fix OData service incorrect total item in pagination

Author: Ghislain Beaulac

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-slickgrid",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "Slickgrid components made available in Angular",
   "keywords": [
     "angular",

src/app/modules/angular-slickgrid/components/angular-slickgrid.component.ts

@@ -301,7 +301,9 @@ export class AngularSlickgridComponent implements AfterViewInit, OnDestroy, OnIn
         if (!this.gridOptions.pagination) {
           this.gridOptions.pagination = (this._gridOptions.pagination) ? this._gridOptions.pagination : null;
         }
-        this.gridOptions.pagination.totalItems = totalCount || dataset.length;
+        if (this.gridOptions.pagination && totalCount) {
+          this.gridOptions.pagination.totalItems = totalCount;
+        }
         this.gridPaginationOptions = this.mergeGridOptions();
       }
       if (this.grid &&  this._gridOptions.enableAutoResize) {