After one or more of my underlying items of my DataSource has changed, I call ResetBinding( false ) on the datasource so the grid can refresh its content. From times to times, I get the following exception:

   Cannot perform this operation while the generator is busy generating items

 Here is the detail of the exception

System.InvalidOperationException = Cannot perform this operation while the generator is busy generating items
   Message = Cannot perform this operation while the generator is busy generating items
   Exception's Data
      Message = Cannot perform this operation while the generator is busy generating items
      (Dictionary with 0 entrie(s))
      TargetSite = Void OnItemsChanged(System.Object, System.Collections.Specialized.NotifyCollectionChangedEventArgs)
      Source = Xceed.Wpf.DataGrid
   Stack Trace =    at Xceed.Wpf.DataGrid.CustomItemContainerGenerator.OnItemsChanged(Object sender, NotifyCollectionChangedEventArgs e)
      at Xceed.Wpf.DataGrid.CustomItemContainerGenerator.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
      at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
      at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
      at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
      at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
      at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
      at System.Windows.Controls.ItemCollection.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
      at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
      at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
      at System.Collections.Specialized.CollectionChangedEventManager.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
      at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
      at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
      at Xceed.Wpf.DataGrid.DataGridCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
      at Xceed.Wpf.DataGrid.DataGridCollectionView.ForceRefresh(Boolean sendResetNotification, Boolean initialLoad)
      at Xceed.Wpf.DataGrid.DataGridCollectionView.BindingList_ListChanged(Object sender, ListChangedEventArgs e)
      at Xceed.Wpf.DataGrid.DataGridCollectionView.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
      at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
      at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
      at Xceed.Utils.Collections.ListChangedEventManager.OnListChanged(Object sender, ListChangedEventArgs args)
      at System.ComponentModel.ListChangedEventHandler.Invoke(Object sender, ListChangedEventArgs e)
      at System.Windows.Forms.BindingSource.OnListChanged(ListChangedEventArgs e)
      at System.Windows.Forms.BindingSource.ResetBindings(Boolean metadataChanged)

I don't know what to do to make the grid refresh correctly. It seems that the problem occurs when there is several items in the grid.

Thank you