public void SetPrice(IFIXGroup FIXGroup, out double? dblPrice)
 {
     double dblValue;
     if (FIXGroup.GetDouble(out dblValue, FIXTagConstants.esFIXTagPosAmt))
         dblPrice = dblValue;
     else
         dblPrice = null;
     IsDirty = true;
 }
 public void SetPosition(IFIXGroup FIXGroup, out double? dblPosition)
 {
     double dblValue;
     if (FIXGroup.GetDouble(out dblValue, FIXTagConstants.esFIXTagPosQty))
         dblPosition = dblValue;
     else
         dblPosition = null;
     IsDirty = true;
 }