Correcting column selection in list compoenent

front/app/src/app/views/entities/entities.component.ts

@@ -8,9 +8,10 @@ export class BaseEntitiesComponent {
 }
 
 @Component({
-  template: '<crud-list [resource]="this.resource" [schema]="this.schema"></crud-list>'
+  template: '<crud-list [resource]="this.resource" [schema]="this.schema" [columns]="this.columns"></crud-list>'
 })
-export class EntityListComponent extends BaseEntitiesComponent{
+export class EntityListComponent extends BaseEntitiesComponent {
+  columns = ['label', 'address', 'entity_data.type']
 }
 
 @Component({

front/app/src/common/crud/list/list.component.ts

@@ -50,7 +50,7 @@ export class ListComponent implements OnInit {
                     }
                 }
             } else {
-                for (let column in this.columns) {
+                for (let column of this.columns) {
                     if (column in schemas.properties) {
                         this.displayedColumns.push(column);
                     }