void ReplaceDependencySources()
{
if (!ParentBindingExpression.IsDetaching)
{
int size = PW.Length;
if (PW.NeedsDirectNotification)
{
++size;
}
WeakDependencySource[] newSources = new WeakDependencySource[size];
int n = 0;
if (IsDynamic)
{
for (int k = 0; k < PW.Length; ++k)
{
DependencyProperty dp = PW.GetAccessor(k) as DependencyProperty;
if (dp != null)
{
DependencyObject d = PW.GetItem(k) as DependencyObject;
if (d != null)
{
newSources[n++] = new WeakDependencySource(d, dp);
}
}
}
if (PW.NeedsDirectNotification)
{
// subproperty notifications can only arise from Freezables
// (as of today - 11/14/08), so we only need to propagate
// them when the raw value is a Freezable.
DependencyObject d = PW.RawValue() as Freezable;
if (d != null)
{
newSources[n++] = new WeakDependencySource(d, DependencyObject.DirectDependencyProperty);
}
}
}
ParentBindingExpression.ChangeWorkerSources(newSources, n);
}
}
