Finishddd

Entities/Contracts/AppMainStruct.cs

@@ -70,8 +70,10 @@ namespace Entities.Contracts
 	public enum AssignmentStructType : byte
 	{
 		Question,
+		Composite,
 		Struct,
-		SubQuestion
+		SubQuestion,
+		Option
 	}
 
 }

Entities/DTO/AssignmentQuestionDto.cs

@@ -20,7 +20,7 @@ namespace Entities.DTO
 		public AssignmentStructType StructType { get; set; } = AssignmentStructType.Question;
 
 		public AssignmentQuestionDto? ParentAssignmentQuestion { get; set; }
-		public ICollection<AssignmentQuestionDto> ChildrenAssignmentQuestion { get; set; } = new List<AssignmentQuestionDto>();
+		public List<AssignmentQuestionDto> ChildrenAssignmentQuestion { get; set; } = new List<AssignmentQuestionDto>();
 
 		public QuestionDto? Question { get; set; }
 	}