Merge branch 'ddincheva/focuslessKBNav' of https://github.com/IgniteUI/igniteui-angular into ddincheva/focuslessKBNav

Author: nrobakova

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

@@ -256,10 +256,10 @@ export class IgxGridNavigationService {
         if (!this.isToggleKey(key) || !row) { return; }
 
         if (!row.expanded && ROW_EXPAND_KEYS.has(key)) {
-            !row.rowID ? row.toggle() :
+            row.rowID === undefined ? row.toggle() :
                 this.grid.gridAPI.set_row_expansion_state(row.rowID, true, event);
         } else if (row.expanded && ROW_COLLAPSE_KEYS.has(key)) {
-            !row.rowID ? row.toggle() :
+            row.rowID === undefined ? row.toggle() :
                 this.grid.gridAPI.set_row_expansion_state(row.rowID, false, event);
         }
         this.grid.notifyChanges();

projects/igniteui-angular/src/lib/grids/grid/grid.component.html

@@ -227,7 +227,7 @@
     <div class="igx-grid__scroll-end" [style.float]='"right"' [style.width.px]='pinnedWidth' [style.min-width.px]='pinnedWidth' [hidden]="pinnedWidth === 0 || isPinningToStart"></div>
 </div>
 
-<div class="igx-grid__footer" tabindex="0" #footer>
+<div class="igx-grid__footer" #footer>
     <ng-content select="igx-grid-footer"></ng-content>
     <ng-container *ngIf="paging && totalRecords">
         <ng-container

projects/igniteui-angular/src/lib/grids/hierarchical-grid/hierarchical-grid.component.html

@@ -158,7 +158,7 @@
     <div class="igx-grid__scroll-end" [style.float]='"right"' [style.width.px]='pinnedWidth' [style.min-width.px]='pinnedWidth' [hidden]="pinnedWidth === 0 || isPinningToStart"></div>
 </div>
 
-<div class="igx-grid__footer" tabindex="0" #footer>
+<div class="igx-grid__footer" #footer>
     <ng-content select="igx-grid-footer"></ng-content>
     <ng-container *ngIf="paging && totalRecords">
         <ng-container

projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.html

@@ -133,7 +133,7 @@
     <div class="igx-grid__scroll-end" [style.float]='"right"' [style.width.px]='pinnedWidth' [style.min-width.px]='pinnedWidth' [hidden]="pinnedWidth === 0 || isPinningToStart"></div>
 </div>
 
-<div class="igx-grid__footer" tabindex="0" #footer>
+<div class="igx-grid__footer" #footer>
     <ng-content select="igx-grid-footer"></ng-content>
     <ng-container *ngIf="paging && totalRecords">
         <ng-container