Refactored SearchParameter object

gistfile1.cs

 public class SearchParameter
 {
    public string VariableName { get; set; }
    public string WhereClause { get; set; }      
    public bool IsWildcardSearch { get; set; }
    public bool IsRangeSearch { get; set; }
    public bool AllowsMultipleValues { get; set; }      
    public Type ParameterType { get; set; }
 }