Unplanned
Last Updated: 02 Sep 2025 10:30 by ADMIN
Scheduled for 2025 Q4

I am running the designer with the flag --roll-forward LatestMajor still getting an error in wizard when we try and open cs report

 

"Ensure that restore has run and that you have included 'net8.0' in the TargetFrameworks for your project."

Unplanned
Last Updated: 29 Aug 2025 13:05 by ADMIN
Created by: Dominik
Comments: 2
Category: Reporting
Type: Feature Request
1

We'd like to have a settable property on the web designer and report viewer which takes a function which returns an access token.
This way a new access token can be requested by the designer/viewer when the current one expires.

This is usually used in the following way:

  1. Implement a function with signature "string GetAccessToken()"
  2. Set that function to the property AccessTokenProvider of the designer/viewer
  3. Designer/Viewer wants to make a request and fetches and caches the access token
  4. Designer/Viewer uses that access token until it hits a 401 upon which
    1. The Cached access token is cleared
    2. A new Access token is fetched from AccessTokenProvider and then cached
    3. Retry the request with the new access token
    4. Should the retry also fail return the failure

Should the above be to specific/inflexible:
Instead of caching the access token, call AccessTokenProvider for every fetch but also provide an additional parameter with the "reason" for the call, so the implementer of AccessTokenProvider can decide themselves when to return a cached AccessToken or generate a new one.


Unplanned
Last Updated: 29 Aug 2025 07:24 by ADMIN
Scheduled for 2025 Q4
I am using the TypeValidator class' method to dynamically allow assemblies/types to be used by the reporting engine, but it does not work in the context of a custom IReportSourceResolver(Reporting REST Service).
Unplanned
Last Updated: 25 Aug 2025 07:11 by Flavio

I use the kendovalidator before rendering the report to check the correct parameter of initial and final date.

 

However, the validation fails because additional inputs (for the "Send Email" functionality) are included in the HTML output of the viewer even though I have disabled it.

 

I believe that if the "Send Email" option is disabled the mail data panel should not be created.

Unplanned
Last Updated: 20 Aug 2025 12:38 by Shaik

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.

Unplanned
Last Updated: 19 Aug 2025 11:12 by Hannu

Currently, the VS item templates, and the documentation suggest using app.UseEndpoints for route registration in ASP.NET Core.

It would be better to use top-level route registrations like app.MapControllers() and app.MapControllerRoute() directly.

Unplanned
Last Updated: 13 Aug 2025 17:29 by Daniel

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.

Need More Info
Last Updated: 13 Aug 2025 09:28 by ADMIN

 

this type filteration controllers not displaying in report (version - 18.0.24.130)

Unplanned
Last Updated: 08 Aug 2025 10:52 by ADMIN

While customising templates/CSS, I noticed the .trv-parameters-wrapper div as follows:

<div tabindex="300" class="trv-parameters-wrapper" aria-label="Parameters area. Contains 4 parameters.">
<div class="trv-parameter-container k-card"></div>
</div>
The report being tested had 1 visible and 3 invisible parameters and one .trv-parameter-container is rendered. Counting 4 being contained in the "Parameters area" does not appear to be too helpful.
Unplanned
Last Updated: 05 Aug 2025 19:48 by ADMIN
Created by: Frank
Comments: 1
Category: Reporting
Type: Feature Request
0

Hi Team,

Currently, the DatabaseCacheConfigurator.exe tool seems to be Windows-only. Can you please compile this to be cross platform compatible? I am on macOS and cannot use any Windows tooling.

Thank you,

Frank

Unplanned
Last Updated: 01 Aug 2025 08:11 by Peter

If I set the ReportSource to the Native Blazor Report Viewer using @bind directive, for example:

@bind-ReportSource="@ReportSource"
It works as expected. However, if I try to do it without a binding, for example:

ReportSource="@(new ReportSourceOptions { ... })"

It causes the viewer to go into a loop of trying to set the ReportSource, and it never renders the report.

Unplanned
Last Updated: 30 Jul 2025 08:49 by ADMIN

Hi Team,

I have a request for being able to add the `User-Agent` header to reporting calls. We've ran into some image hosting sites that will not resolve image links properly if the user-agent is not present in the request and returns a 403 Forbidden error. Any browser that passes the user-agent parameter can resolve this link.

https://cms5.revize.com/revize/cityofwillmar/_assets_/images/logo.png

But telerik will return this error:

Telerik.ReportDesigner.exe Error: 0 : An exception has occurred while processing 'pictureBox1' item:
System.Net.WebException: The remote server returned an error: (403) Forbidden.
   at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
   at System.Net.WebClient.DownloadData(Uri address)
   at Telerik.Reporting.Processing.Imaging.ImageUtils.LoadData(String filePath)
   at Telerik.Reporting.Processing.Imaging.UrlImageItem.CreateUnderlyingImageItem()
   at Telerik.Reporting.Processing.Imaging.UrlImageItem.get_UnderlyingImageItem()
   at Telerik.Reporting.Processing.Imaging.UrlImageItem.CreateImageInfo()
   at Telerik.Reporting.Processing.Imaging.IImageInfoMapExtensions.StoreImageData(IImageInfoMap imageInfoMap, IImageItem imageItem, ICache cache)
   at Telerik.Reporting.Processing.PictureBox.ResolveImage(Object value)
   at Telerik.Reporting.Processing.ReportItemBase.ProcessElement()
   at Telerik.Reporting.Processing.ProcessingElement.Process(IDataMember dataContext)

Currently, the only way around this is to fetch the images with a custom user function and returns the images to the Reporting Engine as a byte array or other supported format. It's a lot of overhead for something that could simply be toggled on an off, so I think this would be a nice feature addition. 

Thanks,
J.T.

Under Review
Last Updated: 30 Jul 2025 08:20 by ADMIN

Hi Telerik Team,

We are experiencing an issue related to tooltips in PDF exports from Telerik Reporting.
When we enable tooltips using the ViewerRenderToolTips setting both at the report level and through the device info in the report service, tooltips are appearing in the exported PDF—but they are being rendered as text annotations, not as normal tooltips.

Issue:
In the resulting PDF, tooltips are rendered as Text Annotations, which:

1.Appear as popups or sticky notes on mouse hover/click
2.Are not the standard tooltip experience expected by users
3.May affect accessibility compliance and user readability

Expected Behavior:
Tooltips should appear as standard PDF tooltips (like browser-style hover text) instead of annotations.

Attachments:
Sample Telerik Report (.trdp)
Generated PDF output showing the issue

Please advise if this is expected behavior or a bug, and whether there's a way to control the tooltip rendering to match typical PDF tooltip behavior (or to make them more accessible).

Thanks,
Pramod
Declined
Last Updated: 23 Jul 2025 15:36 by ADMIN

Greetings,

Telerik.Reporting version: 19.1.25.521

ASP.NET Web Forms

Our team recently had a some trouble understanding the behavior of the ReportViewer.ParametersArea and the property "ParametersAreaVisible". Our desire was to hide this to the end user because the ParametersArea should not be fiddled with directly by the our end users; sensitive data could be accessed. Setting this to false does not stop the render of the ParametersArea. Typically setting the property on a control in ASP.NET Web Forms means the control will not render to the page. So having a property named "ParametersAreaVisible" is misleading in my opinion. I know the ParametersArea is thought as a benefit to the end user but in our case we do not desire this.

My feature request is to add a new property "DisableParameterArea" to the ReportViewer that causes the ParametersArea to not render to the ReportViewer.

 

Thank you

Unplanned
Last Updated: 23 Jul 2025 15:15 by ADMIN
Scheduled for 2025 Q3

White space appears between different rows. Depending on the zoom level it could happen on one or more rows.

I will attach a report example to this message.

In Development
Last Updated: 23 Jul 2025 15:13 by ADMIN
Scheduled for 2025 Q3

The Web Report Designer does not entirely comply with CSP standards, necessitating the use of the 'unsafe-eval' directive in our CSP policies to enable its functionality.

This directive poses significant security risks and undermines the purpose of implementing CSP in the first place. Please remove this requirement.

In Development
Last Updated: 23 Jul 2025 14:50 by ADMIN
Scheduled for 2025 Q3
Created by: Scott Waye
Comments: 12
Category: Reporting
Type: Feature Request
34
In the standalone designer, it would be helpful if you could drag and drop the column headers to reorder.  At present you have to add a new column and delete the old one, remembering to copy all properties.
Unplanned
Last Updated: 22 Jul 2025 14:26 by ADMIN
Created by: Lorenzo
Comments: 1
Category: Reporting
Type: Feature Request
1

Actually Axis title can move only on his specific axis.

For example, x-axis title can move left to right and y-axis title can move up to down.

But in same cases, like mine, where the axis are not on the edge of the chart (because it involves negative x and y values and the intersection is in the middle of the field) it is necessary to move the x-axis title up and down to be next to the x-axis position, or to move y-axis left/right to be next to the y-axis position.

Feature request: allow axis titles to be moved on both axis and not only one.

In attach you'll find a screen that shows the desired result.

Best regards

Unplanned
Last Updated: 18 Jul 2025 16:12 by Asmerom

I am using the NPM package rxjs@6.6.7 together with @progress/telerik-angular-native-report-viewer26.25.521. The latter has the following peer dependency listed in its `package.json`:

"rxjs": "^6.5.3 || ^7.4.0"

Version 6.6.7 is within this range, but when running the application, I get errors, such as:

Error: export 'take' (imported as 'take') was not found in 'rxjs

Completed
Last Updated: 17 Jul 2025 07:51 by ADMIN
Release 2025 Q3
The approach explained in Custom Parameter Editors in the HTML5 Report Viewer is no longer working in Reporting version 2025 Q2 (19.1.25.521).