Essential Studio for Windows Forms Release Notes

v30.1.42
July 29, 2025
Test Results: 156548 Success , 0 Failure

Diagram

Bug fixes

  • #749669 - Resolved a MissingManifestResourceException that occurred when updating diagram styles using the Designer.

DocIO

Bug Fixes

  • I745124 - Document protection will no longer be disabled when an incorrect password is used with any protection option.
  • I744374 - Header content is now preserved properly when resaving a DOCX document.
  • I748803 - Tabs are now preserved properly after calling the AppendHTML API.
  • I749728 - The ArgumentOutOfRangeException will no longer be thrown during a mail merge with RemoveEmptyGroup enabled.
  • I745681 - Mail merge records is now executed properly when performing group mail merge with LIKE/NOT LIKE operators.

PDF

Bug Fixes

  • I736822 - Corrected an issue where annotations were not properly redacted in the PDF document.
  • I742502 - Resolved an exception that was thrown when merging a PDF containing form fields.
  • I736840 - Resolved an issue by analyzing opportunities to improve compression performance.
  • I738378 - Fixed an issue where the form fields were not updated correctly after inserting the external document into the PdfLoadedDocument.
  • F197018 - Resolved an issue where resources were not removed from the PDF even after pages were deleted from the document.
  • I745197 - Fixed an issue where the position of the radius annotation was incorrect after flattening.
  • I688368 - Resolved an issue that prevented exceptions from being thrown while loading a corrupted document.
  • I742214 - Fixed the System.ArgumentOutOfRangeException that occurred when using ExtractText(out TextLines).

Presentation

Bug Fixes

  • I747597 - The NullReferenceException will no longer be thrown while opening a PowerPoint presentation with custom slide layout path.

SfDataGrid

Bug fixes

  • #I745994 - The TargetInvocationException will no longer be thrown when clicking the checkbox in the GridCheckBoxColumn, provided that AllowCheckBoxOnHeader is set to true and an ExpandoObject is used as the DataSource.

  • #FB68562 - Now, the title of TableSummaryRow is displayed even if no summary columns are defined.

XlsIO

No Changes for this product in this version.

Test Results

Component Name Test Cases Passed Failed Remarks
Calculate 131 131 0 All Passed
CheckBoxAdv 124 124 0 All Passed
CombinedControls 293 293 0 All Passed
ComboBoxAdv 332 332 0 All Passed
DockingManager 1656 1656 0 All Passed
EditControl 351 351 0 All Passed
PdfViewer 207 207 0 All Passed
PivotChart 122 122 0 All Passed
PivotGridControl 168 168 0 All Passed
RibbonControlAdv 1426 1426 0 All Passed
SfDataGrid 853 853 0 All Passed
TabbedMdiManager 478 478 0 All Passed
TabControlAdv 722 722 0 All Passed
TreeViewAdv 445 445 0 All Passed
DocIO 39817 39817 0 All Passed
PDF 14345 14345 0 All Passed
Presentation 50976 50976 0 All Passed
XlsIO 44102 44102 0 All Passed