/// <summary>
/// Create a new method for collapse current node
/// </summary>
/// <param name="SelectedNode"></param>
public NodeCollection CollapseSubNodes(bool clickednode)
{
NodeCollection collapsedCollection = new NodeCollection();
IGraphNode thisNode = this as IGraphNode;
if (thisNode != null)
{
ICollection edgesLeaving = thisNode.EdgesLeaving;
if (edgesLeaving != null)
{
// Convert to collection of IGraphEdges type.
foreach (IGraphEdge curEdge in edgesLeaving)
{
// Get from IGraphEdge link.
ConnectorBase outlink = curEdge as ConnectorBase;
if (outlink != null)
{
// Get from link current symbol children.
EmpSymbol cursymbol = outlink.ToNode as EmpSymbol;
if (cursymbol != null)
{
// Colapse nodes in child symbol.
cursymbol.CollapseSubNodes(false);
// Set current symbol as invisible.
cursymbol.Visible = false;
}
// Set connected link as invisible too.
outlink.Visible = false;
//CollapsedCollection.Add(outlink);
}
}
}
}
CollapsedCollection = collapsedCollection;
// If this symbol is node under mouse click set node state as
// expaned by make plus vertical line visibly.
if (clickednode && HasChild())
{
// Set symbol shapes to indicate a collapsed state.
m_bExpanded = false;
}
return(collapsedCollection);
}
