DrawJig: how to make the WorldDraw SubEntities linetype regen always?

[volen921]

for example:
////////////////////////////////.......
protected override bool WorldDraw(WorldDraw draw)
{
WorldGeometry wg = draw.Geometry as WorldGeometry;
draw.SubEntityTraits.LineType = Tools.GetLinetypeID("HIDDEN2");
draw.SubEntityTraits.LineTypeScale = dScale * Tools.GetViewSize()/oldViewSize;
if (wg != null)
{
wg.WorldLine(new Point3d(100, 0, 0), _position);
wg.Ray(new Point3d(0, 0, 0),_position);
}
return true;
}
/////////////////////////////
is anybody know how to let the line or ray's linetype regen always?
thank you！
best wishes！