TelerikLicensePresenterBase.PresentWatermark(Action showWatermarkCallback)
   at Telerik.ReportViewer.WinForms.WinViewer.OnPaint(PaintEventArgs eventArgs)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(HWND hWnd, MessageId msg, WPARAM wparam, LPARAM lpa

I am using the HTML5 Report Viewer and have a multi-page report. When the report is previewed with the default pageMode setting, where pages are continuously scrollen into, the found search results are correctly highlighted.

However, if I use pageMode="SINGLE_PAGE" in the HTML5 Report Viewer initialization code, and I navigate to page 2 or further, the found results are not highlighted.

Hi Telerik team

I'd like to implement customer specific colors based on a report variable or database field.
Currently it looks like the color properties only give us a color picker but does not support using an expression, is this correct?

As for context, I do not know the color in advance and it is used at 100+ different objects.

Same problem with conditional formats

Please let me know how to choose colors based on expressions.
If this is not possible yet, I'd like to request it as a new featur.

Best regards,

I run an ASP.NET Core application that has the functionality to export reports into PDFs in an Azure environment.

There is no way to install additional fonts on Azure so I provide the fonts used in my reports via the "privateFonts" element of the Reporting configuration.

This works for the most part, the font is embedded in the produced PDFs but if I have a textbox with a large text, the text may be cut off when using the Skia engine.

I tested running my application in Docker, I copied the needed fonts in the usr/share/fonts directory of the Docker Linux container, and tried exporting again.

When exporting from Docker, with the fonts installed in the container, the text is not cut off. It seems that there is an issue when the fonts are provided as private fonts.

Hello SupportTeam,

when using privateFonts, the WPF-ReportViewer does not use the correct-FontFile when multiple Font-Files are present in the same folder.

The used Graphics-Engine is GDI.

Example 1:

When putting every File in its own Folder it works as expected.

Example 2:

During debugging, we noticed that in case of WPF, the Directory is passed instead of the Full file Path:

In class: Telerik.Reporting.Processing.Common.FontContainer

Best regards

Alexander Schneider

At the moment it's only possible to have your reports in old-fashioned projects.

It should be possible to add/design reports to SDK-style projects. That should work no matter what target framework is (.NET Core, .NET Standard or .NET Framework).

Having the ability to be able to set properties of the HTML5 report viewer globally would be a nice addition. This functionality already exists for other controls and it would have saved me lots of work when I needed to set a template url to over 50 pages.

Hopefully this gets implemented and saves someone else some of their time and if so, your welcome :)

Add the ability to specify rounded corners for the border of TextBoxes, Pictures, Tables and all other similar controls.