...

Back/Data/Models/Condition.cs

@@ -0,0 +1,16 @@
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Back.Data.Models
+{
+    public class Condition
+    {
+        public int ID { get; set; }
+        public int fildID { get; set; }
+        public string condition { get; set; }
+
+
+        //----------nav
+        [ForeignKey("fildID")]
+        public Fild  fild { get; set; }
+    }
+}

Back/Data/Models/Fild.cs

@@ -16,6 +16,7 @@ namespace  Back.Data.Models
         #region Navigation
         public virtual ICollection<FildModeInPattern> FildModeInPatterns { get; set; }
        public virtual ICollection<Coding> Codings { get; set; }
+        public virtual ICollection<Condition>  Conditions { get; set; }
         [NotMapped]
         public ICollection<SpecialCondition> specialConditions { get; set; }
         #endregion