Unplanned
Last Updated: 11 Jul 2025 09:57 by Jennifer
This is the code for generating the document from scratch: 
        static void Main(string[] args)
        {
          
            Telerik.Windows.Documents.Flow.Model.RadFlowDocument document = CreateDocument();
            Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider provider = new Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider();
            string outputFilePath = "output.docx";
            File.Delete(outputFilePath);

            using (Stream output = File.OpenWrite(outputFilePath))
            {
                provider.Export(document, output, TimeSpan.FromSeconds(10));
            } 

            Process.Start(new ProcessStartInfo() { FileName = outputFilePath, UseShellExecute = true });
        }

        //Not working example
        private static RadFlowDocument CreateDocument()
        {
            int FullPercentWidth = 100;
            var document = new RadFlowDocument();
            var editor = new RadFlowDocumentEditor(document);

            editor.InsertSection();

            var header = document.Sections.First().Headers.Add().Blocks.AddParagraph();
            header.TextAlignment = Alignment.Center;

            editor.MoveToParagraphStart(header);
            editor.InsertLine("Dissemination Label");

            var br = new Break(document);
            header.Inlines.Add(br);

            editor.MoveToParagraphEnd(header);
            editor.InsertText("Test");

            editor.MoveToParagraphStart(document.Sections.First().Blocks.AddParagraph());

            editor.InsertParagraph();
            editor.InsertLine("First Header");
            editor.InsertLine("Second Header");

            editor.TableFormatting.StyleId = BuiltInStyleNames.TableGridStyleId;
            document.StyleRepository.AddBuiltInStyle(BuiltInStyleNames.TableGridStyleId);

            Table table = editor.InsertTable();
            table.PreferredWidth = new TableWidthUnit(TableWidthUnitType.Percent, FullPercentWidth);
            table.LayoutType = TableLayoutType.AutoFit;

            TableRow headerRow = table.Rows.AddTableRow();

            var cell = headerRow.Cells.AddTableCell();
            var cellParagraph = cell.Blocks.AddParagraph();
            _ = cellParagraph.Inlines.AddRun("ID");

            var cell2 = headerRow.Cells.AddTableCell();
            var cellParagraph2 = cell2.Blocks.AddParagraph();
            _ = cellParagraph2.Inlines.AddRun("Title");

            var cell3 = headerRow.Cells.AddTableCell();
            var cellParagraph3 = cell3.Blocks.AddParagraph();
            _ = cellParagraph3.Inlines.AddRun("Page Number");

            for (var i = 0; i < 3; i++)
            {
                var dataRow = table.Rows.AddTableRow();

                string id = "ID-" + i;

                var cell4 = dataRow.Cells.AddTableCell();
                var cellParagraph4 = cell4.Blocks.AddParagraph();
                _ = cellParagraph4.Inlines.AddRun(id);

                var cell5 = dataRow.Cells.AddTableCell();
                var cellParagraph5 = cell5.Blocks.AddParagraph();
                _ = cellParagraph5.Inlines.AddRun($"Fake Title {i}");

                var cell6 = dataRow.Cells.AddTableCell();
                var cellParagraph6 = cell6.Blocks.AddParagraph();
                editor.MoveToParagraphStart(cellParagraph6);
                editor.InsertField($"PAGEREF bookmark-{id}", string.Empty);
            }

            for (var i = 0; i < 3; i++)
            {
                var id = "ID-" + i;

                var section = document.Sections.AddSection();

                section.SectionType = SectionType.NextPage;

                var header2 = document.Sections.Count == 1
                    ? document.Sections.AddSection().Headers.Add().Blocks.AddParagraph()
                    : document.Sections.Last().Headers.Add().Blocks.AddParagraph();

                editor.MoveToParagraphStart(header2);
                editor.InsertLine("Dissemination Label");
                editor.InsertBreak(BreakType.LineBreak);

                editor.InsertLine("Fake Header");
                editor.InsertText("Display name");

                var table2 = new Table(document)
                {
                    PreferredWidth = new TableWidthUnit(TableWidthUnitType.Percent, FullPercentWidth),
                    LayoutType = TableLayoutType.AutoFit
                };

                var headerRow2 = table2.Rows.AddTableRow();

                headerRow2.CanSplit = false;

                var headerCell = headerRow2.Cells.AddTableCell();
                var headerParagraph = headerCell.Blocks.AddParagraph();

                headerParagraph.Inlines.AddRun("Title").FontWeight = FontWeights.Bold;
                headerParagraph.Spacing.SpacingAfter = 0;

                headerCell.ColumnSpan = 3;

                table2.LayoutType = TableLayoutType.FixedWidth;

                var row = InsertRow(table2);

                var cell7 = row.Cells.AddTableCell();
                var cellParagraph7 = cell7.Blocks.AddParagraph();
                _ = cellParagraph7.Inlines.AddRun("Stuff and things");

                var cell8 = row.Cells.AddTableCell();
                var cellParagraph8 = cell8.Blocks.AddParagraph();
                _ = cellParagraph8.Inlines.AddRun($"Stuff and things-{id}");
                editor.InsertBookmark($"bookmark-{id}");

                _ = InsertRow(table2);
                _ = InsertRow(table2);

                document.Sections.Last().Blocks.Add(table2);

                var table3 = new Table(document)
                {
                    PreferredWidth = new TableWidthUnit(TableWidthUnitType.Percent, FullPercentWidth),
                    LayoutType = TableLayoutType.AutoFit
                };

                var fakeText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed laoreet finibus nulla sit amet consectetur. Fusce dignissim sapien congue augue hendrerit, eu rutrum orci lacinia. Maecenas sit amet augue ut arcu consequat molestie ac pretium nulla. Donec venenatis rhoncus pulvinar. Aliquam vel est vitae lacus porta aliquam. Morbi aliquet vulputate turpis, ut vulputate elit accumsan at. Vivamus interdum dictum arcu vel euismod. Curabitur commodo eu nisi ut ultrices. Duis at auctor eros. Vivamus et metus ligula. Vestibulum feugiat velit a feugiat sodales. Sed vitae urna sodales, faucibus felis non, sagittis diam.\r\n\r\nPraesent turpis est, aliquet consectetur felis et, pharetra placerat ipsum. Sed at consectetur metus. Integer dictum iaculis libero, interdum vehicula ipsum convallis a. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Sed pretium ac quam id finibus. Maecenas bibendum magna vel rhoncus eleifend. Etiam nec ante nulla. Etiam lacinia vulputate quam, et ullamcorper magna fermentum quis. Suspendisse potenti. Quisque quis nulla non velit lacinia laoreet. Fusce et lacinia enim, sit amet rhoncus eros. Etiam placerat fringilla nibh ac commodo.\r\n\r\nMorbi ac commodo elit. Sed a leo quis sem convallis volutpat eget et nunc. In laoreet eleifend ullamcorper. Phasellus pharetra molestie eleifend. Cras consequat risus ac est accumsan sagittis. Suspendisse facilisis ultrices ipsum, vitae porttitor augue tincidunt ac. Ut sagittis nisl tristique efficitur aliquam. Pellentesque molestie mauris id ipsum lacinia, a vehicula eros molestie. Aliquam quis sagittis tellus.";

                for (var j = 0; j < 2; j++)
                {
                    var row2 = InsertRow(table3);
                    var cell9 = row2.Cells.AddTableCell();
                    var cellParagraph9 = cell9.Blocks.AddParagraph();
                    _ = cellParagraph9.Inlines.AddRun(fakeText);
                }

                document.Sections.Last().Blocks.Add(table3);
            }

            FlowExtensibilityManager.NumberingFieldsProvider = new NumberingFieldsProvider();
            foreach (var s in document.Sections)
            {
                 s.Footers.Add();
                Footer f = s.Footers.Default;

                Paragraph paragraph = f.Blocks.AddParagraph();
                paragraph.TextAlignment = Alignment.Right;

                editor.MoveToParagraphStart(paragraph);

                editor.InsertText("Page ");
                editor.InsertField("PAGE", string.Empty);
                editor.InsertText(" of ");
                editor.InsertField("NUMPAGES", string.Empty);

                var paragrpah2 = s.Blocks.AddParagraph();
                editor.MoveToParagraphStart(paragrpah2);
            }



            document.UpdateFields();

            return document;
        }
        private static TableRow InsertRow(Table table)
        {
            TableRow row = new TableRow(table.Document);
            table.Rows.Add(row);
            return row;
        }
Unplanned
Last Updated: 09 Jul 2025 06:52 by Vitalii

When exporting a PDF page to an image with the SkiaImageFormatProvider the following error occurs: 

System.IndexOutOfRangeException: 'Index was outside the bounds of the array.'

Unplanned
Last Updated: 02 Jul 2025 08:39 by Kris

Import the following HTML content and export it to DOCX format:

            <p>Here is my list</p>
            <ol start="108" style="list-style-type: lower-latin;">
                <li>Item 1</li>
                <li>Item 2</li>
            </ol>

Expected result: 

Actual result:

Unplanned
Last Updated: 23 Jun 2025 13:16 by ADMIN

When converting HTML to DOCX, margins set on an HTML element are ignored. These styles are exported correctly when the HTML passed to the converter is formatted with indents. The following XUnit test demonstrates this behavior with a simplified example.

using Telerik.Windows.Documents.Flow.FormatProviders.Docx;
using Telerik.Windows.Documents.Flow.FormatProviders.Html;

namespace MSPI.Tests.Unit;

public class WordExportTest
{
    [Fact]
    public async Task TextExport()
    {
        const string formattedDocumentSavePath = @"C:\Testing\export-test-formatted.docx";
        const string formattedContent = """"
            <p>Test paragraph</p>
            <ol style="margin-left: 100px;">
                <li>Item 1</li>
                <li>Item 2</li>
            </ol>
        """";

        const string minifiedDocumentSavePath = @"C:\Testing\export-test-minified.docx";
        const string minifiedContent = """"<p>Test paragraph</p><ol style="margin-left: 100px;"><li>Item 1</li><li>Item 2</li></ol>"""";

        var htmlFormatProvider = new HtmlFormatProvider();
        var docxFormatProvider = new DocxFormatProvider();

        await using var minifiedDocumentMemoryStream = new MemoryStream();
        var minifiedRadFlowDocument = htmlFormatProvider.Import(minifiedContent, TimeSpan.FromSeconds(30));
        docxFormatProvider.Export(minifiedRadFlowDocument, minifiedDocumentMemoryStream, TimeSpan.FromSeconds(30));
        var minifiedBytes = minifiedDocumentMemoryStream.ToArray();
        await File.WriteAllBytesAsync(minifiedDocumentSavePath, minifiedBytes);

        await using var formattedDocumentMemoryStream = new MemoryStream();
        var formattedRadFlowDocument = htmlFormatProvider.Import(formattedContent, TimeSpan.FromSeconds(30));
        docxFormatProvider.Export(formattedRadFlowDocument, formattedDocumentMemoryStream, TimeSpan.FromSeconds(30));
        var formattedBytes = formattedDocumentMemoryStream.ToArray();
        await File.WriteAllBytesAsync(formattedDocumentSavePath, formattedBytes);
    }
}

The minified HTML produces the following document:

The formatted HTML produces the following document:

 

Unplanned
Last Updated: 20 Jun 2025 08:33 by Michael
Created by: Michael
Comments: 0
Category: PdfProcessing
Type: Bug Report
0
Import-export changes the color of the shading object.
Unplanned
Last Updated: 17 Jun 2025 07:09 by ADMIN

Read the documentation for CancelationTokenSource.CancelAfter:

this method will throw an ArgumentOutOfRangeException when: delay.TotalMilliseconds is less than -1 or greater than Int32.MaxValue (or UInt32.MaxValue - 1 on some versions of .NET). Note that this upper bound is more restrictive than TimeSpan.MaxValue.

----------------------------------------------------

your code in CancelationTokenSourceFactory.CreateTokenSource does this check:

if (timeSpan.HasValue && timeSpan.Value != TimeSpan.MaxValue)

this check for TimeSpan.MaxValue seems totally pointless here, if timeSpan is anything between ~2147483647 and 922337203685476 milliseconds long this will still just throw a ArgumentOutOfRangeException.

I suspect that this check was intended as a way to prevent creating a cancellation timer that never triggers in the CancellationTokenSource, which should look like this:

if (timeSpan.HasValue && timeSpan != Timeout.InfiniteTimeSpan) //Timeout.InfiniteTimeSpan is -1 milliseconds
which still seems like premature optimization with no noticeable benefit but at least it isn't completely pointless.
Unplanned
Last Updated: 09 Jun 2025 10:20 by Heidi

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

Unplanned
Last Updated: 04 Jun 2025 12:33 by Sailaja
Stacktrace: 
   at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Collections.Generic.Dictionary`2.FindValue(TKey key)
   at System.Collections.Generic.Dictionary`2.ContainsKey(TKey key)
   at Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.Model.Elements.Worksheets.ConditionalFormattingRuleElementX14.OnAfterRead(IXlsxWorksheetImportContext context) in C:\Work\document-processing\Documents\Spreadsheet\FormatProviders\OpenXml\Xlsx\Model\Elements\Worksheets\ConditionalFormatting\x14\ConditionalFormattingRuleElementX14.cs:line 62
Unplanned
Last Updated: 27 May 2025 11:03 by Thomas
PdfProcessing: ArgumentException is thrown when importing a document with a duplicated filed names.
Unplanned
Last Updated: 20 May 2025 15:13 by Christopher
Add support for documents with unexpected text between child elements (e.g. ZWNBSP).
Unplanned
Last Updated: 20 May 2025 11:38 by Babu
Background color is lost when formatting tags (<strong> and <u>) are applied to the content of a nested span.
Unplanned
Last Updated: 05 May 2025 10:02 by Svitlana
Multiple graphic state objects are lost on import.
Unplanned
Last Updated: 05 May 2025 09:23 by Robert

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.'

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: 28 Mar 2025 10:03 by Pablo
Exporting XLS file with filters results in a corrupted document.
Unplanned
Last Updated: 11 Mar 2025 09:50 by Jeanot
This is the code the for replicating the error: 
using Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Streaming;
using Telerik.Windows.Documents.Fixed.Model.Editing;
using Telerik.Windows.Documents.Fixed.Model.InteractiveForms;
using Telerik.Windows.Documents.Fixed.Model;
using Telerik.Documents.Primitives;
using System.Diagnostics;
using System.Reflection.Metadata;
using Telerik.Windows.Documents.Fixed.FormatProviders.Pdf;

namespace _1681158PdfInputFields
{
    internal class Program
    {
        static void Main(string[] args)
        {
           ExportExamplePdfForm();

        }

        public static void ExportExamplePdfForm()
        {
            RadFixedDocument fixedDoc = new RadFixedDocument();
            RadFixedPage fixedPage = fixedDoc.Pages.AddPage();
            FixedContentEditor editor = new FixedContentEditor(fixedPage);
            editor.Position.Translate(100, 100);
           
            
            TextBoxField textBox = new TextBoxField("textBox");
            fixedDoc.AcroForm.FormFields.Add(textBox);
            textBox.Value = "Sample text...";
            Size widgetDimensions = new Size(200, 30); 
            DrawNextWidgetWithDescription(editor, "TextBox", (e) => e.DrawWidget(textBox, widgetDimensions));

            string fileName = "output.pdf";
            File.Delete(fileName);
            // File.WriteAllBytes(fileName, new PdfFormatProvider().Export(fixedDoc, TimeSpan.FromSeconds(15)));


            string ResultFileName = "result.pdf";
            File.Delete(ResultFileName);
            using (PdfStreamWriter writer = new PdfStreamWriter(File.OpenWrite(ResultFileName)))
            {
                foreach (RadFixedPage page in fixedDoc.Pages)
                {
                    writer.WritePage(page);
                }
            }

            ProcessStartInfo psi = new ProcessStartInfo()
            {
                FileName = ResultFileName,
                UseShellExecute = true
            };
            Process.Start(psi);

            Console.WriteLine("Document created.");

             
        }

        private static void DrawNextWidgetWithDescription(FixedContentEditor editor, string description, Action<FixedContentEditor> drawWidgetWithEditor)
        {
            double padding = 20;
            drawWidgetWithEditor(editor);

            Size annotationSize = editor.Root.Annotations[editor.Root.Annotations.Count - 1].Rect.Size;
            double x = editor.Position.Matrix.OffsetX;
            double y = editor.Position.Matrix.OffsetY;

            Block block = new Block();
            block.TextProperties.FontSize = 20;
            block.VerticalAlignment = Telerik.Windows.Documents.Fixed.Model.Editing.Flow.VerticalAlignment.Center;
            block.InsertText(description);
            editor.Position.Translate(x + annotationSize.Width + padding, y);
            editor.DrawBlock(block, new Size(editor.Root.Size.Width, annotationSize.Height));

            editor.Position.Translate(x, y + annotationSize.Height + padding);
        }
    }
}
Unplanned
Last Updated: 05 Mar 2025 12:03 by Jason
Unplanned
Last Updated: 25 Feb 2025 14:53 by David
Chart with missing shape properties (shPr) is corrupted with black background after PDF export.
Unplanned
Last Updated: 21 Feb 2025 10:59 by Gal
Incorrect positioning of Right-to-left (RTL) numbers.
Unplanned
Last Updated: 21 Feb 2025 10:13 by Gal
Mangled Right-To-Left (RTL) content when multiple lines of text are drawn.
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