Merge pull request #3423 from IgniteUI/thristodorova/fix-3420

fix(grid): remove crud service from excel style editing sample

Author: kacheshmarova

src/app/grid/grid-editing-excel-style/grid-editing-excel-style.component.ts

@@ -38,8 +38,8 @@ export class GridExcelStyleEditingComponent implements OnInit {
 
         const columnName = grid.getColumnByVisibleIndex(activeElem.column).field;
         const cell = grid.getCellByColumn(activeElem.row, columnName);
-        if (cell && !grid.crudService.cellInEditMode) {
-          grid.crudService.enterEditMode(cell);
+        if (cell && !cell.editMode) {
+          cell.editMode = true;
           cell.editValue = event.key;
           this.shouldAppendValue = true;
         } else if (cell && cell.editMode && this.shouldAppendValue) {