Merge pull request #8434 from IgniteUI/mdragnev/fix-8426

fix(addRow): Fix keyboard combination for IE and Edge

Author: ChronosSF

projects/igniteui-angular/src/lib/core/utils.ts

@@ -328,7 +328,7 @@ export const NAVIGATION_KEYS = new Set([
 ]);
 export const ROW_EXPAND_KEYS = new Set('right down arrowright arrowdown'.split(' '));
 export const ROW_COLLAPSE_KEYS = new Set('left up arrowleft arrowup'.split(' '));
-export const SUPPORTED_KEYS = new Set([...Array.from(NAVIGATION_KEYS), 'enter', 'f2', 'escape', 'esc', 'pagedown', 'pageup', '+']);
+export const SUPPORTED_KEYS = new Set([...Array.from(NAVIGATION_KEYS), 'enter', 'f2', 'escape', 'esc', 'pagedown', 'pageup', '+', 'add']);
 export const HEADER_KEYS = new Set([...Array.from(NAVIGATION_KEYS), 'escape', 'esc' , 'l']);
 
 /**

projects/igniteui-angular/src/lib/grids/grid-navigation.service.ts

@@ -51,7 +51,6 @@ export class IgxGridNavigationService {
             !this.grid.crudService.rowEditingBlocked && !this.grid.rowInEditMode) { return; }
         const shift = event.shiftKey;
         const ctrl = event.ctrlKey;
-        const alt = event.altKey;
         if (NAVIGATION_KEYS.has(key) && this.pendingNavigation) { event.preventDefault(); return; }
 
         const type = this.isDataRow(this.activeNode.row) ? 'dataCell' :
@@ -631,6 +630,6 @@ export class IgxGridNavigationService {
     }
 
     private isAddKey(key: string): boolean {
-        return key === '+';
+        return key === '+' || key === 'add'; // add is for IE and Edge
     }
 }