ComponentOne Studio Data Services Edition Releases

MESCIUSData & Integration Suites.NET
Version 2026 v2 (Nov 3, 2026)

Learn what's new across releases, with details of features, enhancements, and resolved issues.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
ComponentOne Studio Data Services Edition 2026 v2Nov 3, 2026
Features
  • C1.DataCollection
    • Added support when JsonSerializerIsReflectionEnabledByDefault is set to false to the following libraries:
      • Serialization.
      • SignalR.Client.
      • SignalR.Server
    • Added the AddDataCollection extension for serialization.
    • Added support for IsAotCompatible to the following libraries:
      • AdoNet.
      • Android.
      • iOS.
      • BindingList.
      • EntityFrameworkCore.
      • Serialization.
      • SignalR.Client.
      • SignalR.Server.
      • Win.
      • WinUI.
      • WPF.
  • C1.DataEngine
    • Updated the C1.DataCollection dependency to version 10.0.20262.5.
  • C1.PDF
    • Updated Mescius License Manager.
    • Added support for the public C1.Util.BigEndianBinaryReader and C1.Util.BigEndianBinaryWriter classes.
    • Added support for demonstrating PDF linearization with a multi-page document in the CreatePDF sample.
    • Added support for the Picture property with the RtfPicture type on the RtfPictureShape object.
    • Added support for PDF linearization through the C1PdfDocument.UseLinearized property.
    • Added support for rendering C1Chart and C1Diagram content to PDF, DOCX, and RTF formats through C1PdfDocument and C1WordDocument.
    • Added support for demonstrating chart and diagram rendering in the ChartToPdf sample.
  • C1.Excel
    • Updated Mescius License Manager.
    • Added support for rendering C1Chart and C1Diagram content to HTML with PNG and SVG output through C1.Excel.
    • Added support for rendering chart and diagram content with SvgRendering and SvgGraphicsRendering.
Fixes
  • C1.DataCollection
    • Fixed an issue where members of the non-generic C1LengthList were incorrectly trimmed in net7 when a dependency originated from a net6 library.
    • Fixed an issue where C1WrapDataCollection did not handle collections of structures correctly.
  • C1.DataConnector
    • Fixed an issue where OData queries failed to parse DateTime filter expressions containing incorrectly URL-encoded special characters.
    • Fixed an issue where OData connections with an empty schema caused exceptions during schema retrieval and data querying.
  • C1.PDF
    • Fixed package vulnerabilities by updating System.Security.Cryptography.Pkcs dependency from 9.0.0 to 9.0.21 to address CVE-2026-84008.
    • Fixed an issue where metafile image were rendered incorrectly when the image was converted to SVG.
    • Fixed an issue where heading fonts were not retained when loading and saving DOCX files through C1WordDocument.
    • Fixed an issue where Japanese characters were displayed when FullWidthBullet lists were created using AddListTexts in C1Word.
    • Fixed an issue where RussianLowerLetter and RussianUpperLetter lists were not displayed correctly in DOCX files when created using AddListTexts in C1Word.
    • Fixed an issue where vertical text extended beyond the rectangle bounds when converting metafile images to HTML.
    • Fixed an issue where radio buttons and checkboxes were not displayed when converting HTML files to PDF through DrawStringHtml().
    • Fixed an issue where submit and reset buttons were not rendered correctly when converting HTML files to PDF through DrawStringHtml().
    • Fixed an issue where some text was not displayed when previewing generated PDF files in the default PDF viewers of Firefox and Edge.
    • Fixed an issue where table cell widths did not reflect the specified CELLPADDING attribute when converting HTML files to PDF through DrawStringHtml().
    • Fixed an issue where text input fields were not displayed when converting HTML files to PDF through DrawStringHtml().
ComponentOne Studio Data Services Edition 2026 v1.2Aug 12, 2026
Features
  • C1.DataEngine
    • Updated the C1.DataCollection dependency to version 10.0.20261.8.
Fixes
  • C1.DataCollection
    • Fixed an issue where C1WrapDataCollection did not handle collections of structures correctly.
  • C1.DataConnector
    • Fixed an issue where the UI became unresponsive while data was batch-loaded from an OData server.
  • C1.DataEngine
    • Fixed an issue where using nullable types for PivotField caused an exception in some scenarios.
  • C1.Excel
    • Fixed an issue where an ArgumentException was thrown when an XLS file containing non-ASCII OLE storage names was loaded.
    • Fixed an issue where rotated text containing line breaks was exported incorrectly to PDF using the C1Pdf exporter in FlexReport.
    • Fixed an issue where the DiagonalUp border attribute was not retained after an XLSX file was loaded and saved.
    • Fixed an issue where distributed vertical alignment could not be applied to cells in XLSX and XLS files.
  • C1.Pdf
    • Fixed an issue where a System.IndexOutOfRangeException was thrown when a file containing a specific metafile image was saved as HTML and the image was converted to SVG.
    • Fixed an issue where a System.NullReferenceException was thrown when specific EMF images were exported to PDF using DrawImage.
    • Fixed an issue where left borders were clipped when an HTML file was converted to PDF using DrawStringHtml().
    • Fixed an issue where the background color was not rendered correctly after a DOCX file was read and written using the new C1WordDocument.
    • Fixed an issue where bullets and numbering in nested RTF lists were not retained when a C1FlexReport containing an RTF field was exported to HTML or PDF.
    • Fixed an issue where an exception was thrown when Japanese text was drawn using DrawString with the Century font on Windows 11.
ComponentOne Studio Data Services Edition 2026 v1.1Jul 10, 2026
Features
  • DataCollection
    • Breaking changes - Removed the IsTrimmable attribute from the .NET 6 target framework DataCollection Win and WPF. The attribute remains available in .NET 7 and later versions.
    • Added the IsTrimmable attribute to the following libraries:
      • AdoNet.
      • Android.
      • DataCollection.
      • iOS.
      • BindingList.
      • EntityFrameworkCore.
      • ScheduleCore.
      • Serialization.
      • SignalR.Client.
      • SignalR.Server.
      • Win.
      • WinUI.
      • WPF.
  • C1.DataEngine
    • Updated the C1.DataCollection dependency to version 10.0.20261.6.
Fixes
  • DataCollection
    • Fixed an issue where the C1WrapDataCollection constructor threw an exception when the source collection was null.
    • Fixed an issue where resolving stub attributes caused runtime errors in .NET 6 applications.
  • C1.DataConnector
    • Fixed an issue where the ESCAPE clause behaved inconsistently with standard SQL syntax.
    • Fixed an issue in C1.AdoNet.Json where using a derived column in the ORDER BY clause produced incorrect results.
ComponentOne Studio Data Services Edition 2026 v1Major versionJun 3, 2026
Features
  • C1.DataCollection
    • Added the ClearCache method to C1CacheDataCollection and C1ConvertDataCollection.
    • Updated the Microsoft.WindowsAppSDK NuGet dependency to version 1.7.251014001.
    • Updated assembly references.
  • C1.Excel
    • Added support for parsing XLImage objects, including bitmap, EMF, and SVG images, from Open XML files.
    • Added support for saving XLImage objects, including bitmap, EMF, and SVG images, to Open XML files.
    • Added support for converting EMF files using IRendering (SVG).
  • C1.Pdf
    • Added improved HTML rendering for SVG, PDF, DOCX, and RTF output formats.
    • Added underline rendering in Open XML output that matches RTF output.
Fixes
  • C1.DataConnector
    • Fixed an issue where using C1 controls in C++/CLI applications caused errors.
  • C1.DataEngine
    • Fixed an issue where using C1 controls in C++/CLI applications caused errors.
  • C1.Excel
    • Fixed an issue where images in table cells were misaligned when loading specific Excel files in the ExcelViewerWin sample.
    • Fixed an issue where JPEG images added using the XLPictureShape() method rendered with incorrect sizes in exported Excel files.
  • C1.Pdf
    • Fixed an issue where exported PDF documents appeared blank when generated from specific EMF images using DrawImage().
    • Fixed an issue where DrawStringHtml() ignored RectangleF boundaries and overwrote footer content when rendering tables.
    • Fixed an issue where content was repeated across page breaks when rendering RTF content to PDF.
    • Fixed an issue where the TimesNewRomanPSMT font was embedded incorrectly in exported PDF documents.
    • Fixed an issue where RTF content rendered with incorrect line wrapping and text layout when exported to PDF.
    • Fixed an issue where tables rendered incorrectly when converting RTF content to PDF.
    • Fixed an issue where charts rendered outside the specified rectangle bounds when metafiles were exported to PDF using DrawImage().
    • Fixed an issue where background colors appeared inside text when converting specific HTML files to PDF using DrawStringHtml().
    • Fixed an issue where merged-cell text did not display when converting specific HTML files to PDF using DrawStringHtml().
    • Fixed an issue where font styles changed when converting HTML files to DOCX documents using DrawStringHtml().
    • Fixed an issue where table cell widths rendered incorrectly in DOCX files created with RtfTable in C1WordDocument.
    • Fixed an issue where ellipse and rectangle graphics did not appear in exported DOCX files.
    • Fixed an issue where bullet list widths rendered incorrectly after read and write operations with C1WordDocument.
    • Fixed an issue where tables were not displayed after read and write operations on specific RTF documents using C1WordDocument.
    • Fixed an issue where fonts were not persistent in DOCX files after read and write operations using C1WordDocument.
  • ScheduleCore
    • Fixed an issue where using C1 controls in C++/CLI applications caused errors.
  • C1.TextParser
    • Fixed an issue where using C1 controls in C++/CLI applications caused errors.