put in signal for edit

myshare/API/FamilyTreeAPI/Helper/Helpers.cs

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+namespace FamilyTreeAPI.Helper
+{
+    public class Helpers
+    {
+        public static string? DateToStr(DateTime? date)
+        {
+            string? result = null;
+            if (date.HasValue)
+            {
+                result = date.Value.ToString("yyyy-MM-dd");
+            }
+            return result;
+        }
+        public static DateTime? DateToDateTime(string? date)
+        {
+            DateTime? result = null;
+            if (!string.IsNullOrEmpty(date))
+            {
+                DateTime dt;
+                if (DateTime.TryParse(date, out dt))
+                {
+                    result = dt;
+                }
+            }
+            return result;
+        }
+    }
+}

myshare/API/FamilyTreeAPI/Helper/family_doc.txt

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+The family Tree
+
+Man and Woman
+
+top level
+
+1) TAM (M) has partner Jenny (F)
+
+had child CAO (M)
+had Child Emmy (F)
+has Child Loan (F)
+
+
+2) CAO (M) has partner Lin (F)
+
+has child Joe (M)
+has child TOM (M)
+
+
+3) Joe has partner Sophia (F)
+
+has child Olivia (F)
+has child Mai (F)
+
+
+4) Henry has partner Loan (F)
+
+has child Enya (F)
+has child Thanh (M)
+has child Chuong (M)
+
+5) Henry has partner Brisa (F)
+has child Fern (F)
+has child Tim (M)
+