fix(grid): add null check for activeNode

ddaribo · ddaribo · commit b00dca1757a8 · 2025-11-26T11:21:02.000+02:00
diff --git a/projects/igniteui-angular/grids/core/src/headers/grid-header-group.component.ts b/projects/igniteui-angular/grids/core/src/headers/grid-header-group.component.ts
@@ -151,7 +151,7 @@ export class IgxGridHeaderGroupComponent implements DoCheck {
      * @hidden
      */
     public get ariaHidden(): boolean {
-        return this.grid.hasColumnGroups && (this.column.hidden || this.grid.navigation.activeNode.row !== -1);
+        return this.grid.hasColumnGroups && (this.column.hidden || this.grid.navigation.activeNode?.row !== -1);
     }
 
     /**
diff --git a/projects/igniteui-angular/grids/core/src/headers/grid-header-row.component.ts b/projects/igniteui-angular/grids/core/src/headers/grid-header-row.component.ts
@@ -123,7 +123,7 @@ export class IgxGridHeaderRowComponent implements DoCheck {
     * @internal
     */
     public get isLeafHeaderAriaHidden(): boolean {
-        return this.grid.navigation.activeNode.row === -1;
+        return this.grid.navigation.activeNode?.row === -1;
     }
 
     /** The virtualized part of the header row containing the unpinned header groups. */

Original file line number	Diff line number	Diff line change
`@@ -151,7 +151,7 @@ export class IgxGridHeaderGroupComponent implements DoCheck {`
`151`	`151`	`* @hidden`
`152`	`152`	`*/`
`153`	`153`	`public get ariaHidden(): boolean {`
`154`		`- return this.grid.hasColumnGroups && (this.column.hidden \|\| this.grid.navigation.activeNode.row !== -1);`
	`154`	`+ return this.grid.hasColumnGroups && (this.column.hidden \|\| this.grid.navigation.activeNode?.row !== -1);`
`155`	`155`	`}`
`156`	`156`
`157`	`157`	`/**`
Original file line number	Diff line number	Diff line change
`@@ -123,7 +123,7 @@ export class IgxGridHeaderRowComponent implements DoCheck {`
`123`	`123`	`* @internal`
`124`	`124`	`*/`
`125`	`125`	`public get isLeafHeaderAriaHidden(): boolean {`
`126`		`- return this.grid.navigation.activeNode.row === -1;`
	`126`	`+ return this.grid.navigation.activeNode?.row === -1;`
`127`	`127`	`}`
`128`	`128`
`129`	`129`	`/** The virtualized part of the header row containing the unpinned header groups. */`