code: public void populateSelectedTarget(final Target selectedTarget) {
          this.selectedTarget = selectedTarget;
          getDetailsSupport()
                  .populateMasterDataAndRecalculateContainer(selectedTarget != null ? selectedTarget.getId() : null);
      }
docs: Set target as member of this grid (as all presented grid-data is related
  to this target) and recalculate grid-data for this target.
  
  @param selectedTarget
  reference of target