As mentioned in following document
Developing-Step-By-Step-Angular-DevExtreme-Using-GetPeople-Method-from-Angular
this.dataSource = new CustomStore({
key: "id",
load: (loadOptions) => {
return this._personService.getPeople("").toPromise();
}
});
the getPeople("") has no parameter. when I change it to getPeople(loadOptions) then I get null reference in DataSourceLoadOptions in Back-End. While testing I just ignored the generated proxy and sent it by http and now it works.
Is there something that I should do?