Unplanned
Last Updated: 27 Jun 2025 08:12 by Piotr
Currently, when you press the Generate button, you can't see in the UI that something is actually happening. After some time, the response appears. This can be confusing for the end user.
Unplanned
Last Updated: 26 Jun 2025 08:11 by Malay
I am trying to hide the data sources in the web report designer. I can deny permissions for creating all other data source components, except for the GraphQLDataSource.
Unplanned
Last Updated: 20 Jun 2025 10:40 by ADMIN

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,

Unplanned
Last Updated: 19 Jun 2025 07:43 by ADMIN

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

 

 

In Development
Last Updated: 18 Jun 2025 09:40 by ADMIN
Scheduled for 2025 Q3

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).

Unplanned
Last Updated: 17 Jun 2025 16:30 by ADMIN
Created by: Paul
Comments: 1
Category: Reporting
Type: Feature Request
0

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 :)

Unplanned
Last Updated: 13 Jun 2025 13:46 by Claudio
Created by: Pete
Comments: 10
Category: Reporting
Type: Feature Request
54
Add the ability to specify rounded corners for the border of TextBoxes, Pictures, Tables and all other similar controls.
Unplanned
Last Updated: 12 Jun 2025 12:33 by Miria
Created by: Miria
Comments: 0
Category: Reporting
Type: Feature Request
3
Please add support for the newly released Angular 20 for both of the Angular Report Viewers.
Unplanned
Last Updated: 10 Jun 2025 15:27 by ADMIN
Created by: Christos
Comments: 1
Category: Reporting
Type: Bug Report
0

In version 19.1.25.521, I am updating the report source of the viewer immediately after calling $("#reportViewer1").telerik_ReportViewer. This now results in an error:

TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))

In previous versions, it used to work.

Unplanned
Last Updated: 10 Jun 2025 14:46 by Joshua

I have a main report - "MainReport.trdp" and a report that I use in the detail section of the main report as a subreport twice - "SubReport.trdp".

In "SubReport.trdp", I have a report parameter whose value I use in one of the calculated fields in its data source component.

The calculated field's expression is evaluated based on the report parameter value passed with the SubReport's ReportSource object of the first SubReport item for both subreports.

For example, if I pass the string "A" to the first subreport's parameter and the string "B" to the second, the calculated field in both instances will evaluate based on the first value, in this case -  "A".

The second subreport should evaluate the calculated field based on the value passed to its report parameter, it should not matter if I have the same report rendered as a subreport multiple times and whether a different parameter value is passed to them.

 

Unplanned
Last Updated: 09 Jun 2025 11:58 by James Glinsek

I have created a report parameter that accepts null as a value(AllowNull=True) and have set null as the default value by using the expression =Null on the Value property of the report parameter.

This report parameter also has a data source assigned to it so it has available values. Here is a look at the full setup:

When I call the "getReportParameters()" function on the HTML5 Report Viewer, there is an exception thrown in the console that looks as follows:

telerikReportViewer:1 Error: The available values of parameter Parameter1 do not contain Value property that equals null
    at Ae (telerikReportViewer:1:45529)
    at Object.getReportParameters (telerikReportViewer:1:38265)
    at Object.getReportParameters (telerikReportViewer:1:108469)
    at <anonymous>:1:50

 

Unplanned
Last Updated: 06 Jun 2025 15:50 by ADMIN
Scheduled for 2025 Q3

Currently, when you set SplitWorksheetOnPageBreak to True, the Excel Sheet name is formed from the DocumentName or ReportName and the number of the page.

It would be very helpful if the report authors can manipulate these names with Expressions.

Unplanned
Last Updated: 06 Jun 2025 11:17 by William
Created by: William
Comments: 0
Category: Reporting
Type: Feature Request
0

If you embed an iframe that points to a report viewer on a page, and the page is hosted on a web server on a different origin, the print functionality does not work.

 

Consider implementing a workaround to enable it.

Unplanned
Last Updated: 05 Jun 2025 13:43 by William
I have a report with a textbox that displays a date. The width of the textbox is big enough to fit the date on one line, and it does so with GDI, however, when using Skia graphics engine - part of the text is wrapped on the next line despite there seemingly being enough space to fit the content:



The above image is from testing in HTML5Interactive rendering with Skia on Windows.
Unplanned
Last Updated: 04 Jun 2025 12:57 by Daryl

I am rendering reports locally using the report processor. When I use the RenderReport method after processing MS Office Documents and PDF files with the Spire. Office, it causes the text of the report rendered with Telerik Reporting to get truncated:

using Telerik.Reporting;

Spire.Doc.Document document = new Spire.Doc.Document();

var wordDocPath = "./wordtest.docx";
var pdfFilePath = System.IO.Path.Combine("../../../", "wordtest.pdf");

document.LoadFromFile(wordDocPath);

Spire.Doc.ToPdfParameterList toPdf = new Spire.Doc.ToPdfParameterList();
//toPdf.AutoFitTableLayout = true;
document.SaveToFile(pdfFilePath, toPdf);
document.Close();

var reportProcessor = new Telerik.Reporting.Processing.ReportProcessor();
var reportPackager = new ReportPackager();

string sourceReportFile = "./Static Broken CSU Analysis.trdp"; ;

using (var sourceStream = System.IO.File.OpenRead(sourceReportFile))
{
    var report = (Report)reportPackager.UnpackageDocument(sourceStream);

    var deviceInfo = new System.Collections.Hashtable();

    var reportSource = new InstanceReportSource();

    reportSource.ReportDocument = report;

    Telerik.Reporting.Processing.RenderingResult result = reportProcessor.RenderReport("PDF", reportSource, deviceInfo);


    if (!result.HasErrors)
    {
        string fileName = result.DocumentName + "." + result.Extension;
        string filePath = System.IO.Path.Combine("../../../", fileName);

        using (System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Create))
        {
            fs.Write(result.DocumentBytes, 0, result.DocumentBytes.Length);
        }
    }
}

If I comment out the section that is converting the totally unrelated word file to pdf and run it again, it does not clip.

Unplanned
Last Updated: 03 Jun 2025 10:50 by Broderick
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?
Unplanned
Last Updated: 03 Jun 2025 10:41 by Broderick

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: 03 Jun 2025 08:56 by ADMIN
Created by: Bernd
Comments: 3
Category: Reporting
Type: Feature Request
1

In the Telerik Reporting Designer there are already quite a few Chart Diagrams included but the one that is missing is a Sankey Diagram. This is already integrated in the Charts in KendoReact for example and I would like to request to also add this in Telerik Reporting because I think it would be a great addition and also we would for sure need this.

Thanks,

Regards,

Bernd

Unplanned
Last Updated: 02 Jun 2025 11:32 by ADMIN
Created by: Chris Trina
Comments: 31
Category: Reporting
Type: Feature Request
77
Our clients enter information using the radeditor and in many cases want to embedded tables and graphics into their text.  Using your reporting tool there is no way to print this information.  I know you have suggested using your table and image tools, but that doesn't work when you are dealing with freely formatted text so the existance and location of the tables and images cannot be predicted.
Unplanned
Last Updated: 02 Jun 2025 06:06 by ADMIN
Indeed, the Telerik.Reporting.WebServiceDataSource depends on the following packages, as seen in its nuspec file:
<dependencies>
  <group targetFramework=".NETFramework4.6.2">
    <dependency id="Newtonsoft.Json" version="13.0.1" />
    <dependency id="Telerik.Reporting" version="[19.0.25.313]" />
    <dependency id="Microsoft.Net.Http" version="2.2.29" />
  </group>
  <group targetFramework=".NETStandard2.0">
    <dependency id="Newtonsoft.Json" version="13.0.1" />
    <dependency id="Telerik.Reporting" version="[19.0.25.313]" />
  </group>
</dependencies>

The package "Microsoft.Net.Http" is with the latest available version and depends on:

Microsoft.Bcl (>= 1.1.10)
Microsoft.Bcl.Build (>= 1.0.14)

The package "Microsoft.Bcl" is indeed deprecated.