/// <summary>
 /// Constructor
 /// </summary>
 /// <param name="sot">SeachOptionType</param>
 /// <param name="val">string value</param>
 /// <param name="st">SeachType of the option</param>
 public SearchOption(SeachOptionType sot, string val, SeachType st)
 {
     optiontype = sot;
     value = val;
     searchtype = st;
 }
 /// <summary>
 /// Constructor
 /// </summary>
 /// <param name="sot">SeachOptionType</param>
 /// <param name="val">string value</param>
 public SearchOption(SeachOptionType sot, string val)
 {
     optiontype = sot;
     value = val;
     searchtype = SeachType.Equal;
 }