private void HandleSourceEvents(object old, object source)
{
if (!ReferenceEquals(old, source))
{
DetachSource(old);
AttachSource(source);
BusinessBase bb = Source as BusinessBase;
if (bb != null)
{
IsBusy = bb.IsPropertyBusy(Property);
}
}
}
private void SetSource(object oldSource, object newSource)
{
DetachSource(oldSource);
AttachSource(newSource);
BusinessBase bb = newSource as BusinessBase;
if (bb != null && !string.IsNullOrEmpty(Property))
{
IsBusy = bb.IsPropertyBusy(Property);
}
UpdateState();
}
void source_BusyChanged(object sender, BusyChangedEventArgs e)
{
if (e.PropertyName == PropertyName || string.IsNullOrEmpty(e.PropertyName))
{
bool busy = e.Busy;
BusinessBase bb = Source as BusinessBase;
if (bb != null)
{
busy = bb.IsPropertyBusy(PropertyName);
}
if (busy != IsBusy)
{
IsBusy = busy;
UpdateState();
}
}
}
