Merge branch 'master' into dmdimitrov/fix-10391-master

Author: zdrawku

CHANGELOG.md

@@ -50,6 +50,8 @@ All notable changes for each version of this project will be documented in this
     - Added `groupSortingDirection` input, which allows you to set groups sorting order.
 - `IgxGrid`, `IgxTreeGrid`, `IgxHierarchicalGrid`
     - Added new directives for re-templating header sorting indicators - `IgxSortHeaderIconDirective`, `IgxSortAscendingHeaderIconDirective` and `IgxSortDescendingHeaderIconDirective`.
+- `IgxGrid`
+    - Exposed a `groupStrategy` input that functions similarly to `sortStrategy`, allowing customization of the grouping behavior of the grid. Please, refer to the [Group By ](https://www.infragistics.com/products/ignite-ui-angular/angular/components/grid/groupby) topic for more information.
 - `IgxDialog`
     - Added `focusTrap` input to set whether the Tab key focus is trapped within the dialog when opened. Defaults to `true`.
 
@@ -101,8 +103,6 @@ All notable changes for each version of this project will be documented in this
         ```
     - `IgxColumnActionsComponent`
         - **Breaking Change** -  Input `columns` has been removed. Use `igxGrid` `columns` input instead.
-    - `igxGrid`
-    - Exposed a `groupStrategy` input that functions similarly to `sortStrategy`, allowing customization of the grouping behavior of the grid. Please, refer to the [Group By ](https://www.infragistics.com/products/ignite-ui-angular/angular/components/grid/groupby) topic for more information.
 - `IgxCarousel`
     - **Breaking Changes** - The carousel animation type `CarouselAnimationType` is renamed to `HorizontalAnimationType`.
 

projects/igniteui-angular/src/lib/grids/grid-base.directive.ts

@@ -5764,7 +5764,7 @@ export abstract class IgxGridBaseDirective extends DisplayDensityBase implements
      * @hidden @internal
      */
     public isSummaryRow(rowData): boolean {
-        return rowData.summaries && (rowData.summaries instanceof Map);
+        return rowData && rowData.summaries && (rowData.summaries instanceof Map);
     }
 
     /**

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

@@ -598,7 +598,7 @@ export class IgxGridComponent extends IgxGridBaseDirective implements GridType,
      * @hidden @internal
      */
     public isDetailRecord(record) {
-        return record.detailsData !== undefined;
+        return record && record.detailsData !== undefined;
     }
 
     /**