36 lines
865 B
C#
36 lines
865 B
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Collections.ObjectModel;
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using System.Collections.Specialized;
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namespace Microsoft.Research.DynamicDataDisplay.Common.Auxiliary
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{
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internal static class ObservableCollectionHelper
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{
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public static void ApplyChanges<T>(this ObservableCollection<T> collection, NotifyCollectionChangedEventArgs args)
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{
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if (args.NewItems != null)
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{
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int startingIndex = args.NewStartingIndex;
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var newItems = args.NewItems;
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for (int i = 0; i < newItems.Count; i++)
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{
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T addedItem = (T)newItems[i];
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collection.Insert(startingIndex + i, addedItem);
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}
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}
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if (args.OldItems != null)
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{
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for (int i = 0; i < args.OldItems.Count; i++)
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{
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T removedItem = (T)args.OldItems[i];
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collection.Remove(removedItem);
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}
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}
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}
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}
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}
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