public void DeleteElement(BaseElement el)
{
if ((el != null) && !(el is ConnectorElement))
{
//Delete link
if (el is BaseLinkElement)
{
BaseLinkElement lnk = (BaseLinkElement)el;
DeleteLink(lnk);
return;
}
//Delete node
if (el is NodeElement)
{
NodeElement conn = ((NodeElement)el);
foreach (ConnectorElement elconn in conn.Connectors)
{
BaseLinkElement lnk;
for (int i = elconn.Links.Count - 1; i >= 0; i--)
{
lnk = (BaseLinkElement)elconn.Links[i];
DeleteLink(lnk);
}
}
if (selectedNodes.Contains(el))
{
selectedNodes.Remove(el);
}
}
if (SelectedElements.Contains(el))
{
selectedElements.Remove(el);
}
elements.Remove(el);
OnAppearancePropertyChanged(new EventArgs());
}
el = null;
}
internal void RemoveLink(BaseLinkElement lnk)
{
links.Remove(lnk);
}