· Implemented as using . namespace ShareInvest.OpenAPI.Entity { public abstract class TR { public abstract string[] Id { get; } public abstract string[]? Value { get; set; } public abstract string? RQName { get; set; } public abstract string TrCode { get; } public abstract int PrevNext { get; set; } public abstract string ScreenNo { get; } public abstract string[] Single { get; } public abstract string[] Multiple { get; } protected internal virtual string LookupScreenNo { get { if (count++ == 0x95) { count = 0; } return (3000 + count).ToString("D4"); } } static uint count; } } · Objects for convenient use of OpenAPI's TR data for Kiwoom Securities Corp.