Merge pull request #10189 from IgniteUI/rkaraivanov/summaries-setter-11

fix(grid): Check summary reference
IgniteUI · Sep 27, 2021 · 71f6c6e · 71f6c6e
2 parents 50a18ea + 770a721
commit 71f6c6e
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/projects/igniteui-angular/src/lib/core/utils.ts b/projects/igniteui-angular/src/lib/core/utils.ts
@@ -509,6 +509,8 @@ export const yieldingLoop = (count: number, chunkSize: number, callback: (index:
     chunk();
 };
 
+export const isConstructor = (ref: any) => typeof ref === 'function' && Boolean(ref.prototype) && Boolean(ref.prototype.constructor);
+
 export const mkenum = <T extends { [index: string]: U }, U extends string>(x: T) => x;
 
 export const reverseAnimationResolver = (animation: AnimationReferenceMetadata): AnimationReferenceMetadata =>

diff --git a/projects/igniteui-angular/src/lib/grids/columns/column.component.ts b/projects/igniteui-angular/src/lib/grids/columns/column.component.ts
@@ -34,7 +34,7 @@ import { GridType } from '../common/grid.interface';
 import { IgxGridHeaderComponent } from '../headers/grid-header.component';
 import { IgxGridFilteringCellComponent } from '../filtering/base/grid-filtering-cell.component';
 import { IgxGridHeaderGroupComponent } from '../headers/grid-header-group.component';
-import { getNodeSizeViaRange } from '../../core/utils';
+import { getNodeSizeViaRange, isConstructor } from '../../core/utils';
 import { IgxSummaryOperand, IgxNumberSummaryOperand, IgxDateSummaryOperand,
     IgxCurrencySummaryOperand, IgxPercentSummaryOperand } from '../summaries/grid-summary';
 import {
@@ -954,7 +954,9 @@ export class IgxColumnComponent implements AfterContentInit, OnDestroy {
      * @memberof IgxColumnComponent
      */
     public set summaries(classRef: any) {
-        this._summaries = new classRef();
+        if (isConstructor(classRef)) {
+            this._summaries = new classRef();
+        }
 
         if (this.grid) {
             this.grid.summaryService.removeSummariesCachePerColumn(this.field);