/// <summary>
/// Look for a shown child and replace it with a new one
/// <para>This comes as we have set it up for items to be replaced in the hierarchy</para>
/// </summary>
/// <param name="shown">Shown item to replace</param>
/// <param name="newItem">New item to replace the shown with</param>
private void ReplaceShownChild(ListItemVM shown, ListItemVM newItem)
{
if (ParentItemVM == null)
{
if (ParentVM != null)
{
ParentVM.ReplaceSelectedItem(newItem);
}
}
else
{
if (String.Equals(Model.Code.ChildType, IcdCodeStrings.ChildType_Direct))
{
ParentItemVM.ReplaceShownChild(shown, newItem);
}
else
{
var newParentChildren = ParentItemVM.Children.ToList();
for (int childOn = 0; childOn < newParentChildren.Count; ++childOn)
{
if (Object.ReferenceEquals(newParentChildren[childOn], shown) ||
Object.ReferenceEquals(newParentChildren[childOn], this))
{
newParentChildren[childOn] = newItem;
}
}
ParentItemVM.Children = newParentChildren;
}
}
}
/// <summary>
/// Replace a single, selected item
/// <para>Attempts to propagate to the ListVM of ParentVM or calls ReplaceShownChild when appropriate</para>
/// </summary>
/// <param name="newItem">New item to replace the single selected item with</param>
public void ReplaceSelectedChild(ListItemVM newItem)
{
if (newItem == null)
{
return;
}
if (ParentItemVM == null)
{
if (ParentVM != null)
{
ParentVM.ReplaceSelectedItem(newItem);
}
}
else
{
ReplaceShownChild(this, newItem);
}
}
/// <summary>
/// Attempt to clear the ParentVM ListVM when appropriate.
/// <para>Will figure if needs to load </para>
/// </summary>
public void ClearForParent()
{
if (String.Equals(Model.Code.ChildType, IcdCodeStrings.ChildType_Direct))
{
if ((ParentVM != null) && (ParentItemVM != null))
{
ParentItemVM.ClearToAllChildren();
if (Object.ReferenceEquals(ParentVM.Items.Items[0], this))
{
ParentVM.ReplaceSelectedItem(ParentItemVM, false);
}
else
{
ReplaceShownChild(this, ParentItemVM);
}
}
else if (ParentVM != null)
{
ParentVM.ClearToFullList();
}
}
}
