Unplanned
Last Updated: 22 Apr 2026 15:42 by Winnie
Created by: Winnie
Comments: 0
Category: Reporting
Type: Bug Report
1
I am trying to use the line chart wizard; however, after selecting the data source, it seems to silently fail, as it does not display any fields, the "Next >" button is disabled, and no errors are displayed.
In Development
Last Updated: 22 Apr 2026 11:59 by ADMIN
I’m working on a project that requires generating Section 508-compliant PDFs, and I’m using Telerik Reporting to build the accessible reports. However, I’ve run into a problem with how screen readers—specifically NVDA—are interpreting table content.
As soon as I set an AccessibleDescription on a cell (especially the first cell in a row), NVDA stops reading the rest of the row. It seems like the table reading order is broken, and the screen reader exits the table structure or skips over the remaining cells to go to the next row.
This is obviously a problem for users relying on screen readers, and I’m not sure how to fix it. Has anyone else dealt with this in Telerik Reporting, or know a workaround to make screen readers read both the custom alt text and maintain proper row navigation?
In Development
Last Updated: 22 Apr 2026 11:59 by ADMIN

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.

In Development
Last Updated: 22 Apr 2026 11:58 by ADMIN

I’m working on a project that requires generating Section 508-compliant PDFs, and I’m using Telerik Reporting to build the accessible reports. However, I’ve run into a problem with how screen readers—specifically NVDA—are interpreting table content.

In my report’s table, some values like 12/01/2023 aren’t being read as dates, and values like (192,340.00)—which represent negative numbers—aren’t being interpreted as “negative” or addressing the parenthesis.

Unplanned
Last Updated: 22 Apr 2026 10:25 by Licensing
I am using the AI-powered insights functionality of Telerik Reporting. However, RAG optimizations are never being applied, even though I explicitly set `allowRAG`. Based on the network traffic, I noticed that the LLM model I use returns **TRUE** or **FALSE** as a response to the internal prompt that determines whether the user prompt is RAG-worthy or RAG-unworthy.
Completed
Last Updated: 21 Apr 2026 13:41 by ADMIN
Release 20.0.26.402
Created by: Malay
Comments: 0
Category: Reporting
Type: Feature Request
1
I am working with a static report (not using tables or groups), and I need to set the Level / TOC Level under the Interactivity section for an HTMLTextBox.
However, in my report, the Interactivity options do not show any property for Level. I am only seeing basic properties like Action, BookmarkId, DocumentMapText, TocText, etc.
The Level field is completely missing.
Unplanned
Last Updated: 17 Apr 2026 06:48 by Haiko

React Report Viewer throws error ts(7016) on importing it in a TypeScript project:

Could not find a declaration file for module '@progress/telerik-react-report-viewer/dist/cjs/main'. 'C:/Users/dnikolov/Desktop/ReactTypesScript/my-app/node_modules/@progress/telerik-react-report-viewer/dist/cjs/main.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/progress__telerik-react-report-viewer` if it exists or add a new declaration (.d.ts) file containing `declare module '@progress/telerik-react-report-viewer/dist/cjs/main';`

Unplanned
Last Updated: 16 Apr 2026 13:30 by ADMIN

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.

 

In Development
Last Updated: 15 Apr 2026 14:09 by ADMIN
Scheduled for 2026 Q2 (May)
When exporting a report to PDF with EnableAccessibility=True, PAC reports multiple "Invalid use of a 'TD' structure element" errors. The report has a List that contains SubReport items, and each subreport has its own Tables. The generated PDF structure tree places orphan /TD elements directly under /Sect instead of under /TR.
Planned
Last Updated: 14 Apr 2026 13:28 by ADMIN
Scheduled for 2026 Q2

When an HtmlTextBox contains a large HTML ordered list that exceeds a single page height, the generated PDF is cut at the pixel-level page boundary rather than at a text line boundary. This results in a line of text being visually split mid-glyph — part of the line appears at the bottom of one page, and the remainder is orphaned at the top of the next page.

To reproduce, create an HtmlTextBox that contains an <ol> with lots (>40) <li> items, so they span more than one physical page and export to PDF. Observe the page boundary where the list crosses a page — the split occurs mid-line.

Expected behaviour:
The renderer splits the HtmlTextBox content at a complete line boundary, consistent with how a plain TextBox behaves.

Actual behaviour:
The split occurs at the pixel-level page margin, cutting through a rendered text line.

  
In Development
Last Updated: 07 Apr 2026 07:48 by ADMIN
Scheduled for 2026 Q2 (May)
Created by: David
Comments: 0
Category: Reporting
Type: Feature Request
1

The rendering extensions are currently loaded by the Telerik.Reporting.Processing.RenderingExtensionManager all at once in the main thread when the report processing starts. This is redundant because one report processing requires one rendering extension to be loaded.

Unplanned
Last Updated: 06 Apr 2026 13:23 by Vahidreza
Created by: Vahidreza
Comments: 0
Category: Reporting
Type: Feature Request
1

Currently, logarithmic axes do not support the LabelStep and MajorStep properties, which makes it difficult to control label density and avoid visual clutter for larger data ranges.

Adding support for these settings (similar to numerical scales), or providing a way to conditionally hide axis labels, would significantly improve readability and axis customization.

Unplanned
Last Updated: 03 Apr 2026 08:15 by Khaled Salman

I have a Telerik report designed in the Standalone Report Designer. In the HTML5 Report Viewer, the report seems to be correct, but when I export the report in PDF, the word order changes.

The problem occurs in the HTMLTextBox when rendering in PDF and previewing in the Standalone Designer with both Skia and GDI+.

In the TextBox, the same text is displayed as expected.

When previewing in the HTML Report Viewer, the Arabic text seems fine.

Completed
Last Updated: 03 Apr 2026 07:38 by ADMIN
Release 20.0.26.402

I am using the ObjectDataSource component of the Standalone Report Designer. However, I get errors mentioning that types from `System.Private.CoreLib` cannot be loaded. This used to work in version 19.3.26.121. The workaround in the latest version is to manually register the `System.Private.CoreLib` assembly in the designer through `assemblyReferences` (File -> Options -> Add).

Completed
Last Updated: 03 Apr 2026 07:36 by ADMIN
Release 20.0.26.402
Created by: Petar
Comments: 0
Category: Reporting
Type: Feature Request
1
Currently, when configuring an ObjectDataSource with an async method that returns a `Task<T>`, the ObjectDataSource wizard displays `Task` members (such as `AsyncState`, `CreationOptions`, `IsCanceled`, etc.) instead of the actual data properties. Consider adding support for such async methods.
Completed
Last Updated: 03 Apr 2026 07:36 by ADMIN
Release 20.0.26.402
Created by: Tony
Comments: 0
Category: Reporting
Type: Feature Request
1

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.

 

Completed
Last Updated: 03 Apr 2026 07:35 by ADMIN
Release 20.0.26.402

Using the text-indent CSS setting results in part of the text on the first line being cut off:

 

Completed
Last Updated: 03 Apr 2026 07:34 by ADMIN
Release 20.0.26.402

I cannot localize the messages of the Angular and React report viewers using the suggested approaches:

The only alternative is to use the approach from the Localization of the HTML5 ReportViewer Explained - Telerik Reporting article, which I can do only by loading the string resources script in index.html of the SPA.

Completed
Last Updated: 03 Apr 2026 07:31 by ADMIN
Release 20.0.26.402

If I try to drag & drop fields in the Standalone Report Designer for .NET, it does not allow me to paste the field, and the icon changes, indicating that the action is not allowed.

On the other hand, I can drag & drop the fields as expected when using the Standalone Report Designer for .NET Framework.

In Development
Last Updated: 03 Apr 2026 07:22 by ADMIN
When I export a report to MS Word that includes a bullet list and one of the items in the list spans two pages, the item gets two bullets in MS Word: one on the first line of the bullet, which is correct, and on the first line of the bullet that appears on the next page. This second bullet should not appear. The attached screen shot shows what I mean.
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