void diagram1_MouseMove(object sender, MouseEventArgs e)
{
ExpanderNode node = diagram1.Controller.GetNodeAtPoint(diagram1.Controller.ConvertToModelCoordinates(e.Location)) as ExpanderNode;
if (node != null)
{
node.MouseMove(diagram1.Controller.ConvertToModelCoordinates(e.Location));
}
}
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.
ExpanderNode cursymbol = outlink.ToNode as ExpanderNode;
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);
}
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.
ExpanderNode cursymbol = outlink.ToNode as ExpanderNode;
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);
}
private void Form1_Load(object sender, EventArgs e)
{
diagram1.BeginUpdate();
diagram1.View.Grid.Visible = false;
diagram1.View.BackgroundColor = Color.White;
comboDirection.SelectedIndex = 0;
diagram1.MouseMove += new MouseEventHandler(diagram1_MouseMove);
diagram1.EventSink.NodeMouseEnter += new Syncfusion.Windows.Forms.Diagram.NodeMouseEventHandler(EventSink_NodeMouseEnter);
diagram1.Model.RenderingStyle.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
diagram1.Model.BoundaryConstraintsEnabled = false;
for (int i = 0; i <= 11; i++)
{
ExpanderNode expander = new ExpanderNode(new RectangleF(0, 0, 90, 60));
expander.Name = i.ToString();
diagram1.Model.AppendChild(expander);
}
Connect(diagram1.Model.Nodes["0"], diagram1.Model.Nodes["1"]);
Connect(diagram1.Model.Nodes["0"], diagram1.Model.Nodes["2"]);
Connect(diagram1.Model.Nodes["2"], diagram1.Model.Nodes["3"]);
Connect(diagram1.Model.Nodes["2"], diagram1.Model.Nodes["4"]);
Connect(diagram1.Model.Nodes["2"], diagram1.Model.Nodes["5"]);
Connect(diagram1.Model.Nodes["5"], diagram1.Model.Nodes["6"]);
Connect(diagram1.Model.Nodes["5"], diagram1.Model.Nodes["7"]);
Connect(diagram1.Model.Nodes["1"], diagram1.Model.Nodes["8"]);
Connect(diagram1.Model.Nodes["1"], diagram1.Model.Nodes["9"]);
Connect(diagram1.Model.Nodes["1"], diagram1.Model.Nodes["10"]);
Connect(diagram1.Model.Nodes["1"], diagram1.Model.Nodes["11"]);
LayoutNodes();
diagram1.EndUpdate();
comboDirection.SelectedIndexChanged += new EventHandler(comboDirection_SelectedIndexChanged);
diagram1.Controller.InPlaceEditor.LabelEditingCompleted += InPlaceEditor_LabelEditingCompleted;
}
