public DataGridCollectionViewSourceBase()
: base()
{
m_itemProperties = new ObservableCollection<DataGridItemPropertyBase>();
m_itemProperties.CollectionChanged += new NotifyCollectionChangedEventHandler( this.ForwardedCollection_CollectionChanged );
m_dataGridDetailDescriptions = new DataGridDetailDescriptionCollection();
m_dataGridDetailDescriptions.CollectionChanged += new NotifyCollectionChangedEventHandler( this.ForwardedCollection_CollectionChanged );
// We force a culture because it is the only way to be
// notified when the Culture changes in order to launch our own
// ApplyExtraPropertiesToView (because the implentation of ApplyPropertiesToView is not virtual!)
//
// See CollectionViewSource.ApplyPropertiesToView in reflector for a better understanding.
this.Culture = CultureInfo.InvariantCulture;
}
protected DataGridDetailDescription()
{
m_detailDescriptions = new DataGridDetailDescriptionCollection();
m_detailDescriptions.CollectionChanged += this.OnDetailDescriptionsCollectionChanged;
m_itemProperties = new DataGridItemPropertyCollection();
m_itemProperties.CollectionChanged += this.OnItemPropertiesCollectionChanged;
m_groupDescriptions = new GroupDescriptionCollection();
m_sortDescriptions = new DataGridSortDescriptionCollection();
m_statFunctions = new StatFunctionCollection();
m_autoFilterValues = new ReadOnlyDictionary<string, IList>();
m_autoFilteredItems = new ObservableCollection<DataGridItemPropertyBase>();
m_registeredFieldNamesToAutoFilterValues = new Dictionary<string, INotifyCollectionChanged>();
m_registeredAutoFilterValuesToFieldNames = new Dictionary<INotifyCollectionChanged, string>();
this.AutoCreateDetailDescriptions = true;
this.AutoCreateItemProperties = true;
this.DefaultCalculateDistinctValues = true;
}
private void SetupDefaultDetailDescriptions()
{
if( this.CanHaveDetails )
{
List<DataGridDetailDescription> defaultDetailDescriptions = this.GetDefaultDetailDescriptions();
if( this.AutoCreateDetailDescriptions )
{
m_dataGridDetailDescriptions = new DataGridDetailDescriptionCollection( defaultDetailDescriptions );
}
else
{
m_dataGridDetailDescriptions = new DataGridDetailDescriptionCollection( new List<DataGridDetailDescription>() );
}
m_dataGridDetailDescriptions.DefaultDetailDescriptions = defaultDetailDescriptions;
}
else
{
// We still create the DetailDescriptions collection but will validate on any modification that the collection view does
// in fact support master/detail.
m_dataGridDetailDescriptions = new DataGridDetailDescriptionCollection( new List<DataGridDetailDescription>() );
}
CollectionChangedEventManager.AddListener( m_dataGridDetailDescriptions, this );
}
internal static void SynchronizeAddedConfigurations( IList addedDetailConfigs, DataGridDetailDescriptionCollection detailDescriptions )
{
foreach( DetailConfiguration detailConfig in addedDetailConfigs )
{
DataGridDetailDescription detailDesc = null;
if( detailDescriptions != null )
{
detailDesc = detailDescriptions[ detailConfig.RelationName ];
}
detailConfig.SynchronizeWithDetailDescription( detailDesc );
}
}
internal static void SynchronizeDetailConfigurations(
DataGridDetailDescriptionCollection dataGridDetailDescriptionCollection,
DetailConfigurationCollection detailConfigurationCollection,
bool autoCreateDetailConfigurations,
bool autoCreateForeignKeyConfigurations,
bool autoRemoveUnassociated )
{
HashSet<DetailConfiguration> detailConfigWithAssociation = new HashSet<DetailConfiguration>();
DetailConfiguration detailConfig;
foreach( DataGridDetailDescription detailDescription in dataGridDetailDescriptionCollection )
{
detailConfig = detailConfigurationCollection[ detailDescription.RelationName ];
if( detailConfig == null )
{
if( autoCreateDetailConfigurations )
{
detailConfig = new DetailConfiguration();
detailConfig.SetIsAutoCreated( true );
detailConfig.RelationName = detailDescription.RelationName;
detailConfig.AutoCreateForeignKeyConfigurations = autoCreateForeignKeyConfigurations;
detailConfig.AutoRemoveColumnsAndDetailConfigurations = autoRemoveUnassociated;
detailConfigurationCollection.Add( detailConfig );
}
}
if( detailConfig != null )
{
detailConfigWithAssociation.Add( detailConfig );
detailConfig.SynchronizeWithDetailDescription( detailDescription );
}
}
for( int i = detailConfigurationCollection.Count - 1; i >= 0; i-- )
{
detailConfig = detailConfigurationCollection[ i ];
if( !detailConfigWithAssociation.Contains( detailConfig ) )
{
detailConfig.DetachFromDetailDescription();
if( ( autoRemoveUnassociated ) && ( detailConfig.IsAutoCreated ) )
{
DetailConfiguration.CleanupDetailConfigurations( detailConfig.DetailConfigurations, autoRemoveUnassociated );
detailConfigurationCollection.RemoveAt( i );
}
}
}
}
