IgniteUI · ChronosSF · Feb 28, 2022 · Dec 21, 2021 · Jan 11, 2022 · Jan 11, 2022
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -15,6 +15,9 @@ All notable changes for each version of this project will be documented in this
 
     - For more information, check out the [README](https://github.com/IgniteUI/igniteui-angular/blob/master/projects/igniteui-angular/src/lib/grids/pivot-grid/README.md), [specification](https://github.com/IgniteUI/igniteui-angular/wiki/igxPivotGrid-Specification) and [official documentation](https://www.infragistics.com/products/ignite-ui-angular/angular/components/pivotgrid).
 
+- `IgxTreeGrid`
+    - Added support for tree filter items in the Excel Style filtering UI. Use the `TreeGridFilteringStrategy` constructor to specify which columns should display tree filter items.
+
 - `igxTooltipTarget` directive now allows specifying a plain text tooltip without adding an additional DOM element decorated with the `igxTooltip` directive. This is achieved via the newly introduced `tooltip` string input.
     ```html
     <button igxTooltipTarget [tooltip]="'Infragistics Inc. HQ'">
@@ -36,6 +39,7 @@ All notable changes for each version of this project will be documented in this
         <igx-column field="Age"></igx-column>
     </igx-grid>
    ```
+   - **Breaking Change** - `getFilterItems` method is added to the `IFilteringStrategy` interface. Using the new method you could retrieve either list or tree filter items to be displayed for a column in the Excel Style filtering UI. If you have your own implementation of the `IFilteringStrategy` interface, you will need to implement the new method. Otherwise, you could derive from the `BaseFilteringStrategy` class or any of its sub-classes, which already implement the new method.
    - Exposed `dataChanging` and `dataChanged` events for the three grids that are re-emits of the corresponding `IgxForOf` events. These indicate the beginning and end of the input change triggering the actual data re-rendering which happens each time the data view changes. This happens after changes in either the data the grid is bound or the state affecting the operations which alter this data (e.g. sorting, filtering, group-by).
    - Scrolling with the mouse wheel over cells with templates that include scrollable containers now correctly scroll these inner containers before the grid body scrolls.
 

diff --git a/projects/igniteui-angular-i18n/src/i18n/BG/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/BG/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsBG_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Булев филтър',
     igx_grid_excel_currency_filter: 'Филтър по валута',
     igx_grid_excel_custom_filter: 'Персонализиран филтър...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Разширено филтриране',
     igx_grid_advanced_filter_and_group: '"And" група',
     igx_grid_advanced_filter_or_group: '"Or" група',

diff --git a/projects/igniteui-angular-i18n/src/i18n/CS/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/CS/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsCS_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Booleovský filtr',
     igx_grid_excel_currency_filter: 'Filtr měn',
     igx_grid_excel_custom_filter: 'Vlastní filtr ...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Pokročilé filtrování',
     igx_grid_advanced_filter_and_group: '"A" skupina',
     igx_grid_advanced_filter_or_group: '"Nebo" skupina',

diff --git a/projects/igniteui-angular-i18n/src/i18n/DA/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/DA/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsDA_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Boolsk filter',
     igx_grid_excel_currency_filter: 'Valutafilter',
     igx_grid_excel_custom_filter: 'Brugerdefineret filter',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Avanceret filtrering',
     igx_grid_advanced_filter_and_group: '"Og" gruppe',
     igx_grid_advanced_filter_or_group: '"Eller" gruppe',

diff --git a/projects/igniteui-angular-i18n/src/i18n/DE/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/DE/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsDE_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Logischer Filter',
     igx_grid_excel_currency_filter: 'Währungs Filter',
     igx_grid_excel_custom_filter: 'Benutzerdefinierter Filter...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Erweiterte Filterung',
     igx_grid_advanced_filter_and_group: '"Und" Gruppe',
     igx_grid_advanced_filter_or_group: '"Oder" Gruppe',

diff --git a/projects/igniteui-angular-i18n/src/i18n/ES/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/ES/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsES_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtro booleano',
     igx_grid_excel_currency_filter: 'Filtro divisa',
     igx_grid_excel_custom_filter: 'Filtro personalizado...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Filtro Avanzado',
     igx_grid_advanced_filter_and_group: 'Grupo "Y"',
     igx_grid_advanced_filter_or_group: '"Grupo "O"',

diff --git a/projects/igniteui-angular-i18n/src/i18n/FR/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/FR/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsFR_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtre booléen',
     igx_grid_excel_currency_filter: 'Filtre devise',
     igx_grid_excel_custom_filter: 'Filtre personnalisé...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Filtrage avancé',
     igx_grid_advanced_filter_and_group: 'Groupe "Et"',
     igx_grid_advanced_filter_or_group: 'Groupe "Ou"',

diff --git a/projects/igniteui-angular-i18n/src/i18n/HU/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/HU/grid-resources.ts
@@ -90,6 +90,7 @@ const GridResourceStringsHU_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Logikai szűrő',
     igx_grid_excel_currency_filter: 'Pénznemszűrő',
     igx_grid_excel_custom_filter: 'Egyéni szűrő...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Speciális szűrés',
     igx_grid_advanced_filter_and_group: '"És" csoport',
     igx_grid_advanced_filter_or_group: '"Vagy" Csoport',

diff --git a/projects/igniteui-angular-i18n/src/i18n/IT/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/IT/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsIT_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtro booleano',
     igx_grid_excel_currency_filter: 'Filtro valuta',
     igx_grid_excel_custom_filter: 'Filtro personalizzato…',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Filtro avanzato',
     igx_grid_advanced_filter_and_group: 'Gruppo "And"',
     igx_grid_advanced_filter_or_group: 'Gruppo "Or"',

diff --git a/projects/igniteui-angular-i18n/src/i18n/JA/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/JA/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsJA_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'ブール値フィルター',
     igx_grid_excel_currency_filter: '通貨フィルター',
     igx_grid_excel_custom_filter: 'カスタム フィルター...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: '高度なフィルター',
     igx_grid_advanced_filter_and_group: '"And" グループ',
     igx_grid_advanced_filter_or_group: '"Or" グループ',

diff --git a/projects/igniteui-angular-i18n/src/i18n/KO/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/KO/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsKO_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: '불린 필터',
     igx_grid_excel_currency_filter: '통화 필터',
     igx_grid_excel_custom_filter: '사용자 필터...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: '고급 필터링',
     igx_grid_advanced_filter_and_group: '그룹 "그리고"',
     igx_grid_advanced_filter_or_group: '그룹 "또는"',

diff --git a/projects/igniteui-angular-i18n/src/i18n/NB/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/NB/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsNB_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Boolsk filter',
     igx_grid_excel_currency_filter: 'Valutafilter',
     igx_grid_excel_custom_filter: 'Tilpasset filter...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Avansert filtrering',
     igx_grid_advanced_filter_and_group: '"Og"-gruppe',
     igx_grid_advanced_filter_or_group: '"Eller"-gruppe',

diff --git a/projects/igniteui-angular-i18n/src/i18n/NL/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/NL/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsNL_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Booleaans filter',
     igx_grid_excel_currency_filter: 'Valutafilter',
     igx_grid_excel_custom_filter: 'Aangepast filter ...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Geavanceerd filteren',
     igx_grid_advanced_filter_and_group: 'En-groep',
     igx_grid_advanced_filter_or_group: 'Of-groep',

diff --git a/projects/igniteui-angular-i18n/src/i18n/PL/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/PL/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsPL_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtr logiczny',
     igx_grid_excel_currency_filter: 'Filtr walutowy',
     igx_grid_excel_custom_filter: 'Filtr niestandardowy...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Zaawansowane filtrowanie',
     igx_grid_advanced_filter_and_group: '"I" grupuj',
     igx_grid_advanced_filter_or_group: '"Lub" grupuj',

diff --git a/projects/igniteui-angular-i18n/src/i18n/PT/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/PT/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsPT_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtro booleano',
     igx_grid_excel_currency_filter: 'Filtro de moeda',
     igx_grid_excel_custom_filter: 'Filtro personalizado...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Filtragem avançada',
     igx_grid_advanced_filter_and_group: '"E" grupo',
     igx_grid_advanced_filter_or_group: '"Ou" grupo',

diff --git a/projects/igniteui-angular-i18n/src/i18n/RO/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/RO/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsRO_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Filtru boolean',
     igx_grid_excel_currency_filter: 'Filtru valutar',
     igx_grid_excel_custom_filter: 'Filtru customizat...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Filtrare avansată',
     igx_grid_advanced_filter_and_group: '"Și" Grup',
     igx_grid_advanced_filter_or_group: '"Sau" grup',

diff --git a/projects/igniteui-angular-i18n/src/i18n/SV/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/SV/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsSV_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Booleskt filter',
     igx_grid_excel_currency_filter: 'Valutafilter',
     igx_grid_excel_custom_filter: 'Anpassat filter ...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Avancerad filtrering',
     igx_grid_advanced_filter_and_group: '"Och" -grupp',
     igx_grid_advanced_filter_or_group: '"Eller" -grupp',

diff --git a/projects/igniteui-angular-i18n/src/i18n/TR/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/TR/grid-resources.ts
@@ -89,6 +89,7 @@ const GridResourceStringsTR_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: 'Boole filtresi',
     igx_grid_excel_currency_filter: 'Para birimi filtresi',
     igx_grid_excel_custom_filter: 'Özel filtre...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Gelişmiş Filtreleme',
     igx_grid_advanced_filter_and_group: '"Ve" Grubu',
     igx_grid_advanced_filter_or_group: '"Veya" Grubu',

diff --git a/projects/igniteui-angular-i18n/src/i18n/ZH-HANS/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/ZH-HANS/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsZHHANS_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: '布尔筛选器',
     igx_grid_excel_currency_filter: '货币筛选器',
     igx_grid_excel_custom_filter: '自定义筛选器...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: '高级筛选',
     igx_grid_advanced_filter_and_group: '"And" 组',
     igx_grid_advanced_filter_or_group: '"Or" 组',

diff --git a/projects/igniteui-angular-i18n/src/i18n/ZH-HANT/grid-resources.ts b/projects/igniteui-angular-i18n/src/i18n/ZH-HANT/grid-resources.ts
@@ -87,6 +87,7 @@ const GridResourceStringsZHHANT_: ExpandRequire<IGridResourceStrings> = {
     igx_grid_excel_boolean_filter: '布林值篩選條件',
     igx_grid_excel_currency_filter: '貨幣篩選條件',
     igx_grid_excel_custom_filter: '自訂篩選條件...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: '進階篩選',
     igx_grid_advanced_filter_and_group: '“And” 群組',
     igx_grid_advanced_filter_or_group: '“Or” 群組',

diff --git a/projects/igniteui-angular/src/lib/core/i18n/grid-resources.ts b/projects/igniteui-angular/src/lib/core/i18n/grid-resources.ts
@@ -86,6 +86,7 @@ export interface IGridResourceStrings {
     igx_grid_excel_boolean_filter?: string;
     igx_grid_excel_currency_filter?: string;
     igx_grid_excel_custom_filter?: string;
+    igx_grid_excel_no_matches?: string;
     igx_grid_advanced_filter_title?: string;
     igx_grid_advanced_filter_and_group?: string;
     igx_grid_advanced_filter_or_group?: string;
@@ -244,6 +245,7 @@ export const GridResourceStringsEN: IGridResourceStrings = {
     igx_grid_excel_boolean_filter: 'Boolean filter',
     igx_grid_excel_currency_filter: 'Currency filter',
     igx_grid_excel_custom_filter: 'Custom filter...',
+    igx_grid_excel_no_matches: 'No matches',
     igx_grid_advanced_filter_title: 'Advanced Filtering',
     igx_grid_advanced_filter_and_group: '"And" Group',
     igx_grid_advanced_filter_or_group: '"Or" Group',

diff --git a/...ects/igniteui-angular/src/lib/core/styles/components/grid/_excel-filtering-component.scss b/...ects/igniteui-angular/src/lib/core/styles/components/grid/_excel-filtering-component.scss
@@ -17,6 +17,22 @@
             @extend %igx-excel-filter__loading !optional;
         }
 
+        @include e(tree) {
+            @extend %igx-excel-filter__tree !optional;
+        }
+
+        @include e(empty) {
+            @extend %igx-excel-filter__empty !optional;
+        }
+
+        @include e(tree-alike) {
+            @extend %igx-excel-filter__tree-alike !optional;
+        }
+
+        @include e(tree-alike-item) {
+            @extend %igx-excel-filter__tree-alike-item !optional;
+        }
+
         @include e(menu) {
             @extend %grid-excel-menu !optional;
         }