public ShieldPropertiesViewModel(
     TreeViewViewModel treeParent,
     CompoundObjectViewModel parentVm,
     MainViewModel mainVm,
     ShieldProperties modelObject,
     CoSystemViewModel systemViewModel) :
     base(treeParent, parentVm, mainVm, modelObject, systemViewModel)
 {
 }
 public ShieldPropertiesViewModel(
     TreeViewViewModel treeParent,
     CompoundObjectViewModel parentVm,
     MainViewModel mainVm,
     ShieldProperties modelObject) :
     base(treeParent, parentVm, mainVm)
 {
     ModelObject = modelObject;
 }