Unplanned
Last Updated: 24 Nov 2025 14:44 by Rodwan

When my application is hosted on Windows, Arabic date values appear reversed in the day part during PDF export with the Skia graphics engine. For example, 2025/01/01 is displayed as /01/10 when Arabic digits are used.

With the GDI graphics engine, the Date values are rendered as expected.

Unplanned
Last Updated: 24 Nov 2025 14:11 by ADMIN

My use case is a multi-select parameter that is based on a dataset; and the dataset is filtered by 2 other parameters.

The dependent parameter editor is shown as a SpinButton rather than a multi-select editor in the Blazor Native Report Viewer:

Unplanned
Last Updated: 24 Nov 2025 14:11 by ADMIN
I have a string parameter with `autoRefresh` set to `true`. In the report viewer, it displays a textbox as a parameter editor. However, the report viewer refreshes on every "keydown" event, which can be frustrating for users. In the Standalone Report Designer, the report is refreshed only after the textbox is unfocused.
Unplanned
Last Updated: 24 Nov 2025 14:11 by ADMIN
I have cascade parameters that depend on other parameters (check the Product Line Sales report for an example). I have set these parameters with `autoRefresh` of `false`. In the Standalone Report Designer, once I change the value of a parameter, the dependent parameter also changes automatically. However, this is not the case in the Native Angular report viewer.
Unplanned
Last Updated: 24 Nov 2025 14:11 by ADMIN
I have 2 Date parameters on my report. The "Start Date" parameter defaults to today, and the "End Date" defaults to the "Start Date" + 1 Year.

This works fine in the Report Designer, e.g., when the Start Date is changed in preview mode, the End Date value is recalculated.

However, this behavior does not work in the Blazor Native Report Viewer.  When the page first renders, the two dates are shown correctly, but if the Start Date is changed, the End Date is not recalculated.
Unplanned
Last Updated: 24 Nov 2025 09:50 by ADMIN
Scheduled for 2026 Q1

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

 

Unplanned
Last Updated: 24 Nov 2025 09:43 by ADMIN
Scheduled for 2026 Q1

I have a crosstab with a dynamic number of columns (time periods) that can exceed 15-20 columns. When exporting the report to PDF in A4 landscape format, excess columns are truncated and never printed on additional horizontal pages.

The issue is related to the Crosstab property 'RowHeadersPrintOnEveryPage'. When set to True, it places additional row headers on each page when using physical pagination. I suspect these additional headers are not taken into account when calculating the necessary page area, hence the final part of the Crosstab is skipped.

Unplanned
Last Updated: 24 Nov 2025 09:33 by ADMIN
Scheduled for 2026 Q1

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: 21 Nov 2025 17:09 by Mark
The Telerik.Reporting NuGet package brings unnecessary assemblies when used in .NET Framework projects due to the change to the nuspec in the Telerik Reporting - Progress® Telerik® Reporting R2 2022 SP1 (16.1.22.622) release.
Unplanned
Last Updated: 21 Nov 2025 11:55 by ADMIN
Please add the possibility to merge cells in the Web Report Designer
Completed
Last Updated: 20 Nov 2025 08:52 by ADMIN
Release 2025 Q4
Created by: Carsten
Comments: 0
Category: Reporting
Type: Bug Report
1
When using the Skia engine for rendering Image Print (PNG) or simply exporting the report as a PNG, the borders of the elements are not properly shown.
Completed
Last Updated: 20 Nov 2025 08:52 by ADMIN
Release 19.3.25.1119

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

 

Completed
Last Updated: 20 Nov 2025 08:52 by ADMIN
Release 2025 Q4

I try to select the Series Group for my LineSeries directly from the Graph Properties pane in the Standalone Report Designer, but the groups are not listed in the dropdown:

 

I am able to do this from the GraphSeries Collection Editor, though:

 

Completed
Last Updated: 20 Nov 2025 08:52 by ADMIN
Release 2025 Q4

I am currently working on adapting our documents to meet EAA accessibility requirements, and I have upgraded Telerik Reporting to version 19.2.25.813.

I added { "EnableAccessibility", true } to the device information settings when exporting to PDF.

However, when I run the generated PDF through the PAC accessibility checker, it reports the following error:

One or more checks could not be completed.

Please copy the error message and send it by email to pac@axes4.com so that we can improve the product.

PAC (24.4.2.0)

Stacktrace 1:
Not Same Dimension.

   at LiM40lTFOn0eWLuaajvf.A1qp40TFKIn2jBWwxv0d..ctor(Byte[]  , Byte[]  )
   at UmAt0CTVmfKfDqmcrmt6.HLJIPdTVqEyuiUM22OWj.eILTFMl6QDL(Byte[]  , Byte[]  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.ss4TFEoiqAI(geZKyFTFS41IUbuH7c4u  , WdRarplBO5RB6PweG24O&  , HLJIPdTVqEyuiUM22OWj  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.NkpTFX7G98N(Stream  )
   at G3eiSBGKQYDyZb8MKn4.s1GbJnGU5fGAYJDEswn.YUrlmAmFmey(InR8VoTVQP2XaLkCJpHB[]  , String&  )
   at vjQ4yllNOb51ltZ35aif.BbwuGqlNKtxwJLI1h3YW.OnText(RkwmSj3AKXUF7SYMBus  )
   at zSuFuLlooBaWZ1KqkqIR.Xjv9w4loJqr1RoZtRHCI.OHEloDJOVda(Action`1  )
<===========================>

Stacktrace 2:
Not Same Dimension.

   at LiM40lTFOn0eWLuaajvf.A1qp40TFKIn2jBWwxv0d..ctor(Byte[]  , Byte[]  )
   at UmAt0CTVmfKfDqmcrmt6.HLJIPdTVqEyuiUM22OWj.eILTFMl6QDL(Byte[]  , Byte[]  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.ss4TFEoiqAI(geZKyFTFS41IUbuH7c4u  , WdRarplBO5RB6PweG24O&  , HLJIPdTVqEyuiUM22OWj  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.NkpTFX7G98N(Stream  )
   at G3eiSBGKQYDyZb8MKn4.s1GbJnGU5fGAYJDEswn.YUrlmAmFmey(InR8VoTVQP2XaLkCJpHB[]  , String&  )
   at vjQ4yllNOb51ltZ35aif.BbwuGqlNKtxwJLI1h3YW.OnText(RkwmSj3AKXUF7SYMBus  )
   at zSuFuLlooBaWZ1KqkqIR.Xjv9w4loJqr1RoZtRHCI.OHEloDJOVda(Action`1  )
<===========================>

Stacktrace 3:
Not Same Dimension.

   at LiM40lTFOn0eWLuaajvf.A1qp40TFKIn2jBWwxv0d..ctor(Byte[]  , Byte[]  )
   at UmAt0CTVmfKfDqmcrmt6.HLJIPdTVqEyuiUM22OWj.eILTFMl6QDL(Byte[]  , Byte[]  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.ss4TFEoiqAI(geZKyFTFS41IUbuH7c4u  , WdRarplBO5RB6PweG24O&  , HLJIPdTVqEyuiUM22OWj  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.NkpTFX7G98N(Stream  )
   at G3eiSBGKQYDyZb8MKn4.s1GbJnGU5fGAYJDEswn.YUrlmAmFmey(InR8VoTVQP2XaLkCJpHB[]  , String&  )
   at tyAsEn3twQpti0lgIPO.RkwmSj3AKXUF7SYMBus.get_UnicodeText()
   at Xw4lWvlCL4434RXaMsKT.F5WZJylCrhBUjVHuUbsX.OnText(RkwmSj3AKXUF7SYMBus  )
   at zSuFuLlooBaWZ1KqkqIR.Xjv9w4loJqr1RoZtRHCI.OHEloDJOVda(Action`1  )
<===========================>

Stacktrace 4:
Not Same Dimension.

   at LiM40lTFOn0eWLuaajvf.A1qp40TFKIn2jBWwxv0d..ctor(Byte[]  , Byte[]  )
   at UmAt0CTVmfKfDqmcrmt6.HLJIPdTVqEyuiUM22OWj.eILTFMl6QDL(Byte[]  , Byte[]  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.ss4TFEoiqAI(geZKyFTFS41IUbuH7c4u  , WdRarplBO5RB6PweG24O&  , HLJIPdTVqEyuiUM22OWj  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.NkpTFX7G98N(Stream  )
   at G3eiSBGKQYDyZb8MKn4.s1GbJnGU5fGAYJDEswn.YUrlmAmFmey(InR8VoTVQP2XaLkCJpHB[]  , String&  )
   at tyAsEn3twQpti0lgIPO.RkwmSj3AKXUF7SYMBus.get_UnicodeText()
   at ysJjM9lSiQESKK4PGybl.Ew1sjolSWTTCG8Dr2kJW.w3BlSPYBDdu(Os7IcEbiPhfT5JvSVNB  )
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at System.Linq.Enumerable.All[TSource](IEnumerable`1 source, Func`2 predicate)
   at k8l6oaleGgjW6MRKlmWI.IHPaBIlekNuIBbsppXFp.OnStructureElementStart(G23gGNHErJQY3Wrw4QJ  )
   at zSuFuLlooBaWZ1KqkqIR.Xjv9w4loJqr1RoZtRHCI.OHEloDJOVda(Action`1  )
<===========================>

Stacktrace 5:
Not Same Dimension.

   at LiM40lTFOn0eWLuaajvf.A1qp40TFKIn2jBWwxv0d..ctor(Byte[]  , Byte[]  )
   at UmAt0CTVmfKfDqmcrmt6.HLJIPdTVqEyuiUM22OWj.eILTFMl6QDL(Byte[]  , Byte[]  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.ss4TFEoiqAI(geZKyFTFS41IUbuH7c4u  , WdRarplBO5RB6PweG24O&  , HLJIPdTVqEyuiUM22OWj  )
   at Qww7PoTFksraZMkU6m8a.sxUvkLTF4dybUR9VwcRe.NkpTFX7G98N(Stream  )
   at G3eiSBGKQYDyZb8MKn4.s1GbJnGU5fGAYJDEswn.YUrlmAmFmey(InR8VoTVQP2XaLkCJpHB[]  , String&  )
   at tyAsEn3twQpti0lgIPO.RkwmSj3AKXUF7SYMBus.get_UnicodeText()
   at bKc5VfoKOVpfI2iB89a.DBfa8VoUYxTZI0B53G7.get_UnicodeText()
   at q7u9wileh20pIa0tWKql.tdng87le0gdU2UFgOyxR.OnMarkedContentStart(Yeb5V1SeYY62eYUqquq  )
   at zSuFuLlooBaWZ1KqkqIR.Xjv9w4loJqr1RoZtRHCI.OHEloDJOVda(Action`1  )

The problem doesn't occur if I upgrade to an older Reporting version.

 

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: 20 Nov 2025 08:36 by ADMIN
Release 19.3.25.1119
I set the OwnerPassword and UserPassword device settings when exporting to PDF, and when I try to open such a PDF on a Mac with Safari, Preview, etc. the document appears blank after providing the password.
Unplanned
Last Updated: 19 Nov 2025 09:57 by ADMIN

I have projects on .NET Core and I want to use the System.Text.Json serializer that is the new default, but reporting relies on Newtonsoft.Json.

---

ADMIN EDIT

There are two approaches that can be taken right now to solve this:

OPTION 1: define separate endpoints (services, projects) for the different tasks - they can still use the same database layer through a shared project, depending on the architecture you have. This would let you have separated services with the appropriate serializers without custom attributes and code (see below). For example, create a separate project for the reporting REST services.

OPTION 2: add some custom decoration on the endpoints so you can choose which serializer is used on each, you can find some examples here: https://stackoverflow.com/questions/59650907/how-to-configure-two-json-serializers-and-select-the-correct-one-based-on-the-ro - the point being to register a serializer depending on the endpoint based on your own code rather than let the framework put one in for all endpoints.

NOTE: This would be a breaking change.

---

Unplanned
Last Updated: 18 Nov 2025 16:44 by Jonas
Created by: Jonas
Comments: 0
Category: Reporting
Type: Feature Request
1
Consider adding support for a ToC in the XLSX rendering format. Depending on the `SplitWorksheetOnPageBreak` device info setting, I expect the hyperlinks to either lead to a section within the same worksheet or to a different worksheet.
Unplanned
Last Updated: 18 Nov 2025 09:01 by Jonas
The Table of Contents(TOC) section is displayed at the bottom of the document map, despite appearing at the beginning of the rendered report itself. This can be confusing for the end-user.
Completed
Last Updated: 17 Nov 2025 16:37 by ADMIN
Release 2025 Q3

My project uses the following two dependencies:

  • Telerik.UI.for.Blazor (v9.1.0)
  • Telerik.ReportViewer.BlazorNative (v19.1.25.716)

However, when I build my application and navigate to the page of the Native Blazor report viewer, the following error is thrown:

“Telerik.Blazor.Components.TelerikWindow does not have a property matching the name ‘Centered’.” at Microsoft.AspNetCore.Components.Reflection.ComponentProperties.ThrowForUnknownIncomingParameterName(Type targetType, String parameterName) at Microsoft.AspNetCore.Components.Reflection.ComponentProperties.SetProperties(ParameterView& parameters, Object target) at Microsoft.AspNetCore.Components.ParameterView.SetParameterProperties(Object target) at Microsoft.AspNetCore.Components.ComponentBase.SetParametersAsync(ParameterView parameters) at Telerik.Blazor.Components.TelerikWindow.SetParametersAsync(ParameterView parameters) at Microsoft.AspNetCore.Components.Rendering.ComponentState.SupplyCombinedParameters(ParameterView directAndCascadingParameters)

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