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 Nequeo.Wpf.Collections.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;
}
internal virtual void ApplyExtraPropertiesToView(DataGridCollectionViewBase currentView)
{
DataGridItemPropertyCollection currentViewItemProperties = currentView.ItemProperties;
int count = m_itemProperties.Count;
for (int i = 0; i < count; i++)
{
DataGridItemPropertyBase itemProperty = m_itemProperties[i];
int index = currentViewItemProperties.IndexOf(itemProperty.Name);
if (index == -1)
{
currentViewItemProperties.Add(itemProperty);
}
else
{
currentViewItemProperties[index] = itemProperty;
}
}
count = currentView.ItemProperties.Count;
bool defaultCalculateDistinctValues = this.DefaultCalculateDistinctValues;
for (int i = 0; i < count; i++)
{
DataGridItemPropertyBase dataGridItemProperty = currentView.ItemProperties[i];
// Set default value for CalculateDistinctValues if not explicitly set
if (!dataGridItemProperty.IsCalculateDistinctValuesInitialized)
{
dataGridItemProperty.CalculateDistinctValues = defaultCalculateDistinctValues;
}
}
count = m_dataGridDetailDescriptions.Count;
bool autoCreateForeignKeyDescriptions = this.AutoCreateForeignKeyDescriptions;
DataGridDetailDescriptionCollection currentViewDetailDescriptions =
currentView.DetailDescriptions;
for (int i = 0; i < count; i++)
{
DataGridDetailDescription detailDescription = m_dataGridDetailDescriptions[i];
int index = currentViewDetailDescriptions.IndexOf(detailDescription.RelationName);
if (index == -1)
{
currentViewDetailDescriptions.Add(detailDescription);
}
else
{
currentViewDetailDescriptions[index] = detailDescription;
}
// We assume we want to auto-create ForeignKeyDescriptions for DetailDescriptions
// if this.AutoCreateForeignKeyDescriptions is true and it was auto-created
if (detailDescription.IsAutoCreated)
{
detailDescription.AutoCreateForeignKeyDescriptions = autoCreateForeignKeyDescriptions;
}
}
currentView.AutoFilterMode = this.AutoFilterMode;
currentView.DistinctValuesConstraint = this.DistinctValuesConstraint;
currentView.DistinctValuesUpdateMode = this.DistinctValuesUpdateMode;
currentView.FilterCriteriaMode = this.FilterCriteriaMode;
}
