//增加单元
 private void addElement_ObjDefine()
 {
     if (listBox_Obj_Define.Focused)//增加对象类型单元
     {
         PropertyTypeElement element = new PropertyTypeElement(propertyTypesManager);
         element.setName(SmallDialog_WordEdit.getNewName("新对象类型单元", element.name));
         propertyTypesManager.insertElement(element, listBox_Obj_Define.SelectedIndex + 1);
     }
     else if (currentObjTypeElement != null)
     {
         if (listBox_ObjProperties.Focused)//增加属性单元
         {
             PropertyElement element = SmallDialog_PropertyDefine.createElement(currentObjTypeElement.propertiesManager);
             if (element != null)
             {
                 int index = listBox_ObjProperties.SelectedIndex+1;
                 currentObjTypeElement.propertiesManager.insertElement(element, index);
                 currentObjTypeElement.instancesManager.inseartProperty(element, index);
             }
         }
         else if (listBox_ObjInstances.Focused)//增加对象实例单元
         {
             InstanceElement element = new InstanceElement(currentObjTypeElement.instancesManager);
             element.propertyValueManager.refreshProperty();
             element.setName(SmallDialog_WordEdit.getNewName("新对象实例单元", element.name));
             currentObjTypeElement.instancesManager.insertElement(element, listBox_ObjInstances.SelectedIndex + 1);
             element.propertyValueManager.refreshUI(listBox_InstanceProperty);
         }
     }
 }