/// <summary>
/// Create new method for expand current node
/// </summary>
/// <param name="SelectedNode"></param>
public NodeCollection ExpandSubNodes(bool clickednode)
{
NodeCollection expandCollection = new NodeCollection();
ExpandedCollection = new NodeCollection();
IGraphNode thisNode = this as IGraphNode;
if (thisNode != null)
{
ICollection edgesLeaving = thisNode.EdgesLeaving;
if (edgesLeaving != null)
{
foreach (IGraphEdge curEdge in edgesLeaving)
{
// Get from IGraphEdge link.
ConnectorBase outlink = curEdge as ConnectorBase;
if (outlink != null)
{
// Get from link children of current symbol.
EmpSymbol cursymbol = outlink.ToNode as EmpSymbol;
if (cursymbol != null)
{
// Check for explanded and explande nodes in child symbol.
if (cursymbol.IsExpanded)
{
cursymbol.ExpandSubNodes(false);
}
// Set current symbol as visible.
cursymbol.Visible = true;
expandCollection.Add(cursymbol);
}
// Set connected link as visible too.
outlink.Visible = true;
expandCollection.Add(outlink);
}
}
}
}
ExpandedCollection = expandCollection;
// 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 an expanded state.
m_bExpanded = true;
}
return(expandCollection);
}
