Merge pull request #5806 from IgniteUI/tzhelev/fix-5805

Select all list items when clearing filter through ESF instead of recreating them - 8.2.x

Author: zdrawku

projects/igniteui-angular/src/lib/grids/filtering/excel-style/excel-style-search.component.ts

@@ -41,8 +41,8 @@ export class IgxExcelStyleSearchComponent implements AfterViewInit {
 
     public set isLoading(value: boolean) {
         this._isLoading = value;
-        if (!(this._cdr as any).destroyed) {
-            this._cdr.detectChanges();
+        if (!(this.cdr as any).destroyed) {
+            this.cdr.detectChanges();
         }
     }
 
@@ -79,7 +79,7 @@ export class IgxExcelStyleSearchComponent implements AfterViewInit {
         }
     }
 
-    constructor(private _cdr: ChangeDetectorRef) { }
+    constructor(public cdr: ChangeDetectorRef) { }
 
     public ngAfterViewInit() {
         this.refreshSize();

projects/igniteui-angular/src/lib/grids/filtering/excel-style/grid.excel-style-filtering.component.ts

@@ -565,6 +565,14 @@ export class IgxGridExcelStyleFilteringComponent implements OnDestroy, OnInit, A
         }
     }
 
+    private selectAllFilterItems() {
+        this.listData.forEach(filterListItem => {
+            filterListItem.isSelected = true;
+            filterListItem.indeterminate = false;
+        });
+        this.excelStyleSearch.cdr.detectChanges();
+    }
+
     // TODO: sort members by access modifier
 
     get sortingTemplate() {
@@ -681,7 +689,7 @@ export class IgxGridExcelStyleFilteringComponent implements OnDestroy, OnInit, A
 
     public clearFilter() {
         this.filteringService.clearFilter(this.column.field);
-        this.populateColumnData();
+        this.selectAllFilterItems();
     }
 
     public onClearFilterKeyDown(eventArgs) {