编写与.net属性窗口交互的RAD组件(五)[3]

   public override propertydescriptorcollection

              getproperties(itypedescriptorcontext context, object component,

              attribute[] attrs)

   {

       // our list of props.

       //

       arraylist proplist = new arraylist();

       // add the property for our count of vertices

       //

       proplist.add(new numpointspropertydescriptor(this));