public MaskElement(string masksymbol, int minvalue, int maxvalue)
 {
     maskSymbol      = masksymbol;
     minValue        = minvalue;
     maxValue        = maxvalue;
     aEditCollection = new EditElementCollection();
 }
 public MaskElement()
 {
     maskSymbol      = string.Empty;
     minValue        = 0;
     maxValue        = 0;
     aEditCollection = new EditElementCollection();
 }