Learn what's new across releases, with details of features, enhancements, and resolved issues.
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Infragistics Ultimate UI for WPF 26.1.54Sep 16, 2026
Features
BulletGraph
Add StartInset/EndInset pixel-gap range properties to linear gauge, bullet graph, and radial gauge - Ranges on the linear gauge, bullet graph, and radial gauge can only be offset by value, which requires knowing the control's pixel dimensions to produce a fixed-size gap. This adds StartInset/EndInset properties that inset a range's start/end by a number of device-independent pixels, enabling pixel-precise gaps between adjacent ranges regardless of control size.
DataChart
New Axis visibility properties:
Added properties AreLabelsVisible, AreAnnotationsVisible, AreTickMarksVisible and IsLabelPanelVisible to Axis, they can be used to toggle visibility for each type of element in the axis.
XamTreeGrid using Field Chooser throwing Index was out of range error when moving columns.
DataChart
Regression issue with XamDataChart using ScatterLineSeries and custom label converter, throwing index out of range error.
Editors
The RecentColorPalette property of the color picker should be public.
DataPresenter
ArgumentOutOfRangeException thrown when adding a Field and calling EnsureUniqueFieldPositions.
xamDataPresenter with treeview layout showing multiple row expansion indicators when changing the field layout.
Reporting
Fixed the report preview failing to load resource parts (images and fonts).
Ribbon
caption area's height resizes when toggling QuickAccessToolbarLocation Above\BelowRibbon.
Spreadsheet
Row height of merged cells differs from how they appear in Microsoft Excel.
SUMIF doesn't recalculate after importing an Excel file.
SyntaxEditor
XamSyntaxEditor - 'CLIPBOARD_E_CANT_OPEN' occurs when [ctrl] + [c] is kept pressed for a while.
Infragistics Ultimate UI for WPF 26.1.21Major versionJun 24, 2026
Features
New Chart Features
Range Bar Series - Added support for the RangeBarSeries, a new xamDataChart series type for rendering value ranges as horizontal bars. It is the bar-oriented counterpart to the RangeColumnSeries and uses a NumericXAxis together with a CategoryYAxis.
Added MarkerSize property so you can set an exact width and height in device-independent pixels for markers on supported chart series and restore template sizing with 'NaN'.
Added the Checkmark marker type for chart series markers and legend badges.
Fixes
DataChart
Regression issue with XamDataChart using ScatterLineSeries and custom label converter, throwing index out of range error.
DonutChart
DonutChart is not showing the LegendItemBadgeTemplate when themes are applied.
TileManager
XamTileManager displays no tiles when only last tile is in view and that tile is removed when using Vertical layout order.
DataPresenter
Headers displayed above child records are not indented to the same value as the source record.
DataTree
XamDataTree: External button Click/Command not fired when node is in inline edit mode.
TextEditor
TextEditor resizes slightly when entering edit mode.
PropertyGrid
When using a ContentPresenter in an EditTemplate scrolling the property grid causes values to change.
TextEditor
XamRichTextEditor incorrectly shows horizontal scrollbar for loaded RTF file.
DataGrid
Grouping in DataGrid by Unbound field with CalculationSettings formula doesn't recalculate.
TreeGrid
'System.InvalidOperationException: Collection was modified' occurs in an application containing XamDataTree.
Excel
Saving a VBA Signed Excel file does not keep a signature/certificate.
Infragistics Ultimate UI for WPF 25.2.107Mar 23, 2026
Features
Charts
Added OthersCategoryBrush and OthersCategoryOutline to DataPieChart.
Fixes
XamDataGrid
Grid with RecordSelectorNumberType set to DataItemIndex makes the grid show horizontal scrollbar.
XamRichTextEditor
XamRichTextEditor selecting all and then pasting content from an outside source results in an exception.
XamTileManager
XamTileManager displays no tiles when only last tile is in view and that tile is removed when using Vertical layout order.
XamDataPresenter
Headers displayed above child records are not indented to the same value as the source record.
XamDataPresenter
xamDataGrid - Preview of ChildRecordsDisplayOrder BeforeParent.
Grouping in DataGrid by Unbound field with CalculationSettings formula doesn't recalculate.
MergedCells - Merged cells are not printed in an expected way.
DataTooltipLayer
TitleTextColor is over-riden when chart's TitleTextColor is used.
Excel
Fixed Excel Formula parser - Workbook.Load() throwing a Excel.FormulaParseException.
Object's Formulas are not round-tripped - Added Excel support for round tripping the camera tool.
Saving a VBA Signed Excel file does not keep a signature/certificate.
XamDataTree
Argument Null Exception occurs when re-templating the XamDataTreeNodeControl and selecting a node.
XamRichTextEditor
RichTextEditor Loading an .rtf file with tables sometimes loads without table formatting.
XamDataChart
AssigningCategoryStyle args.GetItems is null or not working to update items in the fragment series.