A nested group is not aligned properly on being expanded and collapsed if the autoExpandAll option is disabled.
A Tabbed item that resides in the Popup Editing Form is not hidden at runtime in an Angular app.
Column headers are not aligned with data cells if columns don't occupy the whole widget width and columnAutoWidth is enabled.
Content is rendered partially when rowRenderingMode is set to virtual and scrolling mode is set to infinite.
Editor that resides in a cell template does not allow typing text when it is selected using a double-click in IE 11.
Filter Panel displays the "Is Any Of 'undefined'" string if the "Any Of" operator is applied for a lookup column.
Filter Row - The caret automatically goes to the start after typing in IE.
Grouped rows are rendered incorrectly when the rowAlternationEnabled option is enabled.
It is impossible to get groupIndex in the calculateCustomSummary callback function.
Records are rendered incorrectly when using knockout components within cell templates.
Scroll bar position is reset after scrolling if there is a DevExtreme widget on a page.
The Between filter does not work if a column uses calculateCellValue and the dataField property is not defined.
The column reordering is slow in IE/Edge.
The filter operations list in the Filter Row is not adjusted if the column's data type is changed at runtime.
The filter popup scrolls the page.
The filter row editor loses its focus when a filter is applied and the filter panel is visible.
The first cell is not highlighted if the Tab key is pressed first.
The onRowUpdating event is raised twice for a Boolean column if eventArgs.cancel is true.
The rowUpdating event is not raised for all updated rows the first time.
Virtual scrolling works in Chrome only.
DataGrid displays an unnecessary horizontal scrollbar if columnAutoWidth and columnHidingEnabled are set.
DataGrid displays lookup filter row data confusingly when FilterBuilder uses the not-equals filter.
DataGrid has an incorrect layout after resizing columns with multi-row headers.
DataGrid sometimes scrolls to the top when a user moves a scroll bar to the bottom.
DataGrid, TreeList - Initial width of a column with the specified minWidth value can be less than this value when the width value is specified in percents.
A rendering issue occurs on grouping the grid if it uses the virtual scrolling feature.
Error row is not shown if the showColumnHeaders option is false.
Filter "Is Not Blank" doesn't work when Filter Builder is enabled.
TabPanel items are not rendered after upgrading to 18.1.4 in a master-detail layout.
The horizontal scroll bar is not responding correctly when the DataGrid container is resized in Chrome.
Data Visualization
Chart - Export to PDF produces a low quality document that cannot be opened in Adobe Acrobat Document.
Chart - An Axis label's opacity option cannot be set to 0.
VectorMap - It's impossible to import the parse method in a modular application.
VectorMap - Order of layers after resetting the layers array option is modified.
DevExtreme Core
A material theme doesn't work properly with SPA-framework.
Popup - The multi-slot transclusion causes the $compile:noslot error.
The "Expected 3-4 arguments, but got 1 error" message is received when using the events.off method.
DevExtreme Demos
Documentation - The ActionSheet target option refers to the missing 'position' option.
Pivot Grid
Visualization problem on Microsoft Edge.
PivotGrid shows metadata fields in FieldChooser.
PivotGrid sorts numeric columns incorrectly.
Scheduler
Documentation - Add a note that the dx ready event should be used to apply bindings.
The onContentReady function is not called if the dataSource option is not initialized.
Actual width controlled by dx-scheduler-cell-sizes-horizontal cannot be set to less than 48px and depends on the crossScrollingEnabled option.
Excess gap at the bottom.
Group cells have incorrect height in the timeline day view in IE11.
Header cells are missaligned in the timelineWeek view if cellDuration is large.
How to avoid multiple reloading when several properties are changed.
The "Cannot set property 'top' of undefined" error occurs when navigating between months if UTC +9:30 ACST Australian Central Standard Time is set.
Scheduler incorrectly calculates the startDate option for a recurring appointment.
Scheduler renders appointments incorrectly when the cellDuration option has certain values.
Tree List
Performance in IE/Edge is slow on expanding or selecting nodes when a data source contains several thousands of records.
UI Widgets
ColorBox - The "RangeError: Maximum call stack size exceeded" error occurs if editAlphaChannel is true and the value option doesn't have an alpha channel.
DataGrid - A filter row works incorrectly for numeric columns under certain circumstances.
DateBox - A validation message does not disappear after clicking a selected valid date.
DateBox - Case sensitive date must be inputted if the display format is set.
Documentation - Describe the showDropdownButton option for the Tagbox widget.
dxNumberBox - A selected number is not replaced with a new one.
dxNumberBox - It is impossible to enter the "-" sign in Firefox.
dxSelectBox does not scroll to the selected item after the search.
List - Searched text is lost if typed between requests to the server when searchTimeout is set.
NumberBox - Placeholder does not disappear when using mouse wheel or arrows.
SelectBox - The Clear button is not hidden when being clicked and the drop-down list is opened.
SelectBox hides its drop-down window automatically when the focusStateEnabled option is set to false and the searchEnabled option is set to true.
Slider - a value is jumping.
TabPanel - Page scrolls to top when a header filter is clicked.
Tabs - Provide the “noDataText” configuration property.
TreeView - The root node's intermediate state is not shown during filtering.
TreeView throws the "The 'company_1' key value is not unique within the data array." Error.
UI WIdgets - The e.event option returns undefined in the onValueChanged event handler if the Clear button is clicked.
DevExtreme (ASP.NET MVC)
Data Grid
DataGrid that resides in a detail template of another grid does not apply validation rules based on Data Annotations attributes.
The grid does not save changes on pressing Enter in IE 11 and MS Edge in cell editing mode.
IDE Integration
"Add DevExtreme to project/Upgrade Devextreme resources" is missing in Visual Studio 2017 ( version 15.8.1 ) for MVC Core projects.
Errors on adding DevExtreme to an existing ASP DevExpress MVC project.
MVC - .NET framework version selector appears when a .NET core project template is selected.
Pivot Grid
Column headers are shifted after scrolling in IE11 and Edge if scrolling.useNative is "true".