Nodes are graphical objects that can be arranged in a diagram page. These nodes can be added to the diagram page either programmatically or during run time by dragging them from a built-in symbol selector. The shapes for these nodes can be set to any one of the predefined shapes provided. You can also design these shapes using a symbol designer utility (included in the Essential Diagram install). Nodes can be grouped together and common operations can be performed on them.
Essential Diagram lets you create nodes embedded with any Windows Forms control. You can move nodes around just like any other node and double-click them to activate the controls inside. It also provides editable text nodes and rich-text nodes.