What's new


Release History

UI for ASP.NET AJAX R1 2021 (version 2021.1.119)

January 19, 2021


  • New Breadcrumb Component


  • RadAsyncUpload gets flatten in Bootstrap


  • ClientExportManager throws cannot read property expand of undefined


  • ComboBox arrow button must have discernible text


  • Create WorkSheetName property for RadGrid when exporting to XLSX
  • Auto-Fit column width when exporting to excel using Format=Xlsx
  • RadGrid export to preformatted excel file
  • RadGrid export to excel throws exception Index was outside the bonds of the array
  • Export to XLSX with unused ColumnGroup throws exception: Index was out of range
  • Status bar in Grid does not hide after Exporting a document when OnCommand client event is handled


  • Increase the default MaxSerializerLength value to int.MaxValue


  • Performance improvements when inserting tables using the RadFixedDocumentEditor.
  • An ArgumentException is thrown when importing a PDF containing overlapping codespace.
  • An ArgumentException is thrown when importing rectangle whose values are defined using indirect references.
  • An ArgumentOutOfRangeException is thrown when a TextBox field has a smaller size than the default padding of the field.
  • Importing a document containing link annotations and named destinations referring to the same object causes InvalidCastException.
  • An InvalidCastException is thrown when importing a document with FormXObject resources pointing to an indirect object.
  • An InvalidDataException is thrown while decoding stream from a PDF with Encryption Algorithm 4.
  • An InvalidDataException (Unknown compression method 'method-name') is thrown when opening a document.
  • An InvalidDataException is thrown when importing a document containing two trailers and the Encrypt object is part of the first Xref table.
  • Image with ICC Based colorspace is missing due to a NullReferenceException.
  • A NotSupportedException is thrown when the inline image stream starts on a new row.
  • Slow performance of CCITTFaxDecode filter.
  • Sporadical InvalidOperationException is thrown while importing documents from background threads.


  • Added DocumentInfo properties to preserve document metadata information.
  • An exception is thrown when importing an XLS file with a specific print area.
  • An InvalidOperationException is thrown when importing an XLS document containing an Extra Table Data record.


  • Spreadsheet appears broken when its parent container is initially hidden


  • Uncaught TypeError: Cannot read property 'get_visible' of undefined when ReorderTabsOnSelect=true


  • Window title bar gets flatten in Bootstrap


  • Introduced DocumentInfo properties to preserve document metadata information.
  • Introduced support for importing/exporting/editing of Content Controls (structured document tags).
  • LoadFromUri event is now obsolete. LoadStylesheetFromUri and LoadImageFromUri are the new events that should be used instead. When LoadFromUri is used for resolving images, even if the data is provided in the arguments, an HTTP call to the resource is made to resolve its extension. This can be potentially unwanted behavior in some client scenarios.
  • Introduced support for floating images when exporting to PDF.
  • Headings elements ('h1'-'h6') are imported from HTML with wrong styling.
  • Html style property values are omitted on import when the value contains a semicolon.
  • List indentation is imported from RTF as local paragraph properties.
  • A NullReferenceException is thrown while importing a document with header/footer and main part not named with the default name.
  • An OutOfMemoryException is thrown when exporting TabStops to PDF.
  • A paragraph in a TableCell which is in the last TableRow on the page is not exported to the PDF document.
  • Exporting documents to PDF creates a fully transparent polygon for text without predefined highlight and/or background color. As a result, the size of the exported PDF is improved by up to 40%.
  • Hyperlinks are not correctly exported to plain text.
  • Wrong NuGet dependencies cause a build-time error.
  • There is an empty space between two consecutive paragraphs with a defined background color when the SpacingBefore on the second is bigger than the SpacingAfter on the first.

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