Completed
Last Updated: 14 Nov 2025 11:13 by ADMIN
Release 2025 Q4

I am using the new Coded Reports feature in the Standalone Report Designer for .NET, and I have a class library with reports, that depends on another project.

When I try to load a report from the reports class library, I get an error that the dependent project's assembly cannot be loaded despite being present in the report folder's bin directory.

Unplanned
Last Updated: 03 Oct 2025 13:42 by ADMIN

This is related to Ticket ID 1699907.

Currently, the WinForm report viewer fetches configuration (specifically the connection string for any named connection strings defined in reports) directly from appsettings.json, however, it would be useful if the report viewer could take into account an injected IConfiguration since there are scenarios where the configuration may not exist in appsettings.json or a preferred or more up to date user selected value has been added to the configuration from a different source (such as a userSettings.json or secrets.json).

Some background of my use case:

I have a desktop WinForms application targeting .NET 8.0. It usesTelerik.Reporting 19.2.25.813 and Telerik.ReportViewer.WinForms 19.2.25.813 to display reports.

The reports are TRDX files designed with the 64-bit version of "Report Designer".  The report viewer is being displayed in a dedicated WinForm named FrmReport which configures the reportViewer control to use a UriReportSource pointing to the folder on the user's C:\ drive containing the report files. The reports are designed to use a named connection called ReportsConnection which is configured/saved as a shared connection with Alias ReportsConnection in Report Designer.

The default reports connection string is saved in the appsettings.json file.  Upon application startup users select a database connection from a list of saved/remembered connections and the desktop WinForms application saves the user selected ReportsConnection to a configuration file named userSettings.json.  Both appsettings.json and userSettings.json are configured as sources for IConfiguration with reloadOnChange = true.  After a user selects a database connection and the selected connection string is written to userSettings.json, the configuration is reloaded so that the injected IConfiguration from the service container will have the new, user selected value for ReportsConnection.  At this point, IConfiguration has the updated the named ReportsConnection with the desired connection string, which almost always differs from the default one defined in appsettings.json.

However, when loading the reportViewer, the reports unconditionally connect to the server and database defined in the default connection string from appsettings.json, not the user-selected connection string even though the injected IConfiguration has the updated user selected connection string.
Unplanned
Last Updated: 06 Nov 2025 10:32 by Carl
Currently, the Graph Axes seem to be drawn after the Series, so when they overlap, the corresponding part of the Series lines is not visible.
Completed
Last Updated: 20 Nov 2025 08:52 by ADMIN
Release 19.3.25.1119

When using the Native Blazor report viewer with the latest version of Telerik UI for Blazor (12.0.0), the following exception is thrown:

Unhandled exception rendering component: Object of type 'Telerik.Blazor.Components.TelerikToolBar' does not have a property matching the name 'Adaptive'.

Completed
Last Updated: 21 Jan 2026 13:56 by ADMIN
Release 19.3.26.121

As soon as I reference a .NET 10 assembly containing models, there is a null reference exception that does not appear in EventViewer or Fusion logging at the opening of the Standalone Report Designer for .NET.

Here is a link to a muted video demonstrating how adding assembly references using the UI successfully adds the custom assembly to the designer, as well as the bug when removing the assembly version.

Unplanned
Last Updated: 10 Mar 2026 15:29 by ADMIN
Scheduled for 2026 Q2

I want to set the Table ColumnWidth to a particular value in the Properties of the Web Report Designer. There is no property ColumnWidth as in the Desktop designers, and I tried to set the Size.Width, which is available.

When I increased the Width from the Properties, in design time, there is no change in the column width, only dashed borders indicating the new size when selecting the corresponding TextBoxes. In runtime, though, the new size is respected.

The inconsistency repeats even when I open the saved report in another browser or through another application, hence this is not a caching issue.

Unplanned
Last Updated: 15 Dec 2025 15:41 by Liem

I have noticed that the performance of exporting reports has gotten worse in recent releases. After investigating, I found out that this is likely caused by the sheer size of the code in my projects.

To prove this, I created a simple application that renders a report to PDF programmatically. Then, I created 10 000+ dummy classes in the same project, and tried rendering the report again. The performance was noticeably impacted by this change.

 

Unplanned
Last Updated: 05 Jan 2026 10:02 by ADMIN
Scheduled for 2026 Q1

I had an issue with watermarks being present in the generated PDF despite the license validation passing. In the trace log, I was seeing this:

x.x.x.x.exe Information: 0 : *** ReportProcessor.ProcessReport STARTED ***
x.x.x.x.exe Information: 0 : SQLite x64: v3.50.4
x.x.x.x.exe Information: 0 : 
x.x.x.x.exe Information: 0 : *** ProcessReport #0 "Invoice" STARTED ***
x.x.x.x.exe Information: 0 : *** ProcessReport #0 "Invoice" DONE in 00:00:00.6363067 ***
x.x.x.x.exe Information: 0 : 
x.x.x.x.exe Information: 0 : *** ReportProcessor.ProcessReport DONE in 00:00:00.7891276 ***
x.x.x.x.exe Information: 0 : 
x.x.x.x.exe Information: 0 : License check for assembly Telerik.Reporting, Version=19.3.25.1119, Culture=neutral, PublicKeyToken=a9d7983dfcc261be: True
x.x.x.x.exe Information: 0 : 
x.x.x.x.exe Information: 0 : *** Render Report #0 "Invoice" STARTED ***
x.x.x.x.exe Information: 0 : ReportName: Invoice; DocumentName: Invoice; Extension: PDF
x.x.x.x.exe Information: 0 : DeviceInfo Contents
x.x.x.x.exe Information: 0 : ===================
x.x.x.x.exe Information: 0 : ChangingPermissionType: ""
x.x.x.x.exe Information: 0 : ComplianceLevel: "None"
x.x.x.x.exe Information: 0 : CopyingPermissionType: ""
x.x.x.x.exe Information: 0 : DocumentAuthor: ""
x.x.x.x.exe Information: 0 : DocumentCreator: ""
x.x.x.x.exe Information: 0 : DocumentKeywords: ""
x.x.x.x.exe Information: 0 : DocumentNaturalLanguage: ""
x.x.x.x.exe Information: 0 : DocumentProducer: ""
x.x.x.x.exe Information: 0 : DocumentSubject: ""
x.x.x.x.exe Information: 0 : DocumentTitle: ""
x.x.x.x.exe Information: 0 : EnableAccessibility: "False"
x.x.x.x.exe Information: 0 : EndPage: "0"
x.x.x.x.exe Information: 0 : FontEmbedding: "None"
x.x.x.x.exe Information: 0 : ForceLicenseWatermark: "True"

The issue turned out to be due to caching, but the output puzzled me while I was debugging this. Turned out `ForceLicenseWatermark` is always true (the misleading part), but only has an effect when the license validation fails.

Completed
Last Updated: 08 Jul 2026 13:44 by ADMIN
Release 2026 Q2 (20.1.26.707)

In my Graph, I have set the AccessibleRole and AccessibleDescription. The alternative text is read correctly by the Acrobat Reader's 'Read out Loud' functionality.

The problem is that it keeps reading it multiple times.

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.

Unplanned
Last Updated: 25 Jun 2026 05:46 by Dominik

I have graphs in my report. I render them with Skia on Linux. The issue reproduces with Skia on Windows as well.

The legend labels are not aligned well with the color icon, and data labels on a horizontal bar chart (with OutsideEnd) are misaligned as well:


Declined
Last Updated: 04 Aug 2016 00:20 by Ian
Created by: Timothy
Comments: 2
Category: Reporting
Type: Feature Request
1
We really need improved default controls in the html5 viewer:
 - DatePickers that allow null values (e.g. from From, To date ranges in reports)
 - Dropdown that isn't a list (for when there are large numbers of options e.g. Customer dropdown)
 - I can't go to page 2 on a mobile - there's no next page, previous page button displayed.
- Pinch zoom freezes on mobile (Samsung galaxy s4). See (advertisement) html5 viewer for a nicer zoom controls. in 1 icon that fits on mobile
 
Declined
Last Updated: 31 Jul 2014 12:54 by ADMIN
Telerik Reporting Online Examples have lots of examples of reports, but no examples of how to call these reports!   I'd like to see examples of calling a report from a button on a page, or calling a report by clicking on a button in a radgrid row, and of course passing parameters from said pages or grids.
Completed
Last Updated: 07 Oct 2015 12:15 by ADMIN
Created by: Kevin
Comments: 1
Category: Reporting
Type: Feature Request
1
Add support for the <pre> tag.  This would allow content to be added to the HtmlTextBox without having to worry about encoding it properly.  We use the HtmlTextBox frequently in situations where we want to apply mixed formatting.  

This would help in several scenarios.  One scenario that came up recently was when I wanted to render literal space.  I got around this by replacing every other space with a non-breaking space but the pre tag could have made this much easier.  Other situations involve getting text from the database that could include a < or > symbol which we have also got around making sure we run the text through an HtmlEncode routine.
Declined
Last Updated: 31 Jul 2014 14:22 by ADMIN
Created by: Pierre-Yann
Comments: 1
Category: Reporting
Type: Feature Request
1
The Reporting Graph item support now only one data source, unlike RadChartView.
When displaying different collection, we must for the moment put everything in one collection, and group/filter in Graph, because of this limitation.
Declined
Last Updated: 31 Jul 2014 14:23 by ADMIN
Created by: Pierre-Yann
Comments: 1
Category: Reporting
Type: Feature Request
1
WPF can display very complex text, like mathematical function, or create intricate image.
Such feature is missing in Reporting.
A function should exist in Reporting to render a WPF control as image in report for such case (using RenderTargetBitmap).
Unplanned
Last Updated: 31 Oct 2016 16:02 by Boris
Telerik reporting for asp.net. I suggest to add the "locked" property to the each control that is put on the designer and to whole report likely this done in Crystal Reports from version 7. Sometimes it is hard not touch out suddenly some text box with mouse or keyboard on the designer and not change it size/location.

Thank you very much
Boris
Declined
Last Updated: 31 Oct 2016 16:50 by Chavdar
Hi, I found a bug, my MVC project is in a subfolder, and for this I have a problem with the ways I use "~" in order to specify the full path to take. 
and then I have a problem ReportViewer 

   @ (this.Html.TelerikReporting () 
           . ReportViewer () 
           . Id ("reportViewer1") 
           . ServiceUrl ("/api/reports/") 
           . TemplateUrl ("/templates/template.html") 
           . ReportSource (typeReportSource) 
            . ViewMode (ViewModes.PRINT_PREVIEW) 
           . ScaleMode (ScaleModes.SPECIFIC) 
           . Scale (1.0) 
           . PersistSession (false))

the fact that in this form 
            . ServiceUrl ("/ api / reports /") 
            . TemplateUrl ("/ themplate / themplate.html") 
operating normally. but it turns out that no subfolders. 
because it is taken still relative.
in when the site is in a sub - I get a 404 error. 
ie ReportViewer script takes a relative path. 
and this is a big problem :) 

Once again, my ASP.NET MVC site is in a subfolder of another ASP.NET project.

get something like: 
my site root url: mysite.com/project1 
and pages:
mysite.com/project1/myreportPage 
mysite.com/project1/api/reports 
Declined
Last Updated: 31 Oct 2016 16:21 by ADMIN
Created by: Qin
Comments: 1
Category: Reporting
Type: Feature Request
1
When we have a string parameter, and we set the available values, we would like you to have a extra property to set if we have a blank value in the available list, it seems similar with the allow null properties, but sometimes we don't like the null checkbox, it needs more space and we can not translate it.
Unplanned
Last Updated: 03 Nov 2017 07:17 by Markus
Created by: Markus
Comments: 0
Category: Reporting
Type: Feature Request
1
It would be a great help to have a feature that can copy a whole Column in a crosstab to another one.