Unplanned
Last Updated: 13 Dec 2024 11:18 by Deepak Subhedar
Created by: Deepak Subhedar
Comments: 0
Category: WordsProcessing
Type: Feature Request
0
TxtFormatProvider: Expose Encoding settings.
Declined
Last Updated: 04 Aug 2025 14:01 by ADMIN
NetFramework: HtmlFormatProvider: VerificationException is thrown when importing specific HTML document.
Unplanned
Last Updated: 21 Jan 2025 16:20 by ADMIN

Getting an exception message when trying to view a document as a PDF using the PdfFormatProvider which started happening only after upgrading Telerik to the latest version, 7.1.0 in Telerik UI for Blazor.

Exception Message:

width should be greater or equal than 0. (Parameter 'width')

I have copied the stack trace and source of the exception below:

 

Source: Telerik.Documents.Fixed

Stack Trace:    at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.DrawHighlights(DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Layout.ContentElementLayoutElementBase`1.Draw(DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Draw(IEnumerable`1 lineElements, DrawLayoutElementContext context)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.DrawInternal(FixedContentEditor editor, Rect boundingRect)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Block.Telerik.Windows.Documents.Fixed.Model.Editing.Flow.IDrawArrangedElement.DrawArrangedElement(FixedContentEditor editor, Rect boundingRect)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Flow.SectionInfo.DrawArrangedElement(IBlockElement blockElement, Double horizontalOffset, Double verticalOffset)
   at Telerik.Windows.Documents.Fixed.Model.Editing.Utils.SectionInfoExtensions.DrawArrangedElements(SectionInfo section, IList`1 elements)
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.Draw()
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage(SectionProperties sectionProperties)
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.StartNewPage()
   at Telerik.Windows.Documents.Fixed.Model.Editing.RadFixedDocumentEditor.AddBlock(IBlockElement blockElement, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportSection(Section section, RadFixedDocumentEditor editor)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportDocument(RadFlowDocument document, RadFixedDocumentEditor editor)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.ExportInternal()
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.Export.PdfExporter.Export()
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportToFixedDocument(RadFlowDocument document, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output, CancellationToken cancellationToken)
   at Telerik.Windows.Documents.Flow.FormatProviders.Pdf.PdfFormatProvider.ExportOverride(RadFlowDocument document, Stream output)
   at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Export(T document, Stream output)
   at Telerik.Windows.Documents.Common.FormatProviders.BinaryFormatProviderBase`1.Export(T document)

Completed
Last Updated: 22 May 2025 13:36 by ADMIN
Release 2025.2.520 (2025 Q2)
NullReferenceException is thrown when importing a specific document with Track Changes.
Duplicated
Last Updated: 21 Mar 2025 10:50 by ADMIN
Created by: Sri
Comments: 1
Category: WordsProcessing
Type: Bug Report
0

Hi, we are facing the below error when trying to convert a Docx file type to PDF type using RadFlowDocument in C# (.NET core 6.0). Please can you help with this issue as soon as possible?

Error message: "Negative height, if converting in Net Standard try registering a smaller font (Parameter 'height: -17.908799999999985')"

 

C# code snippet for reference:

  BinaryFormatProviderBase<RadFlowDocument> provider;
  RadFlowDocument document;

  using (var output = new MemoryStream())
  {
      provider.Export(document, output)

  }

Unplanned
Last Updated: 29 Apr 2025 10:39 by Kruparao

Multiple CSS classes on an element are not correctly resolved when converted to inline styles.

Before:

.TelerikNormal {font-family: Calibri;font-size: 14.6666666666667px;margin-top: 0px;margin-bottom: 0px;line-height: 100%;color: #000000;}
.TelerikHeading3 {font-family: Calibri Light;font-size: 22.6666666666667px;}
<p class="TelerikNormal TelerikHeading3"><span>Test</span></p>

Due to order priority, the TelerikHeading3 values override the TelerikNormal values. The font-size becomes 22.6666666666667px.

Convert:

provider.ExportSettings.StylesExportMode = StylesExportMode.Inline;
After:
<p style="font-family: Calibri;font-size: 14.6666666666667px;margin-top: 0px;margin-bottom: 0px;line-height: 100%;color: #000000;"><span>Test</span></p>
ResultTelerikHeading3 and its properties are ignored and not applied during the conversion to inline styles. The font-size is now 14.6666666666667px.

 

Unplanned
Last Updated: 30 Apr 2025 13:24 by Sujanphanikumar

PdfFormatProvider: Add support for the "Automatically resize to fit contents" table property.

In Development
Last Updated: 20 Oct 2025 12:58 by ADMIN

Import a document that contains a picture content control and the following error occurs: 

Telerik.Windows.Documents.Flow.Model.Annotations.StructuredDocumentTags.Builders.SdtBuilderFailureException: 'Picture control cannot be used in selection that contains any non-image content, or more than a single image.'

Completed
Last Updated: 15 Aug 2025 13:49 by ADMIN
Release 2025.3.806 (2025 Q3)

NullReferenceException when inserting a document containing a table with a document variable having a line break (\n) in its value.

In Development
Last Updated: 17 Oct 2025 14:58 by ADMIN
Importing a DOCX file containing a footer with a content control that contains more than one paragraph leads to exporting an empty document without any errors indicating the problem.
In Development
Last Updated: 08 Oct 2025 08:43 by ADMIN
NotSupportedImageFormatException is thrown during DOCX to PDF conversion in Linux.
Unplanned
Last Updated: 12 Sep 2025 14:49 by Tibor

Import/export strips w:colFirst and w:colLast from table's <w:permStart> elements.

Expected:

Actual:


Unplanned
Last Updated: 15 Sep 2025 13:07 by Tibor
Disappearing borders due to "w:val" property changing from "none" to "nil" on import-export.
Unplanned
Last Updated: 15 Sep 2025 13:28 by Tibor
The "w:multiLine" property of a text content control is lost on import-export.
<w:sdt>
  <w:sdtPr>
    <w:text w:multiLine="1"/>
  </w:sdtPr>
  <w:sdtContent>
    <w:r>
      <w:t>Line 1</w:t>
    </w:r>
    <w:r>
      <w:br/>
    </w:r>
    <w:r>
      <w:t>Line 2</w:t>
    </w:r>
  </w:sdtContent>
</w:sdt>
Unplanned
Last Updated: 26 Sep 2025 09:01 by Monali
Created by: Monali
Comments: 0
Category: WordsProcessing
Type: Feature Request
0
Add support for Ink annotations (InkML).