Released: Jun 10, 2026

25.2.8 での更新項目

不具合の修正

ASP.NET Core

All ASP.NET Core products

• MongoDBDataSource - Decimal128 isn't recognized as a simple primitive type.
• Visual Studio Report Designer - JsonDataSource connection string misses defined header/query/path parameters.
• Web Dashboard - "Uncaught TypeError: Cannot read properties of null (reading 'hide')" error is thrown on attempt to scroll above the Bar column.
• Web Document Viewer - Mobile Mode performance is extremely poor for pinch zoom and panning.
• Web Report Designer - It is not possible to reorder parameters via the Edit Parameters dialog.
• XtraReport.SaveLayout - Disabling scripts causes CodeDOM serialization to lose script handler assignments.
• XtraReports - Duplicate XRControlStyle entries with identical names are added to StyleSheet when 'StyleSheet.LoadFromXml' is called multiple times.

Rich Text Editor for ASP.NET Core

• Cell selection via arrow keys does not work correctly.
• Ribbon item tooltip text is incorrect.

DevExtreme

DevExtreme Card View

• onOptionChanged is not triggered when column properties are updated.

DevExtreme Data Grid

• Native horizontal scrollbar is temporarily shown when clicking cells in batch/cell mode if focused row and column fixing features are enabled.
• TypeError occurs when selecting a file using a custom editor.
• navigateToRow does not always work.

DevExtreme Editors and Validation

• DateBox - There are issues with masking logic when inputting numbers via Numpad with Microsoft Bopomofo IME in Chinese Mode.
• DateBox - AM/PM dropdown is clipped in Fluent and Generic Themes.
• Datebox - Label is not rendered correctly on Firefox for Android.
• Lookup - Keyboard navigation doesn't work on mobile devices.
• Lookup - Search input has no localized aria-label.
• TagBox - Grouped tag removal removes fewer items than expected if showMultiTagOnly is disabled.
• TagBox - Multiple tag removal deletes most recently selected items instead of visually grouped tags.

DevExtreme Gantt

• onTaskUpdating cancel is ignored for narrow task resize and task is converted to milestone.

DevExtreme Layout and Navigation

• List doesn't expose NoDataText to screen readers when empty.
• List - Select All checkbox aria-label does not reflect the selectAllText value.
• Menu - Disabled Menu items have the "pointer" cursor.
• Scrollable - Simulated scrolling breaks after an unhandled JavaScript exception.
• Splitter - Cursor is misaligned when resizing after dynamically changing orientation.

DevExtreme Maps

• VectorMap - Mixed geometry types in GeoJSON are not supported.

DevExtreme Pivot Grid

• The expand icon doesn't work for some fields when OLAP cube is used.

DevExtreme Scheduler

• Appointments are incorrectly displayed after changing the DST.

ASP.NET MVC

All ASP.NET MVC products

• MongoDBDataSource - Decimal128 isn't recognized as a simple primitive type.
• Visual Studio Report Designer - JsonDataSource connection string misses defined header/query/path parameters.
• Web Report Designer - It is not possible to reorder parameters via the Edit Parameters dialog.
• XtraReport.SaveLayout - Disabling scripts causes CodeDOM serialization to lose script handler assignments.
• XtraReports - Duplicate XRControlStyle entries with identical names are added to StyleSheet when 'StyleSheet.LoadFromXml' is called multiple times.

MVC RichEdit

• Content near right border becomes inaccessible on mobile devices after switching to Simple View.
• Cursor is not visible on calling goToDocumentEnd in the DocumentLoaded event.
• Scroll unexpectedly jumps when editing a line on the 2nd+ page.

ASP.NET Web Forms

ASPxGridView

• Exported Excel file is empty if the grid contains empty band columns.

ASPxHtmlEditor

• Page freezes on switching to Design view if a script block contains the "<" character.

ASPxRichEdit

• Newline is added after a paragraph when text is pasted using the ribbon Paste button.
• Cursor is not visible on calling goToDocumentEnd in the DocumentLoaded event.
• Scroll unexpectedly jumps when editing a line on the 2nd+ page.

ASPxSpreadsheet

• Rightmost columns can't be resized on an ultrawide screen.

All ASP.NET Web Forms products

• MongoDBDataSource - Decimal128 isn't recognized as a simple primitive type.
• Visual Studio Report Designer - JsonDataSource connection string misses defined header/query/path parameters.
• Web Report Designer - It is not possible to reorder parameters via the Edit Parameters dialog.
• XtraReport.SaveLayout - Disabling scripts causes CodeDOM serialization to lose script handler assignments.
• XtraReports - Duplicate XRControlStyle entries with identical names are added to StyleSheet when 'StyleSheet.LoadFromXml' is called multiple times.

Blazor

All Blazor products

• Blazor Report Viewer - Parameter panel doesn't allow to select static predefined parameter values in some cases.
• DxReportDesigner - JSDisconnectedException is thrown when async initialization resumes after Blazor Server circuit disposal.
• DxReportViewer - Empty documents get stuck on "Loading...".
• MongoDBDataSource - Decimal128 isn't recognized as a simple primitive type.
• Native Blazor Report Viewer - Document Preview behaves incorrectly if an exception occurs when filling a report with data.
• Visual Studio Report Designer - JsonDataSource connection string misses defined header/query/path parameters.
• Web Report Designer - It is not possible to reorder parameters via the Edit Parameters dialog.
• XtraReport.SaveLayout - Disabling scripts causes CodeDOM serialization to lose script handler assignments.
• XtraReports - Duplicate XRControlStyle entries with identical names are added to StyleSheet when 'StyleSheet.LoadFromXml' is called multiple times.

Data Editors for Blazor

• CheckBox for Blazor - CheckBox click doesn't register in certain cases.
• ComboBox for Blazor - On-screen keyboard opens after item selection on touch devices.
• DxComboBox - AutoSearch with GroupFieldName keeps old filters.
• DxComboBox - Display text does not appear if the component is blurred before CustomData loads.
• DxComboBox - Wide dropdowns align with the combo box edge instead of spanning the entire window in v25.2.6.
• DxDateEdit - Mask is applied on clicking the control even if ReadOnly is enabled.
• DxFormLayout - Layout is clipped in DxFormLayout above DxGrid.
• DxPopup - Non-tabbable editable elements become unfocusable and uneditable when placed inside popups and dialogs.
• DxTimeEdit is incorrectly rendered.

Grid for Blazor

• DxGrid - Last columns are blank when VirtualScrollingMode is set to RowsAndColumns and the window is maximized.
• DxGrid - System.NullReferenceException error occurs if a summary item is bound to a field that is not bound to a column.
• DxGrid throws ArgumentOutOfRangeException when dragging virtualized columns to Group Panel.
• DxGrid - InvalidOperationException can occur with Enum-type based auto-generated editor.
• DxPopup - Non-tabbable editable elements become unfocusable and uneditable when placed inside popups and dialogs.

Navigation & Layout for Blazor

• DxComboBox - Wide dropdowns align with the combo box edge instead of spanning the entire window in v25.2.6.
• DxFormLayout for Blazor - Editor shadow frames are truncated in non-Fluent themes.
• DxPopup - Non-tabbable editable elements become unfocusable and uneditable when placed inside popups and dialogs.
• DxRibbon - Disabled items are not grayed out in the Fluent theme in v25.2.
• DxScheduler - Error is intermittently thrown when opening an appointment.

PDF Viewer for Blazor

• Zoom level selected in the toolbar is reset when the component's ZoomLevel property is accessed.

Rich Text Editor for Blazor

• Ruler is visible in Simple Mode.
• Page with DxRichEdit hangs after interacting with specific documents.
• Scroll unexpectedly jumps when editing a line on the 2nd+ page.

TreeList for Blazor

• DxTreeListEditor throws NotSupportedException when a summary is applied to an empty data source.
• ExpandoObject boolean columns are not displayed as checkbox icons.