// This method returns the StatFunction properties as defined by the "parent"
// DataGridCollectionView as well as the other "standard" properties for this class.
// The StatFunction properties are NOT filtered by the specified attributes.
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
if (attributes == null)
{
// We only cache the full property list.
if (m_classProperties == null)
{
DataGridCollectionView view = this.GetCollectionView();
Debug.Assert(view != null, "A group should always have a parent CollectionView for the StatFunctions to work.");
if (view == null)
{
return(TypeDescriptor.GetProperties(typeof(DataGridCollectionViewGroup)));
}
PropertyDescriptorCollection classProperties = TypeDescriptor.GetProperties(typeof(DataGridCollectionViewGroup));
PropertyDescriptorCollection statProperties = view.GetStatFunctionProperties();
PropertyDescriptor[] properties = new PropertyDescriptor[classProperties.Count + statProperties.Count];
classProperties.CopyTo(properties, 0);
statProperties.CopyTo(properties, classProperties.Count);
m_classProperties = new PropertyDescriptorCollection(properties);
}
return(m_classProperties);
}
else
{
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(this, attributes);
DataGridCollectionView view = this.GetCollectionView();
if (view != null)
{
foreach (PropertyDescriptor property in view.GetStatFunctionProperties())
{
props.Add(property);
}
}
return(props);
}
}
internal void InvokeStatFunctionsPropertyChanged(DataGridCollectionView view)
{
if (view.CalculateChangedPropertyStatsOnly)
{
foreach (Stats.StatFunction statFunction in view.InvalidatedStatFunctions)
{
{
this.OnPropertyChanged(new PropertyChangedEventArgs(statFunction.ResultPropertyName));
}
}
}
else
{
foreach (PropertyDescriptor statFunctionPropertyDescriptor in view.GetStatFunctionProperties())
{
this.OnPropertyChanged(new PropertyChangedEventArgs(statFunctionPropertyDescriptor.Name));
}
}
}
internal void InvokeStatFunctionsPropertyChanged(DataGridCollectionView collectionView)
{
if (this.HasPropertyChangedListeners)
{
if (collectionView.CalculateChangedPropertyStatsOnly && !this.CalculateAllStats)
{
foreach (StatFunction statFunction in collectionView.InvalidatedStatFunctions)
{
{
this.OnPropertyChanged(new PropertyChangedEventArgs(statFunction.ResultPropertyName));
}
}
}
else
{
foreach (PropertyDescriptor statFunctionPropertyDescriptor in collectionView.GetStatFunctionProperties())
{
this.OnPropertyChanged(new PropertyChangedEventArgs(statFunctionPropertyDescriptor.Name));
}
}
}
this.CalculateAllStats = false;
}
internal void InvokeStatFunctionsPropertyChanged( DataGridCollectionView view )
{
if( view.CalculateChangedPropertyStatsOnly )
{
foreach( Stats.StatFunction statFunction in view.InvalidatedStatFunctions )
{
{
this.OnPropertyChanged( new PropertyChangedEventArgs( statFunction.ResultPropertyName ) );
}
}
}
else
{
foreach( PropertyDescriptor statFunctionPropertyDescriptor in view.GetStatFunctionProperties() )
{
this.OnPropertyChanged( new PropertyChangedEventArgs( statFunctionPropertyDescriptor.Name ) );
}
}
}
