Duplicated
Last Updated: 10 Nov 2025 17:55 by ADMIN

Hello Support,

In the daily and weekly view from the ScheduleVies, the last appointments of daily appointments that span several days are not displayed.

Our customers often have daily appointments that span several days. When they switch to the daily or weekly view, the last day of these appointments is missing. We are now receiving daily complaints that the daily and weekly views are unusable. Please fix this bug as soon as possible. This error did not exist in the old Telerik library, but unfortunately we cannot reinstall the old library.

Thank you for your efforts.

Greetings marco

Duplicated
Last Updated: 12 Sep 2025 08:57 by ADMIN
The ShowPlaceholder property of Content Control is not handled correctly when importing .docx files.
Duplicated
Last Updated: 12 Sep 2025 08:53 by ADMIN
Created by: Mats
Comments: 3
Category: MultiColumnComboBox
Type: Bug Report
4

Hi Telerik-Team,

 

i found a bug similar to forum post, but not the same.

In MultiColumnComboBox when SelectionBoxesVisibility is set  to 'collapsed' and and whatever you set AutoCompleteMode to (different from the forum post),

if you select the first item it is not shown. Although the NullText is removed. It works perfectly for all the other items. This is quiet a problem if you only have one item in the dropwdown :D

 

Regards,

Mats

Duplicated
Last Updated: 12 Sep 2025 08:52 by ADMIN

RadMaskedNumericInput Maximum value setting is not working with hungarian culture settings.

 

Steps to reproduce:

- Open the attached project, fix the references and start the application

- Click button "English"

- Select the first item from the dropdown

- Inputs are changing to 1433.2 and 1810.9 - OK

- Select the 2nd item from the dropdown

- Inputs are changing to 0 and 59 - OK

- Click button "Hungarian"

- Select the first item from the dropdown

- Inputs are changing to 1433.2 and 1433.2 - NOT OK, Why?


Thanks,

Roberto

 

Duplicated
Last Updated: 14 Jul 2025 11:25 by AF

Dear Support-Team,

We have an issue with a translation on the spreadsheet print preview.

It shows there in the dropdown for the scaling several Netherland translations on a German system.

The text should be like:

1. Blatt für eine Seite anpassen
Den Ausdruck verkleinern, damit er auf eine Seite passt.

2. Alle Spalten passen auf eine Seite
Den Ausdruck verkleinern, so dass er eine Seite breit ist.

3. Alle Zeilen in eine Seite einpassen
Den Ausdruck verkleiner, so dass alle Zeilen auf eine Seite passen

Could there be a fix for this issue?

Kind regards,

Anna

 

Duplicated
Last Updated: 04 Jun 2025 11:54 by ADMIN
Created by: LindenauAtSOG
Comments: 2
Category: PivotGrid
Type: Bug Report
0

In your Demo select PivotGrid - OLAP Support


1. sort rows by "Reseller Order Quantity"
2. reopen sorting panel
-> another option will be selected In the sorting options dialog, the selected column in the sorting options appears to be set to a wrong value upon reopening the dialog.

Duplicated
Last Updated: 03 Mar 2025 13:49 by ADMIN
Created by: Sebastian
Comments: 1
Category: UI for WPF
Type: Bug Report
0

Hello together,

I am experiencing a bug with the following use case:

  1. Import an existing PDF file
  2. Modify the PDF file
  3. Export the PDF file

When upgrading Telerik.Documents.Fixed from version 2024.3.806 to version 2024.4.1106 the exported PDF file is missing different parts of the originally imported PDF file or even results in a complete "messy" file. Input and output files are view with Adobe Acrobat, Google Chrome, Edge...all showing the same result.

Even omitting step 2 (i.e. I only import and directly export the PDF file) results in the same bug after.

I do not use any special import or export setting to reproduce the error. But even with applying different import/export settings I could not change the buggy outcome.

 

var bytes = File.ReadAllBytes(@"C:\temp\in.pdf");
var formatProvider = new PdfFormatProvider();
var document = formatProvider.Import(bytes, TimeSpan.FromSeconds(20));
var outBytes = formatProvider.Export(document, TimeSpan.FromSeconds(20));
File.WriteAllBytes(@"C:\temp\out.pdf", outBytes);

See the attached file for example, import it and export it (via code snippet above).

With version 2024.3.806 everything works fine - and as I am not seeing any relevant breaking changes or other release information regarding this issue, I am a little bit lost with what I could do to solve the issue..

Thanks for your support!

 

Duplicated
Last Updated: 20 Feb 2025 16:01 by ADMIN

Improve the load time when the ribbon UI is used.

 

Duplicated
Last Updated: 13 Jan 2025 11:28 by Maximilian

Hello,

HtmlDataProvider will throw an exception on export or when used by a RadRichTextBox, when using a html containing the length value "NaN", which doesn't seem to be a standard approved value, but nevetheless it is a special case because other invaild values are simply ignored while this one triggers two exceptions - one of which is hard to catch and crashes the whole application.

Code to reproduce:  Console App / .Net Framework 4.8 / Package Telerik.Windows.Documents.FormatProviders.Html.for.Wpf 2022.3.912

using System; using Telerik.Windows.Documents.FormatProviders.Html; using Telerik.Windows.Documents.Model; namespaceHtmlProviderCrash { internalclassProgram { static void Main(string[] args) { var htmlContent = "<img src=\"https://static.cleverpush.com/notification/icon/92fYF7FtKbthsezwS.png?element=Le7adDwC\" " + "alt=\"\" style=\"display: inline-table;max-width: 100%;width: 300px;\" width=\"300\" height=\"NaN\" class=\"cp-element-image light-img\">"; HtmlFormatProvider htmlProvider = new HtmlFormatProvider(); RadDocument document = htmlProvider.Import(htmlContent); try { var export = htmlProvider.Export(document); } catch (Exception ex) { var ka = ex.ToString(); } while (Console.ReadKey().KeyChar != 'x') { } } } }

Message	"MeasureOverride returned NaN: Telerik.Windows.Documents.Layout.ImageLayoutBox"	string

at Telerik.Windows.Documents.Layout.LayoutElement.Measure(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.ParagraphLayoutBox.MeasureCurrentGroupSize(ParagraphLayoutBoxMeasureContext context, SizeF measureSize, Func`1 GetCurrentXDefaultValue, LinkedList`1 currentGroupInlines)
   at Telerik.Windows.Documents.Layout.ParagraphLayoutBox.MeasureOverride(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.Measure(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.SectionLayoutBox.MeasureOverrideInternal(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.SectionLayoutBox.MeasureOverride(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.Measure(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.DocumentLayoutBox.MeasureOverrideInternal(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.DocumentLayoutBox.MeasureOverride(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.MeasureCore(SizeF availableSize)
   at Telerik.Windows.Documents.Layout.LayoutElement.Measure(SizeF availableSize)
   at Telerik.Windows.Documents.Model.RadDocument.Measure(SizeF measureSize)
   at Telerik.Windows.Documents.Model.RadDocument.MeasureAndArrangeInDefaultSize()
   at Telerik.Windows.Documents.Model.RadDocument.EnsureDocumentMeasuredAndArranged()
   at Telerik.Windows.Documents.FormatProviders.Html.Export.HtmlDocumentExporter.Export(RadDocument document, Stream output)
   at Telerik.Windows.Documents.FormatProviders.Html.HtmlFormatProvider.Export(RadDocument document, Stream output)
   at Telerik.Windows.Documents.FormatProviders.Html.HtmlFormatProvider.Export(RadDocument document)
   at HtmlProviderCrash.Program.Main(String[] args)

Message "The image data generated an overflow during processing"

   at System.Windows.Media.Imaging.TransformedBitmap.FinalizeCreation() in System.Windows.Media.Imaging\TransformedBitmap.cs:line 216
   at System.Windows.Media.Imaging.TransformedBitmap.EndInit() in System.Windows.Media.Imaging\TransformedBitmap.cs:line 112
   at System.Windows.Media.Imaging.BitmapImage.FinalizeCreation() in System.Windows.Media.Imaging\BitmapImage.cs:line 505
   at System.Windows.Media.Imaging.BitmapImage.EndInit() in System.Windows.Media.Imaging\BitmapImage.cs:line 319
   at Telerik.Windows.Documents.Model.ImageDocumentElementHelper.CreateImageSourceCore(BitmapCreateOptions createOptions, Byte[] bytes, Size renderingSize, String& extension, Byte[]& resultBytes)
   at Telerik.Windows.Documents.Model.ImageDocumentElementHelper.CreateImageSource(Byte[] bytes, Size imageSize, Size scaleFactor, String& extension, Byte[]& resultBytes)
   at Telerik.Windows.Documents.Model.ImageDocumentElementHelper.InitializeRawImageData(IImageDocumentElement imageElement, Byte[] bytes, Size scaleFactor, String& extension)
   at Telerik.Windows.Documents.Model.ImageDocumentElementHelper.InitInternal(IImageDocumentElement imageElement, Byte[] bytes, Size size, String extension, Boolean isUserInitiated)
   at Telerik.Windows.Documents.Model.ImageInline.InitImageElementFromUriStream(Stream stream)
   at Telerik.Windows.Documents.Model.ImageInline.<SetStreamFromUriSource>b__0(Object s, StreamReadyEventArgs a)
   at Telerik.Windows.Documents.Utils.ResourceStreamLocator.OnStreamReady()
   at Telerik.Windows.Documents.Utils.ResourceStreamLocator.<GetStreamAsync>b__0(Object sender, OpenReadCompletedEventArgs e)
   at System.Net.WebClient.OnOpenReadCompleted(OpenReadCompletedEventArgs e)
   at System.Net.WebClient.OpenReadOperationCompleted(Object arg)
   at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()


 

Duplicated
Last Updated: 08 Jan 2025 13:50 by ADMIN

Hi Telerik-Team,

the 2024.4.X release of UI for WPF seems to no longer render pdf files correctly. It looks like as if the PdfViewer just renders the document as a single huge page.

An application that uses those references:

<PackageReference Include="Telerik.Windows.Controls.for.Wpf.Xaml" Version="2024.3.924" />
<PackageReference Include="Telerik.Windows.Controls.FixedDocumentViewers.for.Wpf.Xaml" Version="2024.3.924" />
<PackageReference Include="Telerik.Windows.Documents.Core" Version="2024.3.806" />
<PackageReference Include="Telerik.Windows.Documents.Fixed" Version="2024.3.806" />
<PackageReference Include="Telerik.Windows.Zip" Version="2024.3.806" />

works as expected. Once you change those to:

<PackageReference Include="Telerik.Windows.Controls.for.Wpf.Xaml" Version="2024.4.1111" />
<PackageReference Include="Telerik.Windows.Controls.FixedDocumentViewers.for.Wpf.Xaml" Version="2024.4.1111" />
<PackageReference Include="Telerik.Windows.Documents.Core" Version="2024.4.106" />
<PackageReference Include="Telerik.Windows.Documents.Fixed" Version="2024.4.106" />
<PackageReference Include="Telerik.Windows.Zip" Version="2024.4.106" />

the renderer stops working.

I have attached a VS solution with a pdf file that reproduces this

Duplicated
Last Updated: 06 Dec 2024 17:33 by ADMIN
ADMIN
Created by: Yoan
Comments: 0
Category: PDFViewer
Type: Bug Report
1
A specific file is not displayed in the viewer.
Duplicated
Last Updated: 27 Nov 2024 16:54 by ADMIN
Created by: Frank
Comments: 1
Category: Docking
Type: Bug Report
0

In a multi monitor scenario with different scalings and an application that is configured to run ‚per monitor dpi awareness‘ a floating toolwindow cannot be docked at all positions.

Example:

Monitor 1: 1920 x 1200 (100%), Monitor 2: 2048 x 2560 (150%)

Our WPF application has a main window, maximized on screen 1 and a child window maximized on screen 2.

In the app.manifest we use per monitor dpi awareness.

Both windows have a RadDocking instance with a docked RadPane. Start the application, undock a tool window and try to dock it at the right position on monitor 1.

è It is not possible since the compass is deactivated before the mouse cursor reaches the right monitor area.

 


Duplicated
Last Updated: 27 Nov 2024 15:39 by ADMIN

After upgrading to .net 9 I get the following error when starting the published program (running it in RIDER in debug-mode doesn't create the issue).


System.TypeInitializationException: The type initializer for 'Telerik.Windows.Input.Touch.TouchManager' threw an exception.
 ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Windows.Forms, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Das System kann die angegebene Datei nicht finden.

 

the mentioned assembly System.Windows.Forms is not used by me at all.

Duplicated
Last Updated: 26 Nov 2024 06:40 by ADMIN
Created by: n/a
Comments: 1
Category: UI for WPF
Type: Bug Report
2

Suddenly with WPF release 2024 Q4 some of pdf-s are not presented correctly. Attached file was produced with Telerik Report Designer and exported as pdf. With previous WPF version was OK.

You can check in your demo application. It is shown in previous release but not with latest.

Please make solution ASAP.

 

Regards
Janez Ovsenik

 

Duplicated
Last Updated: 09 May 2024 08:43 by ADMIN
Hi, this document is displaying the stamps in the wrong place. I am using this tool to load drawings published by Adobe and Autocad. The stamps that are added later do not display properly. Using Windows 10 and Windows 11, also lates Telerik Componets just released. 2024 for WPF. Please see attachment for testing.
Duplicated
Last Updated: 07 May 2024 06:19 by ADMIN
TabControl: The tab items and their content are not disposed correctly due to the RadTabItemAutoamtionPeer.
Duplicated
Last Updated: 29 Mar 2024 15:24 by ADMIN
Created by: LindenauAtSOG
Comments: 1
Category: UI for WPF
Type: Bug Report
0
Using the mouse to select text inside the `PdfViewer` does not correctly select the text, sometimes it even selects the text of the next line.
The visual indicator of the selected area is slightly above the text as you can see in the attached screenshot.


You can find a fully reproducable example in the attachments


Duplicated
Last Updated: 03 Oct 2023 06:27 by ADMIN
When the focus gets in RadRichTextBox, AutomationProperties.Name is not pronounced by screen readers (for example by Windows Narrator).
Duplicated
Last Updated: 11 Jul 2023 14:04 by ADMIN

I have a GridView, with  ClipboardCopyMode set to "Cells, Header" and defined event CopyingCellClipboardContent :

private void RadGridView1_CopyingCellClipboardContent(object sender, GridViewCellClipboardEventArgs e)
{
// _excludedcolumns = columns excluded from copy operation set in logic before
if (_excludedcolumns.Contains(e.Cell.Column))
{
e.Cancel = true;
}
}

Header cells are empty, not skipped like ordinary cells.

Regards
Janez

 

Duplicated
Last Updated: 18 Apr 2023 06:18 by ADMIN
Missing a single character from the digital signature with a specific document.
1 2