refactor(core): set _page variable initial value to 0

resolves #4224

npm/ng-packs/packages/core/src/lib/services/list.service.ts

@@ -26,7 +26,7 @@ export class ListService implements OnDestroy {
     return this._maxResultCount;
   }
 
-  private _page = 1;
+  private _page = 0;
   set page(value: number) {
     this._page = value;
     this.get();
@@ -71,7 +71,7 @@ export class ListService implements OnDestroy {
     this._query$.next({
       filter: this._filter || undefined,
       maxResultCount: this._maxResultCount,
-      skipCount: (this._page - 1) * this._maxResultCount,
+      skipCount: this._page * this._maxResultCount,
       sorting: this._sortOrder ? `${this._sortKey} ${this._sortOrder}` : undefined,
     });
   };

npm/ng-packs/packages/identity/src/lib/components/roles/roles.component.html

@@ -27,9 +27,9 @@
       (sort)="sort($event)"
       [externalPaging]="true"
       [count]="totalCount$ | async"
-      [offset]="list.page - 1"
+      [offset]="list.page"
       [limit]="list.maxResultCount"
-      (page)="list.page = $event.offset + 1"
+      (page)="list.page = $event.offset"
       [headerHeight]="50"
       [footerHeight]="50"
       columnMode="force"

npm/ng-packs/packages/identity/src/lib/components/users/users.component.html

@@ -37,9 +37,9 @@
       (sort)="sort($event)"
       [externalPaging]="true"
       [count]="totalCount$ | async"
-      [offset]="list.page - 1"
+      [offset]="list.page"
       [limit]="list.maxResultCount"
-      (page)="list.page = $event.offset + 1"
+      (page)="list.page = $event.offset"
       [headerHeight]="50"
       [footerHeight]="50"
       columnMode="force"

npm/ng-packs/packages/tenant-management/src/lib/components/tenants/tenants.component.html

@@ -38,9 +38,9 @@
       (sort)="sort($event)"
       [externalPaging]="true"
       [count]="totalCount$ | async"
-      [offset]="list.page - 1"
+      [offset]="list.page"
       [limit]="list.maxResultCount"
-      (page)="list.page = $event.offset + 1"
+      (page)="list.page = $event.offset"
       [headerHeight]="50"
       [footerHeight]="50"
       columnMode="force"