39 lines
862 B
C#
39 lines
862 B
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LibraryDatabaseImplement.Models
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{
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public class Book
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{
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public int Id { get; set; }
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[Required]
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public string Title { get; set; }
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[Required]
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public string Description { get; set; }
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[Required]
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public string Genre { get; set; }
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[Required]
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public int? Cost { get; set; }
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public string CostStr
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{
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set { }
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get
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{
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if (Cost == 0) return "Бесплатная";
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else if (Cost == null) return "Не указано";
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else return Cost.ToString();
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}
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}
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}
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}
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