fix(RowSelection): select all correctly when there is row pinning &groupBy #7600

Author: ddincheva

projects/igniteui-angular/src/lib/grids/selection/selection.service.ts

@@ -729,8 +729,12 @@ export class IgxGridSelectionService {
 
     /** Returns all data in the grid, with applied filtering and sorting and without deleted rows. */
     public get allData(): Array<any> {
-        const allData = this.isFilteringApplied() || this.grid.sortingExpressions.length ?
-            this.grid.filteredSortedData : this.grid.gridAPI.get_all_data(true);
+        let  allData;
+        if (this.isFilteringApplied() || this.grid.sortingExpressions.length) {
+            allData = this.grid.pinnedRecordsCount ? this.grid._filteredSortedUnpinnedData : this.grid.filteredSortedData;
+        } else {
+            allData = this.grid.gridAPI.get_all_data(true);
+        }
         return allData.filter(rData => !this.isRowDeleted(this.grid.gridAPI.get_row_id(rData)));
     }
 

src/app/grid-row-pinning/grid-row-pinning.sample.html

@@ -20,7 +20,7 @@
             </div>
             <igx-grid [rowEditable]="true" [igxGridState]="options" [allowFiltering]='true' [primaryKey]='"ID"' [pinning]="pinningConfig" [paging]="true"
                 [columnHiding]='true' [showToolbar]='true' [columnPinning]='true' #grid1 [data]="data" [width]="'800px'"
-                [height]="'600px'" [rowSelection]="true">
+                [height]="'600px'" [rowSelection]="'multiple'">
 
                 <ng-template igxGridDetail let-dataItem>
                     <div>