...

Back/Data/Models/Invoice.cs

@@ -1,5 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
 using Back.Common;
 using Shared.DTOs;
 namespace Back.Data.Models
@@ -72,7 +73,7 @@ namespace Back.Data.Models
         //اریخ کوتاژ اظهارنامه گمرکی
         // Unix Time   => from fild CottageDateOfCustomsDeclaration
         [MaxLength(5)]
-        public long? cdcd { get { return new DateTimeOffset(CottageDateOfCustomsDeclaration.Trim().ToMiladi()).ToUnixTimeMilliseconds(); } }
+        public long? cdcd { get { return string.IsNullOrEmpty(CottageDateOfCustomsDeclaration) ? null : new DateTimeOffset(CottageDateOfCustomsDeclaration.Trim().ToMiladi()).ToUnixTimeMilliseconds(); } }
         //کد پستی خریدار
         [MaxLength(10)]
         public string? bpc { get { return Customer.ZipCode; } }
@@ -175,6 +176,7 @@ namespace Back.Data.Models
         [ForeignKey("PatternID")]
         public virtual Pattern? pattern { get; set; }
         [ForeignKey("CompanyID")]
+        [JsonIgnore]
         public virtual Company? company { get; set; }
         #endregion
     }