How to implement ISupportIncrementalLoading

yudi — Thu, 20 Oct 2016 02:45:51 GMT

Sorry for the delay in sending this.

I’m currently still investigating this issue and need more time to provide you with solution, suggestion, or sample.

I’ll get back to you as soon as possible.

How to implement ISupportIncrementalLoading

gabriel — Fri, 14 Oct 2016 20:00:47 GMT

I wonder how I can implement ISupportRefresh because I followed the documentation (http://developer.intersoftsolutions.com/display/crosslight/Displaying+Data#DisplayingData-ImplementingIncrementalLoading), but could not implement the HasMoreItems and also could not implement the limit data,, someone could help me how I can do this.

Follow my ViewModel and my controller.

my viewmodel

public class PersonListViewModel:ListViewModelBase<Person>, ISupportIncrementalLoading, ISupportRefresh
    {
        private bool _isDataLoading;
        private bool _enableIncrementalLoading;
        private bool _enableIncrementalRefresh;
        private bool _enableRefresh;
        WebApi rest;
       public PersonListViewModel()
        {
            rest = new WebApi();



            this.EnableIncrementalLoading = true;
            this.EnableAsyncFilter = true;
            this.EnableRefresh = true;
            LoadDataIncremental();
        }

        public bool EnableIncrementalLoading
        {
            get
            {
                return _enableIncrementalLoading;
            }

            set
            {
                if (_enableIncrementalLoading != value)
                {
                    _enableIncrementalLoading = value;
                    OnPropertyChanged("EnableIncrementalLoading");

                }
            }
        }



        public bool IsDataLoading
        {
            get
            {
                return _isDataLoading;
            }
            set
            {
                if (_isDataLoading != value)
                {
                    _isDataLoading = value;
                    OnPropertyChanged("IsDataLoading");
                }
            }
        }

        public async void LoadDataIncremental()
        {
            this.IsDataLoading = true;

            this.SourceItems = await rest.GetPersons();

            this.IsDataLoading = false;

        }

        public bool EnableIncrementalRefresh
        {
            get
            {
                return _enableIncrementalRefresh;
            }
            set
            {
                if (_enableIncrementalRefresh != value)
                {
                    _enableIncrementalRefresh = value;
                    OnPropertyChanged("EnableIncrementalRefresh");
                }
            }
        }

        public bool EnableRefresh
        {
            get
            {
                return _enableRefresh;
            }
            set
            {
                if (_enableRefresh != value)
                {
                    _enableRefresh = value;
                    OnPropertyChanged("EnableRefresh");
                }
            }
        }

        public bool HasMoreItems
        {
            get
            {
                throw new NotImplementedException();
            }
        }



        public async void RefreshData()
        {
            this.IsDataLoading = true;
            this.SourceItems = await rest.GetPersons();

            this.IsDataLoading = false;
        }
        protected override void ExecuteRefresh(object parameter)
        {
            base.ExecuteRefresh(parameter);
            this.RefreshData();
        }
    }

my controller

 public class PersonsController : ApiController
    {
        private DBEntities db = new DBEntities();

        // GET: api/Persons
        public IQueryable<Person> GetPersons()
        {
            return db.Persons.Take(20);
        }
}

Intersoft Community - Crosslight - How to implement ISupportIncrementalLoading

How to implement ISupportIncrementalLoading

How to implement ISupportIncrementalLoading