/// <summary>
 /// Set the pinned corner of the popup.
 /// </summary>
 /// <param name="corner"> The corner of the popup which is
 /// pinned to the attaching element.</param>
 public void setPinnedCorner(goog.positioning.Corner corner)
 {
     this.pinnedCorner_ = corner;
     if (this.popup_ != null)
     {
         this.popup_.setPinnedCorner(this.pinnedCorner_);
     }
 }
 /// <summary>
 /// Sets which corner of the attaching element this popup shows up.
 /// </summary>
 /// <param name="corner"> The corner of the attaching element
 /// where to show the popup.</param>
 public void setPopupCorner(goog.positioning.Corner corner)
 {
     this.popupCorner_ = corner;
 }