# Changelog ## [Unreleased] ## 33.1.49 (2026-04-14) ### Tree Grid #### Bug Fixes - `#I824627` - Fixed an issue where drag and drop did not work when all records were collapsed, and dropping items on summary rows caused a script error. ## 33.1.47 (2026-04-07) ### Tree Grid #### Bug Fixes - `#F73428` - Fixed an issue where expand and collapse functionality did not work after clearing filters in the TreeGrid. ## 33.1.46 (2026-03-31) ### Tree Grid #### Bug Fixes - `#F73428` - Fixed an expand and collapse issue in the TreeGrid URL adaptor when using a checkbox column. ## 33.1.45 (2026-03-24) ### Tree Grid #### Bug Fixes - `#F72915` - Fixed an issue where the duplicate records are added in the dataSource when adding record with `newRowPosition` as `Below`. - `#F73087` - Fixed an issue where, in Tree Grid with hierarchy mode set to "None", filtering records after collapsing all rows caused the filtered records to disappear and display a "No records to display" message when scrolling. - `#I820291` - Resolved an issue where undefined records were added to the TreeGrid data source after row drag and drop when child aggregates were enabled. - `#I820331` - Resolved an exception that occurred when dragging and dropping the child summary row. ## 33.1.44 (2026-03-16) ### Tree Grid #### Features - Introduced sticky header support in the Tree Grid, allowing column headers to stay fixed during scrolling. This improves navigation and readability in large hierarchical data views. Explore the demo [here](https://ej2.syncfusion.com/demos/#/tailwind3/tree-grid/sticky-header.html). - Enhanced support for `LoadChildOnDemand` in the Tree Grid with remote data binding and virtual scrolling. This improvement enables efficient, on-demand retrieval of child records, ensuring smoother performance when working with large hierarchical datasets. - Introduced sticky header support in the Tree Grid, allowing column headers to stay fixed during scrolling. This improves navigation and readability in large hierarchical data views. Explore the demo [here](https://ej2.syncfusion.com/angular/demos/#/tailwind3/treegrid/stickyheader). - Enhanced support for `LoadChildOnDemand` in the Tree Grid with remote data binding and virtual scrolling. This improvement enables efficient, on-demand retrieval of child records, ensuring smoother performance when working with large hierarchical datasets. ## 20.2.36 (2022-06-30) ### Tree Grid #### Features - Provided support for inline editing with virtualization enabled. Please find the demo [here](https://ej2.syncfusion.com/demos/#/bootstrap5/tree-grid/virtual-scrolling.html). - `#I323425`, `#I332700`, `#I344742`, `#I375307` - Provided support for frozen column with virtualization enabled. - `#I334966`, `#I373929`, `#I332693`, `#I342835`, `#F172606`, `#F171250`, `#F171248` - Provided row drag and drop support with virtualization feature enabled. - `#I367483` - Provided support for row indent and outdent functionality. Please find the demo link [here](https://ej2.syncfusion.com/angular/demos/#/bootstrap5/treegrid/inlineediting). ## 19.2.44 (2021-06-30) ### Tree Grid #### Bug Fixes - `#332604` - Resolved white space issue while using less number of records with Virtualization. - `#I329350` - Immutable mode works fine for date values and row reordering. - `#I329988`, `#I331155` - Editing a newly added child record works fine with self referential data. ## 18.4.30 (2020-12-17) ### Tree Grid #### New Features - `#294082` - Provided Immutable Support to refresh specific rows while perform Tree Grid actions. - `#283491` - Provided error handling support to easily rectify errors in sample side. - `#298682`, `#299561` - Added getVisibleRecords API to get the visible records based on collapsed rows state. #### Bug Fixes - `#F157882`- After editing the row using `updateRow` method, `getCurrentViewRecords` method updated properly. - `#F157882`- When editing with a double click, it works fine when we only have one record. - `#289600` - Records get expanded properly after collapsing all records using `collapseAtLevel` method in observable binding. - `#F157099` - Virtualization with Aggregates works fine with large number of records. - `#296233` - Row Drag and Drop within treegrid works fine. - `#297986` - Row Drag and drop within treegrid works fine with checkbox enabled. - `#F158886` - Cell editing with frozen columns works fine. - `#299761` - Treegrid column width renders fine in Internet Explorer when Virtualization is enabled. - `#301861` - Tree Grid dataSource updated properly while using setCellValue method. - `#F159697` - Order of child records are displayed correctly after editing in remote data binding. - `292453` - Treegrid refresh method works fine after updating the data. - `#289600` - Records get expanded properly after collapsing all records using `collapseAtLevel` method in observable binding. - `#F157099` - Virtualization with Aggregates works fine with large number of records. - `#297986` - Row Drag and drop within treegrid works fine with checkbox enabled. - `#F158886` - Cell editing with frozen columns works fine. - `#F159697` - Order of child records are displayed correctly after editing in remote data binding. ## 18.3.35 (2020-10-01) ### TreeGrid #### Bug Fixes - `#F157258` - `updateRow` method works fine for updating collapsed data. - `#292933` - checkbox rendered properly while using the template column. - `#289685` - Aggregate Column Formatting is working fine - `#288542` - The Expand / Collapse icon has been rendered properly while enabling expand state mapping and adding a new record. - `#287235` - While enabling expand state mapping the Expand / Collapse icon works fine at nested child levels. - `#285434`- Column SortComparer function works fine with null values for RemoteSaveAdaptor datasource. - `#284987`- Records rendered properly while using remote save adaptor in created event. - `#285434`- Column SortComparer function works fine with null values in datasource. - `#F155077`- Records rendered properly while using remote data with jQuery unobtrusive library. - `#F157258` - `updateRow` method works fine for updating collapsed data. ## 18.2.44 (2020-07-07) ### TreeGrid #### Bug Fixes - `#279109` - Checkbox checked properly for child records in remote data. - `#277364`, `#279732` - Checkbox with `allowRowDragAndDrop` property rendered properly after editing and cancelling in cell edit mode. - `#277364` - Checkbox with `autoCheckHierarchy` property rendered properly after editing and cancelling in cell edit mode. - `#278266` - Edit type `dropdownedit` is working properly in cell edit mode when enter key is pressed. - `#272026` - `updateRow` method works fine for updating treegrid data source. - `#273309` - Editing the zeroth level added record works fine in Batch mode. - `#277361` - Auto generated columns work fine when two treegrids are rendered on the same page. - `F153495` - Sorting after editing is working fine with cell edit mode. - `#266963`- Drag and drop works fine in unordered list of data. - `#F151795` - Localization support works fine in Add row, Above, Below Context Menu Items. - `#F151795`- In Drag and drop, while dropping at first row, its border color is changed properly. #### New Features - `#258863`, `#271677` - Expand & Collapse child rows support has been provided in Excel Export. - Columnchooser support has been provided that allows user to show or hide columns dynamically. - Provided support for Editing with Virtualization feature. #### Breaking Changes - Now `data`, `row` these Tree Grid selection event arguments are get array values only when we perform multi selection. Please find modified event arguments and it types from the below table, `Properties` |`Type` -----|----- `data` | `Object or Object[]` `rowIndex` | `number` `rowIndexes` | `number[]` `row` | `Element or Element[]` ## 17.4.39 (2019-12-17) ### TreeGrid #### New Features - AutoFill support has been provided that allows users to copy the data of selected cells and paste it to another cells by dragging. #### Breaking Changes - Default value of column's `disableHtmlEncode` is set to true, so the HTML tags can be displayed in the Grid header and content by default. To display it as html content `disableHtmlEncode` need to be set as false. #### Bug Fixes - `#148913` - Expand icon displays properly for the nested records in Custom Data Binding. ## 17.2.48-beta (2019-08-28) ### TreeGrid #### New Features - Checkbox selection support has been provided that allows users to select rows using checkbox. - Checkbox Column support has been provided that allows users to check rows using checkbox in treegrid column. #### Bug Fixes - Change detection for properties `dataSource` and `query` were handled for remote data. - Edited records can be searched/filtered. - Inner level records will be collapsed/expanded after filtering/searching actions. ## 17.1.1-beta (2019-01-29) ### TreeGrid #### Bug Fixes - `Query` maintenance support provided for `refresh` method after expanding any child rows. - Property change support for `height` property has been provided. - Expand icon is prevented from displaying for the root/zeroth level record which has `hasChildMapping` field as false. - Child records of third level or its successor displays properly based on their hierarchy relation in self reference data binding. - Expand icon is prevented from displaying for the root/zeroth level record which has `hasChildMapping` field as false. #### New Features - `Excel-Like Filtering` support is provided that allows users to create complex filter criteria for a column by allowing users to select possible filter values from a checkbox list. The advanced filter can be used to build complex filter criteria. ## 16.4.45 (2019-01-02) ### TreeGrid #### Bug Fixes - Added events for the column menu feature and added `columnMenuItems` API to modify the column menu items in column menu. - Added `sortComparer` API to perform custom sorting in TreeGrid. ## 16.4.44 (2018-12-24) ### TreeGrid #### Bug Fixes - Expanding and Collapsing records is working fine when `pageSizeMode` is set as `All`. - `expandAtLevel`, `collapseAtLevel`, `expandAll` and `collapseAll` methods are working fine when `pageSizeMode` is set as `All`.- `actionBegin`, `actionComplete` and `actionFailure` events are triggered properly. - Additional parameters that are added using the `query` property of TreeGrid are passed to the server side when a parent record is expanded.## 19.1.54 (2021-03-30) ### Tree Grid #### Bug Fixes - `#332604` - Resolved white space issue while using less number of records with Virtualization.