private void AddDescription(DataDescriptor newItem, int index)
{
if (this.descriptionCollection == null)
{
return;
}
if (index >= 0)
{
this.descriptionCollection.Insert(index, newItem.EngineDescription);
}
else
{
this.descriptionCollection.Add(newItem.EngineDescription);
}
}
private void RemoveDescription(DataDescriptor oldItem)
{
if (this.descriptionCollection == null)
{
return;
}
foreach (DescriptionBase description in this.descriptionCollection)
{
if (oldItem.Equals(description))
{
this.descriptionCollection.Remove(description);
break;
}
}
}
internal virtual void OnAssociatedDescriptorRemoved(DataDescriptor descriptor)
{
if (this.Model == null)
{
return;
}
if (descriptor is FilterDescriptorBase)
{
this.isFiltered = this.Model.FilterDescriptors.Where(d => d.DescriptorPeer == this).FirstOrDefault() != descriptor;
this.UpdateFilterVisualState(this.isFiltered);
}
else if (!this.updatingSort && descriptor == this.currentSortDescriptor)
{
this.ClearSort();
}
}
internal virtual void OnDescriptorAssociated(DataDescriptor descriptor)
{
if (descriptor is FilterDescriptorBase)
{
this.isFiltered = true;
this.UpdateFilterVisualState(this.isFiltered);
}
else if (descriptor != this.currentSortDescriptor)
{
var sortDescriptor = descriptor as SortDescriptorBase;
if (sortDescriptor != null)
{
this.currentSortDescriptor = sortDescriptor;
this.SortDirection = this.currentSortDescriptor.SortOrder == SortOrder.Ascending ? SortDirection.Ascending : SortDirection.Descending;
}
}
}
void IDataDescriptorPeer.OnAssociatedDescriptorRemoved(DataDescriptor descriptor)
{
this.OnAssociatedDescriptorRemoved(descriptor);
}
void IDataDescriptorPeer.OnAssociatedDescriptorPropertyChanged(DataDescriptor descriptor, string propertyName)
{
this.OnAssociatedDescriptorPropertyChanged(descriptor, propertyName);
}
void IDataDescriptorPeer.OnDescriptorAssociated(DataDescriptor descriptor)
{
this.OnDescriptorAssociated(descriptor);
}
private void AddDescriptor(DataDescriptor descriptor, int index)
{
descriptor.PropertyChanged += this.OnItemPropertyChanged;
descriptor.Attach(this.owner);
this.AddDescription(descriptor, index);
}
private void RemoveDescriptor(DataDescriptor descriptor)
{
descriptor.PropertyChanged -= this.OnItemPropertyChanged;
descriptor.Detach();
this.RemoveDescription(descriptor);
}