2024 v1

Added ability to cancel expanding rows with details.
Improved GridGroupRow to handle merged-ranges honoring TreeColumnIndex.
Added GetCellDisplayValue method to FlexGrid, GridRow and GridColumn to be used in editors.
Added keyboard handling to expand and collapse group rows.
Added ChildItemsPath property to display hierarchical data-sources.
Added TreeColumnIndex to specify which column show toggle group buttons.

Fixed rows model when setting GroupSummaryRows at runtime with 2 or more grouping levels.
Fixed case-sensitive issue with GridFilterRow when AutoComplete is enabled.
Fixed issue in the order of the rows after changing GroupRowPosition to BelowData and None.
Fixed computation of summaries when having multiple grouping levels.
Fixed exception when reordering a column or row in edit mode.
Fixed options menu not appearing in SummaryRow when OptionsMenuVisibility is different from Collapsed.
Fixed bottom freezing line not appearing.
Fixed the issue where detail-row header is focusable to avoid recycling the cell and have the keyboard focus in an unexpected place.
Fixed the issue where group-row button is focusable to avoid recycling the cell and have the keyboard focus in an unexpected place.
Fixed FlexGrid to allow inserting rows created with GridBoundRow(object dataItem) and work like bound rows without a DataCollection.
Fixed the issue where exception is thrown when both the value of a cell and the converter of the column were null.

Fixed the issue where tapping on the cell of a nested grid is performing wrong logic in the parent grid.
Fixed the issue where focus is lost on starting the editing by keystroke when the editing cell is out of view.
Fixed the issue where unbind process is not working fine on adding rows.