/// <summary> /// Filters documents where a specific field has no value in them. /// </summary> public BaseFilter Missing(string field) { var filter = new MissingFilter { Field = field }; this.SetCacheAndName(filter); return(this.New(filter, f => f.MissingFilter = filter)); }
/// <summary> /// Filters documents where a specific field has no value in them. /// </summary> public BaseFilter Missing(Expression <Func <T, object> > fieldDescriptor) { var filter = new MissingFilter { Field = fieldDescriptor }; this.SetCacheAndName(filter); return(this.New(filter, f => f.MissingFilter = filter)); }