Merge pull request #8 from bfutrell70/master

Fixed issue converting an empty object to a nullable numeric property

Author: clarkd

HubSpot.NET.Examples/Deals.cs

@@ -33,6 +33,21 @@ public static void Example()
              */
             var deals = api.Deal.List<DealHubSpotModel>(false,
                 new ListRequestOptions { PropertiesToInclude = new List<string> { "dealname", "amount" } });
+
+            /**
+             *  Get all deals
+             */
+            //var moreResults = true;
+            //long offset = 0;
+            //while (moreResults)
+            //{
+            //    var allDeals = api.Deal.List<DealHubSpotModel>(false,
+            //        new ListRequestOptions { PropertiesToInclude = new List<string> { "dealname", "amount", "hubspot_owner_id", "closedate" }, Limit = 100, Offset = offset });
+
+            //    moreResults = allDeals.MoreResultsAvailable;
+            //    if (moreResults) offset = allDeals.ContinuationOffset;
+
+            //}
         }
     }
 }

HubSpot.NET/Api/Deal/Dto/DealHubSpotModel.cs

@@ -53,7 +53,7 @@ public DealHubSpotModel()
         public string CloseDate { get; set; }
 
         [DataMember(Name = "amount")]
-        public double Amount { get; set; }
+        public double? Amount { get; set; }
 
         [DataMember(Name = "dealtype")]
         public string DealType { get; set; }

HubSpot.NET/Core/Extensions/StringExtensions.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HubSpot.NET.Core.Extensions
+{
+    public static class StringExtensions
+    {
+        public static bool IsNullOrEmpty(this string value)
+        {
+            return string.IsNullOrEmpty(value);
+        }
+    }
+}

HubSpot.NET/Core/Requests/RequestDataConverter.cs

@@ -3,6 +3,7 @@
 using System.Dynamic;
 using System.Linq;
 using System.Reflection;
+using HubSpot.NET.Core.Extensions;
 using HubSpot.NET.Core.Interfaces;
 
 namespace HubSpot.NET.Core.Requests
@@ -219,12 +220,23 @@ internal object ConvertSingleEntity(ExpandoObject dynamicObject, object dto)
 
                 if (targetProp != null)
                 {
-
-                    Type t = Nullable.GetUnderlyingType(targetProp.PropertyType) ?? targetProp.PropertyType;
-
-                    var value = dynamicValue.GetType() == t ? dynamicValue : Convert.ChangeType(dynamicValue, t);
-
-                    targetProp.SetValue(dto, value);
+                    var isNullable = targetProp.PropertyType.Name.Contains("Nullable");
+
+                    var type = Nullable.GetUnderlyingType(targetProp.PropertyType) ?? targetProp.PropertyType;
+
+                    // resolves issue where if the object property was a nullable number (int/double/etc.) and the value being processed
+                    // was null or an empty string an exception 'string was not in the correct format' occurred.
+                    // see https://github.com/squaredup/HubSpot.NET/pull/8
+                    if (isNullable && (dynamicValue?.ToString()).IsNullOrEmpty())
+                    {
+                        // if nullable and the value to convert is null or an empty string it should not be converted
+                        targetProp.SetValue(dto, null);
+                    }
+                    else
+                    {
+                        var value = dynamicValue.GetType() == type ? dynamicValue : Convert.ChangeType(dynamicValue, type);
+                        targetProp.SetValue(dto, value);
+                    }
                 }
             }
             return dto;