void HandleParentChanged(IBrowsableCollection collection)
{
IPhoto [] local = old;
selected_cells.Clear();
bit_array = new BitArray(parent.Count);
ClearCached();
if (old != null)
{
int i;
for (i = 0; i < local.Length; i++)
{
int parent_index = parent.IndexOf(local [i]);
if (parent_index >= 0)
{
Add(parent_index, false);
}
}
}
// Call the directly so that we don't reset old immediately this way the old selection
// set isn't actually lost until we change it.
Changed?.Invoke(this);
DetailedChanged?.Invoke(this, null);
}
protected void HandleCollectionChanged(IBrowsableCollection collection)
{
int old_location = Index;
int next_location = collection.IndexOf(item);
if (old_location == next_location)
{
if (!Valid(next_location))
{
SetIndex(0, null);
}
return;
}
if (Valid(next_location))
{
SetIndex(next_location);
}
else if (Valid(old_location))
{
SetIndex(old_location);
}
else
{
SetIndex(0);
}
}
public int IndexOf(IPhoto item)
{
if (collection == null)
{
return(-1);
}
return(collection.IndexOf(item));
}
protected void HandleCollectionChanged(IBrowsableCollection browsableCollection)
{
if (browsableCollection == null)
{
throw new ArgumentNullException(nameof(browsableCollection));
}
int old_location = Index;
int next_location = browsableCollection.IndexOf(item);
if (old_location == next_location)
{
if (!Valid(next_location))
{
SetIndex(0, null);
}
return;
}
if (Valid(next_location))
{
SetIndex(next_location);
}
else if (Valid(old_location))
{
SetIndex(old_location);
}
else if (Valid(old_location - 1))
{
SetIndex(old_location - 1);
}
else
{
SetIndex(0);
}
}
protected void HandleCollectionChanged(IBrowsableCollection collection)
{
if (collection == null)
throw new ArgumentNullException ("collection");
int old_location = Index;
int next_location = collection.IndexOf (item);
if (old_location == next_location) {
if (! Valid (next_location))
SetIndex (0, null);
return;
}
if (Valid (next_location))
SetIndex (next_location);
else if (Valid (old_location))
SetIndex (old_location);
else if (Valid (old_location - 1))
SetIndex (old_location - 1);
else
SetIndex (0);
}
protected void HandleCollectionChanged (IBrowsableCollection collection)
{
int old_location = Index;
int next_location = collection.IndexOf (item);
if (old_location == next_location) {
if (! Valid (next_location))
SetIndex (0, null);
return;
}
if (Valid (next_location))
SetIndex (next_location);
else if (Valid (old_location))
SetIndex (old_location);
else
SetIndex (0);
}
