public FileElementTagExtractionAction(ITaggerGrid tg)
     : this(tg.GetTagMatrix(), tg)
 {
     //do nothing here, chained constructor
 }
 public FileElementTagExtractionAction(TagMatrix tm, ITaggerGrid tg)
 {
     masterTagMatrix = tm;
     tgrGrid = tg;
 }
 public FileElementTimestampExtractionAction(TagMatrix tm, ITaggerGrid tg, MenuItem enabled)
 {
     masterTagMatrix = tm;
     tgrGrid = tg;
     this.enabled = enabled;
 }