Syncfusion Essential Studio Windows Forms 2026 Volume 1 SP1 (33.2.6)

Released: May 12, 2026

Updates in 2026 Volume 1 SP1 (33.2.6)

Fixes

  • Calculate
    • An issue related to recursive named range validation causing a hanging issue in CalcEngine has been fixed.
    • An issue related to duplicate key exception in CalcEngine when re-enabling sheet calculations after external sheet registration has been fixed.
  • ScheduleControl
    • Multi-day appointments in the WorkWeek view will now correctly display their next-day portion in ScheduleControl.
    • Cross-midnight appointments in the WorkWeek view are now saved correctly, and span appointments can be dragged up or down without increasing their height, maintaining their size and moving accurately based on the drag position in ScheduleControl.
  • SfDataGrid
    • Fixed an issue where the FilterElement.IsSelected property was not updated correctly when the Select All option was unchecked while search text was applied in GridFilterControl.