public FFieldDataAttribute(string field1, string field2)
 {
     _inner = new FieldDataAttribute(field1, field2);
 }
 public FFieldDataAttribute(params string[] fields)
 {
     _inner = new FieldDataAttribute(fields);
 }
 public FFieldDataAttribute(string field)
 {
     _inner = new FieldDataAttribute(field);
 }
 public XFieldDataAttribute(string field1, string field2, string field3)
 {
     _inner = new FieldDataAttribute(field1, field2, field3);
 }