// <summary>
// Basic ctor. Note, however, that this class should only be created by ModelPropertyValueCollection
// as that class ensures that the new instance is correctly added and removed from the
// ModelItemMap.
// </summary>
// <param name="modelItem">ModelItem to wrap around</param>
// <param name="index">Index of the ModelItem in the collection</param>
// <param name="parentCollection">Parent collection</param>
public ModelPropertyIndexer(
ModelItem modelItem,
int index,
ModelPropertyValueCollection parentCollection)
: base(parentCollection.ParentValue)
{
if (modelItem == null)
{
throw FxTrace.Exception.ArgumentNull("modelItem");
}
if (parentCollection == null)
{
throw FxTrace.Exception.ArgumentNull("parentCollection");
}
_modelItem = modelItem;
_index = index;
_parentCollection = parentCollection;
_valueCache = new CachedValues(this);
}
// <summary>
// Basic ctor. Note, however, that this class should only be created by ModelPropertyValueCollection
// as that class ensures that the new instance is correctly added and removed from the
// ModelItemMap.
// </summary>
// <param name="modelItem">ModelItem to wrap around</param>
// <param name="index">Index of the ModelItem in the collection</param>
// <param name="parentCollection">Parent collection</param>
public ModelPropertyIndexer(
ModelItem modelItem,
int index,
ModelPropertyValueCollection parentCollection)
: base(parentCollection.ParentValue)
{
if (modelItem == null)
{
throw FxTrace.Exception.ArgumentNull("modelItem");
}
if (parentCollection == null)
{
throw FxTrace.Exception.ArgumentNull("parentCollection");
}
_modelItem = modelItem;
_index = index;
_parentCollection = parentCollection;
_valueCache = new CachedValues(this);
}
// Clear value-related things that this class caches
public void ClearValueRelatedCacheItems()
{
_subProperties = null;
_collection = null;
_standardValues = null;
_standardValuesExclusive = null;
_converter = null;
_commonValueType = null;
_source = null;
_isReadOnly = null;
_valueSerializer = null;
ClearSubValueRelatedCacheItems();
_parent.OnPropertyChanged("StandardValues");
_parent.OnPropertyChanged("StandardValuesExclusive");
_parent.OnPropertyChanged("Converter");
_parent.OnPropertyChanged("CommonValueType");
_parent.OnPropertyChanged("IsReadOnly");
// The following properties are only exposed by ModelPropertyEntry, not PropertyEntry.
// People should bind to these properties through the PropertyValue.
// However, if they ---- up in Xaml, the binding will still work and if that happens
// we should try to update them when things change.
_parent.OnPropertyChanged("SubProperties");
_parent.OnPropertyChanged("Collection");
_parent.OnPropertyChanged("Source");
}