CreateIcon(ResourceManager,String) Method

In This Topic

Create and initialize a GoImage or a GoDrawing to act as the node's icon.

Syntax

protected virtual GoObject CreateIcon( 
   ResourceManager res,
   string iconname
)

Parameters

res
iconname: a null value causes no GoNodeIcon to be allocated, but instead a GoDrawing initialized to look like a rectangle.

Return Value

a GoNodeIcon that obeys this node's MinimumIconSize and MaximumIconSize properties

Example

If you override this method, you may want the definition to do some of the things that the standard definition does:

protected virtual GoObject CreateIcon(ResourceManager res, String iconname) {
  if (iconname != null) {
    GoNodeIcon ni = new GoNodeIcon();
    if (res != null)
      ni.ResourceManager = res;
    ni.Name = iconname;
    ni.MinimumIconSize = new SizeF(20, 20);
    ni.MaximumIconSize = new SizeF(1000, 2000);
    ni.Size = ni.MinimumIconSize;
    return ni;
  } else {
    GoDrawing rect = new GoDrawing(GoFigure.Rectangle);
    rect.Selectable = false;
    rect.Resizable = false;
    rect.Size = new SizeF(20, 20);
    return rect;
  }
}

Reference

GoGeneralNode Class
GoGeneralNode Members
Overload List

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