MeterVision_v3/MeterVision/Helper/BulkObservableCollection.cs

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MeterVision.Helper
{
    public class BulkObservableCollection<T> : ObservableCollection<T>
    {
        public void AddRange(IEnumerable<T> items)
        {
            foreach (var item in items)
            {
                Items.Add(item);
            }
            OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
        }
    }
    ///-----------------------
}