private void OnItemPropertyPropertyChanged(DataGridItemPropertyBase itemProperty, PropertyChangedEventArgs e)
{
var rootCollection = ItemsSourceHelper.GetRootCollection(itemProperty);
if (rootCollection == null)
{
return;
}
using (this.DeferMappingChanged())
{
if (string.IsNullOrEmpty(e.PropertyName) || (e.PropertyName == DataGridItemPropertyBase.SynonymPropertyName))
{
if (rootCollection == m_detailItemProperties)
{
this.MapDetailItemProperty(itemProperty);
}
}
if (string.IsNullOrEmpty(e.PropertyName) || (e.PropertyName == DataGridItemPropertyBase.ItemPropertiesInternalPropertyName))
{
var itemProperties = itemProperty.ItemPropertiesInternal;
if (itemProperties != null)
{
this.UnregisterItemProperties(itemProperties);
this.RegisterItemProperties(itemProperties);
if (rootCollection == m_masterItemProperties)
{
foreach (var childItemProperty in itemProperties)
{
this.MapMasterItemProperty(childItemProperty);
}
}
else if (rootCollection == m_detailItemProperties)
{
foreach (var childItemProperty in itemProperties)
{
this.MapDetailItemProperty(childItemProperty);
}
}
}
}
}
}
private void OnItemPropertyCollectionChanged(DataGridItemPropertyCollection collection, NotifyCollectionChangedEventArgs e)
{
var rootCollection = ItemsSourceHelper.GetRootCollection(collection);
if (rootCollection == null)
{
return;
}
if (rootCollection == m_masterItemProperties)
{
if (e.Action == NotifyCollectionChangedAction.Reset)
{
throw new NotSupportedException();
}
if (e.Action == NotifyCollectionChangedAction.Move)
{
return;
}
using (this.DeferMappingChanged())
{
if (e.OldItems != null)
{
foreach (DataGridItemPropertyBase itemProperty in e.OldItems)
{
this.UnregisterItemProperty(itemProperty);
this.UnmapMasterItemProperty(itemProperty);
}
}
if (e.NewItems != null)
{
foreach (DataGridItemPropertyBase itemProperty in e.NewItems)
{
this.RegisterItemProperty(itemProperty);
this.MapMasterItemProperty(itemProperty);
}
}
}
}
else if (rootCollection == m_detailItemProperties)
{
if (e.Action == NotifyCollectionChangedAction.Reset)
{
throw new NotSupportedException();
}
if (e.Action == NotifyCollectionChangedAction.Move)
{
return;
}
using (this.DeferMappingChanged())
{
if (e.OldItems != null)
{
foreach (DataGridItemPropertyBase itemProperty in e.OldItems)
{
this.UnregisterItemProperty(itemProperty);
this.UnmapDetailItemProperty(itemProperty);
}
}
if (e.NewItems != null)
{
foreach (DataGridItemPropertyBase itemProperty in e.NewItems)
{
this.RegisterItemProperty(itemProperty);
this.MapDetailItemProperty(itemProperty);
}
}
}
}
else
{
Debug.Fail("The collection should have been either for the master or the detail item properties.");
CollectionChangedEventManager.RemoveListener(collection, this);
}
}
