In Development
Last Updated: 05 Oct 2026 15:51 by ADMIN
Scheduled for 2026 Q3 (Oct)
The Telerik Reporting installer adds a copy of the legacy ASP.NET WebForms Report Viewer assembly(Telerik.ReportViewer.WebForms.dll) to the Global Assembly Cache (GAC).
Completed
Last Updated: 05 Oct 2026 12:27 by ADMIN
Release 2026 Q3
Created by: Simon
Comments: 0
Category: Reporting
Type: Feature Request
1

The Telerik.Reporting documentation mentions that the Telerik.Reporting.* libraries should be available on nuget.org with the most recent release. However, when I search for Telerik.Reporting in the NuGet Gallery, I am not able to find any Telerik.Reporting.* package. The other products we use (UI for WPF, Document Processing) seem to be available though.

-----------------------------------------

Staff note: On the Reporting side, our initial goal was indeed to make Telerik Reporting available through nuget.org, alongside the rest of the Telerik product portfolio. However, we are currently investigating an issue that is preventing us from publishing the Telerik.Reporting packages to nuget.org, which has delayed their availability.

Please use this feedback item to subscribe to updates and receive a notification as soon as the Telerik.Reporting packages become available on nuget.org.

In Development
Last Updated: 05 Oct 2026 12:18 by ADMIN

When a Table has a Group PageBreak that splits the Table into more than one page, the items below the table are rendered after the first part of the Table (after the first page break), rather than under the whole table.

The issue occurs in hard pagination: PrintPreview of the viewers, PDF, etc.

In Development
Last Updated: 05 Oct 2026 11:06 by ADMIN
Scheduled for 2026 Q3 (Oct)

When I enable accessibility in my reports, the final PDF document becomes 20+ times bigger than without accessibility. The reports contain large amounts of data and result in 2000+ pages.

I need the images in my reports (usually only one logo) to have alternative text, so the screen readers can describe them. To achieve this, currently I have to enable accessibility for the entire report, hence the huge final documents.

It would be very useful for my scenario to add alternative text to the PictureBox without declaring the entire report as accessible.

In Development
Last Updated: 05 Oct 2026 11:06 by ADMIN
Scheduled for 2026 Q3 (Oct)
Telerik Reporting 2026 Q1 (20.0.26.211) fix to 'Paged report layout now supports repeatable table group headers/footers' is not working when embedded table (within a parent embedded table) spills on to the next page. The parent-embedded-table does not repeat in the header.

In Development
Last Updated: 05 Oct 2026 11:05 by ADMIN
Scheduled for 2026 Q3 (Oct)

The attached sample has a simple table with two row groups, and "header" rows created via "Insert Row -> Outside Group - above".
The groups have "keep together" set.

But despite this, the header rows render at the bottom of one page, with data rows on the following page. This should never happen, I can't think of any case it would be expected (it would be like having "Chapter 2" at the bottom of a page when the text for it starts on the next page). 

I also have a sample with just 1 row group, but with 2 detail rows, and the same thing happens. It only appears to work when there's just 1 row group and 1 detail row.

In Development
Last Updated: 05 Oct 2026 11:05 by ADMIN
Scheduled for 2026 Q3 (Oct)

Currently, if I want to see what the device info settings for an extension like the PDF are, I need to open the documentation - Telerik Reporting Configuring the Output Formats PDF Device Information Settings - Telerik Reporting, then copy the setting that I wish to use in my code.

It would be easier and safer if the device information settings for each format were exposed as a public enum/class. On that note, it would also be easier if the available formats were exposed as well, instead of manually typing them. For example:

public static classTelerikDeviceInfoSetting
{
    public static class PDF
    {
        public const string DOCUMENTTITLE = "DocumentTitle";
        public const string DOCUMENTAUTHOR = "DocumentAuthor";
        public const string DOCUMENTSUBJECT = "DocumentSubject";
        public const string DOCUMENTPRODUCER = "DocumentProducer";
        public const string DOCUMENTCREATOR = "DocumentCreator";
    }

    public static class XLSX
    {
        public const string USENATIVEPAGEHEADER = "UseNativePageHeader";
        public const string USENATIVEPAGEFOOTER = "UseNativePageFooter";
        public const string SHOWGRIDLINES = "ShowGridlines";
    }
}

public static class TelerikRenderingExtension

{

public const string PDF = "PDF";

public const string XLSX = "XLSX";

}

Unplanned
Last Updated: 05 Oct 2026 11:05 by ADMIN
Scheduled for 2026 Q3 (Oct)

When I render a report with Gujarati language text to PDF on Windows, the GDI graphics engine is used and the text is displayed properly.

When I render the same report with the Skia graphics engine, on Windows or Linux, the characters are misplaced or incorrectly drawn.

 

Unplanned
Last Updated: 05 Oct 2026 11:05 by ADMIN
Scheduled for 2026 Q3 (Oct)
Created by: Andrew
Comments: 5
Category: Reporting
Type: Feature Request
18

Images taken with a mobile device are sometimes displayed in PictureBox  rotated by 90, 180 or 270 degrees. The reason is that whenever a photo is taken, the device saves its current accelerometer orientation into a corresponding Exif tag with the image metadata, so this info is then read and taken into account by our Report Designer.

In Development
Last Updated: 05 Oct 2026 11:04 by ADMIN
Scheduled for 2026 Q3 (Oct)
Created by: Jacob Overgaard
Comments: 2
Category: Reporting
Type: Feature Request
2

When generating PDF/UA files, we need to have special objects that are read by an internal system but ignored by screen readers. This cannot be achieved with the existing functionality.

It would be beneficial if we could configure reports so that specific objects inside the generated document are ignored by screen readers. For example, by setting a special value to the AccessibleRole property of a text box. 

In Development
Last Updated: 05 Oct 2026 07:57 by ADMIN
Scheduled for 2026 Q3 (Oct)

In the Q3 2026 release, Telerik Reporting updated the kendo font icons used by the web report viewers.  Those icons are loaded alongside the report viewers and are not scoped to them, so they override the icons for elements outside the viewers.

For example, the Telerik UI for AJAX product is currently using kendo font icon subset that is older, so when I load the HTML5/HTML% WebForms report viewer on the page, AJAX's icons are overridden and incorrect.

Migrate the web reports viewers to use Kendo SVG Icons instead of the current font icons implementation, as they allow for better flexibility and render more nicely on the page, and will avoid the issue with overriding font icons when the viewers are used with other Telerik products.

In Development
Last Updated: 02 Oct 2026 11:03 by ADMIN
Scheduled for 2026 Q3 (Oct)
When I configure a CsvDataSource through the wizard, leave "The CSV has headers" unset (generating dummy column names), then navigate back to select a different CSV file with actual headers and tick "The CSV has headers", the dummy columns from the first file persist instead of being replaced with the real headers from the new file.
Duplicated
Last Updated: 30 Sep 2026 10:43 by ADMIN
DOCX export restarts the numbering on the second page for ordered lists.
Completed
Last Updated: 30 Sep 2026 10:38 by ADMIN
Release 2026 Q3

On export to MS Word, a numbered list that spans two pages restarts at (1) on the second page. Instead, the numbered list should continue numbering from the first page. 

For example, if a list has five items and the fourth item starts on a new page, when I export the report to MS Word, the first three items are numbered (1), (2), and (3), and the last two items are numbered (1) and (2) again.  The last two items should be numbered (4) and (5).

In addition, if an item in a numbered list splits between two pages, the item is numbered twice: once at the beginning of the item and again on the first line that appears on the next page. The line at the top of the second page is numbered (1). This second number should not appear.

The attached file shows both these issues.

Unplanned
Last Updated: 29 Sep 2026 12:55 by ADMIN

Currently, the desktop viewers don't allow adding custom headers to their requests to the service.
In HTML5-based web viewers, this is possible through the AjaxPrefilter event.

In Development
Last Updated: 29 Sep 2026 10:44 by ADMIN

The issue is caused by an issue in the SQL DataSource Wizard that doesn't provide the correct Data Provider name. In the wizard on the first page, the Data Provider must be MySql.Data.MySqlClient, but the option is limited only to MySql.Data. Since the engine cannot determine the type of the data provider by that name, it falls back to System.Data.SqlClient and claims that "Port" is not a supported keyword.

The workaround is to avoid using the SQL DataSource wizard and edit the data source properties directly in the properties grid. You can check the attached silent video that demonstrates how to do so.
In Development
Last Updated: 28 Sep 2026 14:43 by ADMIN
Scheduled for 2026 Q3 (Oct)
Created by: Maxim
Comments: 2
Category: Reporting
Type: Bug Report
6
I have a table in the Report Header and when I export to CSV format, the table does not appear in the document.
Completed
Last Updated: 24 Sep 2026 13:40 by ADMIN
Release 2025 Q4

When exporting a report to Excel with the UseExtendedFormatting parameter set to False, the Standard DateTime Format Strings are hard coded as custom formats in the generated XLS/XLSX document.

The custom formats correspond to the current regional settings or, if the report is rendered with a specific culture, the default date format strings for the selected culture.  

Unplanned
Last Updated: 17 Sep 2026 11:12 by Greg
HTML5 Report Viewer: Manually clearing a required ComboBox parameter leaves its old value in place, so a change to another parameter re-enables Preview, and the report runs with the cleared old value.
Unplanned
Last Updated: 17 Sep 2026 11:09 by Narayan

I have an SVG image that includes text, which uses the "Arial" font-family. On Windows, it renders correctly with GDI and SKIA. However, on Linux,  an "Invalid Image Data" exception is thrown, and the image is not rendered. This happens when exporting to PDF and XLSX.

Furthermore, even though there is an exception, it is not caught by the Reporting engine, so RenderingResult.HasErrors returns false. The logic should be modified to catch this error and update the HasErrors flag.

So far, the issue seems to be specific to the Arial font. When I change font-family, the PDF document is created as expected.

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