35 lines
1.4 KiB
C#
35 lines
1.4 KiB
C#
using System;
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using System.Collections.Specialized;
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using System.Windows.Threading;
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namespace JD.Core
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{
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public class MultiThreadedObservableRangeCollection<T> : ObservableRangeCollection<T>
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{
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public override event NotifyCollectionChangedEventHandler CollectionChanged;
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protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs e)
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{
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var CollectionChanged = this.CollectionChanged;
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if (CollectionChanged != null)
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{
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foreach (NotifyCollectionChangedEventHandler nh in CollectionChanged.GetInvocationList())
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{
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var dispObj = nh.Target as DispatcherObject;
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if (dispObj != null)
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{
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var dispatcher = dispObj.Dispatcher;
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if (dispatcher != null && !dispatcher.CheckAccess())
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{
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dispatcher.BeginInvoke(
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(Action)(() => nh.Invoke(this,
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new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset))),
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DispatcherPriority.DataBind);
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continue;
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}
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}
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nh.Invoke(this, e);
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}
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}
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}
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}
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}
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