2026 v1.1

Calendar

Bug Fixes

• Fixed an issue where the DateValueSelected event triggered when the drop‑down calendar updated while DateEditor contained a date value.

• Fixed an issue where the PostValidation error message did not appear after selecting an invalid date in the C1DateEdit drop‑down calendar.

• Fixed an issue where C1DateRangeEdit did not clear its value after selecting Clear following the selection of the current date.

• Fixed an issue where predefined range text was truncated when FontStyle was set to Italic in C1DateRangeEdit.

• Fixed a issue where NullReferenceException occurred when opening the drop‑down calendar after calling Reset() in the DayFormatting event of C1DateEdit.

Document

Bug Fixes

• Fixed an issue where extra line spacing was added at the end of a TextField.

FlexChart

Bug Fixes

• Fixed an issue where the save indicator (*) did not appear after adding a new series through the C1FlexRadar Smart Tag menu.

• Fixed an issue where C1FlexChart calculated incorrect Y‑axis scaling during zoom operations after setting Stacking=Stacked at run time.

• Fixed an issue where C1FlexChart rendered incorrectly during panning after setting Stacking=Stacked at runtime.

• Fixed an issue where chart header and footer styles were not preserved after design‑time modifications.

• Fixed an issue where linear gradients rendered incorrectly in exported SVG files.

• Fixed an issue where new series created in the Series Collection Editor were assigned the default name C1.Win.Chart.Series instead of a valid series name.

• Fixed an issue where C1FlexPie data labels displayed incorrectly when PieDataLabel.Position changed from Circular to Sides.

• Fixed an issue where SVG export did not preserve line breaks in FlexChart data labels when label angle settings were applied.

• Fixed an issue where axis labels were clipped when grouping was enabled.

• Fixed an issue where cumulative histograms displayed an empty gap for bins with zero frequency.

• Fixed an issue where FlexChart displayed incorrect axis label intervals when TimeUnit was set to Week.

FlexGrid

Bug Fixes

• Fixed an issue where the sort indicator overlapped the sort icon when sorting a column with ShowSortPositionEnum=Auto.

• Fixed an issue where the sort icon was positioned incorrectly when sorting a filtered column with ShowSortPositionEnum=Auto.

• Fixed an issue where the sort icon was positioned incorrectly when sorting a column with fixed rows and ShowSortPositionEnum=Auto.

• Fixed an issue where a band appeared selected in the ColumnPicker dialog while the associated column remained hidden.

• Fixed an issue where AutoSizeRows truncated text.

• Fixed an issue where the first key press in the grid editor did not update the editor value.

• Fixed an issue where exported FlexGrid images displayed SparkLines as "(Collection)".

FlexPivot

Bug Fixes

• Fixed an issue where charts appeared empty when ChartType=Pie and UseAxisScrollbar=true.

• Fixed an issue where undo operations did not restore chart palette changes correctly.

Input

Bug Fixes

• Fixed an issue where text editor-based controls did not correctly handle focus state during initialization.

• Fixed a issue where NullReferenceException occurred when AutoCompleteMode was enabled while the UI Automation provider was active.

Input.Pickers

Bug Fixes

• Fixed an issue where the drop‑down list did not collapse when reselecting the currently selected font.

InputPanel

Bug Fixes

• Fixed an issue where C1InputPanel did not support item navigation for hosted C1MultiSelect controls.

Ribbon

Bug Fixes

• Fixed an issue where RibbonComboBox did not clear its text when SelectedItem was set to null.

• Fixed an issue where font and button sizes did not update when applying the Material or Office365 theme.

TouchToolKit

Bug Fixes

• Fixed an issue where NullReferenceException occurred at design time when repositioning controls within C1ZoomPanel.

• Fixed an issue where C1MultiScaleImage was rendered as a component.

TreeView

Bug Fixes

• Fixed an issue where the C1Checklist Smart Tag could not edit items.

TrueDBGrid

Bug Fixes

• Fixed an issue where the grid editor displayed a placeholder name instead of C1.Win.TrueDbGrid.GridEditor.

• Fixed an issue where an AmbiguousMatchException occurred when opening the designer after adding a control to a form.

• Fixed an issue where an incorrect row remained selected after calling Delete() when TrueDBGrid.DataView was set to GroupByView.

• Fixed an issue where an InvalidCastException occurred when focus moved to a cell in a different row after loading specific XML layout files.