fix(pivot): added IgxPivotGridRow class

Author: tishko0

projects/igniteui-angular/src/lib/grids/grid-public-row.ts

@@ -791,3 +791,28 @@ export class IgxSummaryRow implements RowType {
         return row;
     }
 }
+
+export class IgxPivotGridRow extends BaseRow {
+   /**
+     * @hidden
+     */
+    constructor(
+        public override grid: GridType,
+        public override index: number, data?: any
+    ) {
+        super();
+        this._data = data && data.addRow && data.recordRef ? data.recordRef : data;
+    }
+
+    /**
+     * Gets the rendered cells in the row component.
+     */
+    public override get cells(): CellType[] {
+        const res: CellType[] = [];
+        this.grid.columns.forEach(col => {
+            const cell: CellType = new IgxGridCell(this.grid, this.index, col);
+            res.push(cell);
+        });
+        return res;
+    }
+}

projects/igniteui-angular/src/lib/grids/pivot-grid/pivot-grid.component.ts

@@ -102,7 +102,7 @@ import { IgxTextHighlightService } from '../../directives/text-highlight/text-hi
 import { IgxPivotRowHeaderGroupComponent } from './pivot-row-header-group.component';
 import { IgxPivotDateDimension } from './pivot-grid-dimensions';
 import { IgxPivotRowDimensionMrlRowComponent } from './pivot-row-dimension-mrl-row.component';
-import { IgxGridRow } from '../grid-public-row';
+import { IgxPivotGridRow } from '../grid-public-row';
 
 let NEXT_ID = 0;
 const MINIMUM_COLUMN_WIDTH = 200;
@@ -2526,7 +2526,7 @@ export class IgxPivotGridComponent extends IgxGridBaseDirective implements OnIni
 
 
         if (!row && rec) {
-            row = new IgxGridRow(this, index, rec);
+            row = new IgxPivotGridRow(this, index, rec);
         }
         return row;
     }