When using a report parameter of type string whose value resembles a date format (e.g., "3036-01"), the System.Text.Json serialization logic used by Telerik Reporting incorrectly treats the value as a date instead of a plain string. As a result, the parameter is serialized and displayed as a parsed DateTime value rather than the original text, leading to unexpected outputs such as "3036-01-01T00:00:00.0000000":
In the Report Book’s Edit Parameters dialog, non‑mergeable parameters only show index 0 in the dropdown, even when multiple report instances are present:
Other indexes can be applied only by manually typing the value into the combo box, but this behavior is not intuitive and makes it unclear that parameters can be assigned per instance.
Consider adding support for the `start` attribute of the `ol` element in HtmlTextBox. This would allow us to change the start counting:
in the expression editor i have a html tag like this...
<ol style="list-style-type: lower-roman" start="2">
design view on the expression editor correctly shows the indented list starting with ii (2).
On the main report view and print, it only shows as i (1).
Yet any editing it switches back to ii (2);
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Comment from admin: The HtmlTextBox item does not (yet) support the `start` attribute (please check Styling and Formatting HtmlTextBox). Therefore, the result in the report preview/print is the expected one, while the design view is misleading.
I have created an ellipse shape item and have set its Stretch property to True. Then, I have set the width of the item to be 1.5in, while the height is 1in, which results in a horizontally stretched ellipse on design-time:
However, when I render the report on Linux where the Skia graphics engine is used, the shape is not rendered properly:
When using A4 paper or narrow-edge leading media the Web Viewer prints everything perfectly.
When using a 60mm x 30mm label, therefore "wide-edge" leading media, the web viewer prints the label in landscape, even though the print is in portrait!
Just because the media is "landscape" surely it is the print on the media that determines the orientation?
When using the Windows System Print Dialogue this does not occur, on the using the print from the Web Viewer. This is because the Web Viewer converts it to PDF first to print (I believe). Surely, in the code you can state NOT to rotate, OR rotate it back to the correct orientation for wide edge leading media.
The label design is portrait so all the "print / pdf" code needs to do is to query this and not assume that wide edge leading media automatically prints in landscape.
After updating to the Q1 2026 release of Reporting, I get the following error when passing the value of a DateTime parameter from the main report to a DateTime parameter of a report that I open via the Navigate To Report action:
CSharp.Net10.ReportingRestServiceCorsDemo Error: 0 : Parameter /Date(1771253073461)/ does not match Epoch regex format! CSharp.Net10.ReportingRestServiceCorsDemo Error: 0 : Parameter /Date(1771253073461)/ does not match Epoch regex format!
The issue seems to occur only when directly passing the value of the DateTime report parameter, so as a workaround, I decided to create a new date using the Date() function. For example:
When I invoke a cancellation before the report processing starts, the expected behavior is that the report should really not even begin processing, but it runs to completion.
When I export to XLSX, RTF, and CSV formats, and try to cancel the report a few seconds later, so that cancellation is signaled while report processing is already occurring, it doesn't stop. The expected behavior is that a TaskCanceledException should be raised, and the report processing should stop, but the report runs to completion. In PDF, DOCX, and PPTX, this works as expected.
The HTML5-based report viewers send 404 request to `/sass/fonts/kendo-font-icons.ttf` when font icons are being used:
Description
Even though there is no map wizard for the WRD, it is possible to create a map item and try to set it. However, it is not possible to select an ESRI Shapefile for the spatial data or inspect the already existing one in the report:
Steps To Reproduce
- Use the PopulationDensity report
- Open the ShapeMapSeries:
- The Source type can't be configured:
Expected behavior
Even with no map wizard in the WRD, the map item should be created from scratch, and all properties should be editable.
Actual behavior
The Source Type doesn't show any option for selecting shape files.
The attached report generates different PDF documents when rendered by the Standalone Designer and REST Service, both targeting the .NET Framework 4.6.2:
- The PDFs have different sizes
- When using the 'Read out loud' functionality of the Adobe Reader, the items are read in a different order. The order in the PDF generated by the designer is correct, and the one in the service-generated PDF is wrong.
Hi, our project uses the Telerik Report Service with Asp .NET Core with Keycloak as Session Provider, every time the user tries to use an Report, after some time, he gets Unauthorized error.
To solve this I've implemented a way to specify the login promise (that is called before each request) when starting the HTML5 Report Viewer.
What if it becomes an native feature?
My report has a Text Watermark as part of the PageSettings, and is configured for Accessibility. The report contains a Page Header and Page Footer. In the Page Footer, there are two TextBoxes.
When I generate an accessible PDF with Telerik Reporting and use the Adobe Reader > Read Out Loud functionality, it doesn't read the content of the second TextBox in the Page Footer.
Currently, Telerik Reporting has a dependency on Microsoft.Data.SqlClient version="5.2.2".
This version may cause build failure when restoring packages due to locked package files.
See the following dotnet issue for more information about the problem: dotnet/SqlClient#2464
Some of the Web Report Designer pop-up messages are not localizable. For example, the message about trying to access a report that does not exist on the server:
Related to:
Also affects Telerik.Reporting.Processing and Configuration: Attempt by security transparent method 'Telerik.Reporting.Processing.AssemblyRefManager.LoadAssembliesCore()' to access security critical method 'Telerik.Reporting.Configuration.ReportingConfiguration.get_Current()' failed.
I have a report with an HtmlTextBox item, which contains an ordered list(<ol>). When I export this report to PDF, and inspect the logical tree of the document with a tool like the PDF Accessibility Checker, I can see that the span with the text is inserted above the number.
As a result, when I read the document with a screen-reading tool like Adobe's "Read Out Loud" feature or NVDA, the text is read before the current number in the list, which I find unexpected.
Currently, the GetDesignerResource endpoint of the Web Report Designer service is case-insensitive, which can lead to issues if the URL is made lowercase at some point, such as by a URL rewrite rule, or similar scenarios.
For example, the following reference to the Web Report Designer script will load return the file:
<script src="api/reportdesigner/designerresources/js/webReportDesigner"></script>But if lowercase is used, for example, like this:
<script src="api/reportdesigner/designerresources/js/webreportdesigner"></script>The request will return a 404(Not Found) response.