BreezeSharp - 枚舉序列化失敗

Question

這個問題的BreezeSharp - ExecuteQuery fails with NullReferenceExeption

在我的服務器端實體續集我有枚舉屬性：

[Required] 
public DataStore DataStore { get; set; } 

這個屬性在客戶端實體被這樣定義：

public DataStore DataStore 
    { 
     get { return GetValue<DataStore>(); } 
     set { SetValue(value); 
    } 

當控制器方法向客戶端返回數據時，會發生序列化錯誤：「輸入字符串格式不正確「

這裏是堆棧跟蹤：

at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) 
    at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) 
    at System.String.System.IConvertible.ToInt32(IFormatProvider provider) 
    at System.Convert.ToInt32(Object value, IFormatProvider provider) 
    at Newtonsoft.Json.Linq.JToken.op_Explicit(JToken value) 
    at Newtonsoft.Json.Linq.JToken.ToObject(Type objectType) 
    at Breeze.Sharp.JsonEntityConverter.<>c__DisplayClassa.<ParseObject>b__6(KeyValuePair`2 kvp) in c:\GitHub\breeze.sharp\Breeze.Sharp\JsonEntityConverter.cs:line 195 
    at Breeze.Sharp.Core.EnumerableFns.ForEach[T](IEnumerable`1 items, Action`1 action) in c:\GitHub\breeze.sharp\Breeze.Sharp\Core\EnumerableFns.cs:line 35 
    at Breeze.Sharp.JsonEntityConverter.ParseObject(NodeContext nodeContext, EntityAspect targetAspect) in c:\GitHub\breeze.sharp\Breeze.Sharp\JsonEntityConverter.cs:line 180 
    at Breeze.Sharp.JsonEntityConverter.PopulateEntity(NodeContext nodeContext, IEntity entity) in c:\GitHub\breeze.sharp\Breeze.Sharp\JsonEntityConverter.cs:line 152 
    at Breeze.Sharp.JsonEntityConverter.CreateAndPopulate(NodeContext nodeContext) in c:\GitHub\breeze.sharp\Breeze.Sharp\JsonEntityConverter.cs:line 143 
    at Breeze.Sharp.JsonEntityConverter.ReadJson(JsonReader reader, Type objectType, Object existingValue, JsonSerializer serializer) in c:\GitHub\breeze.sharp\Breeze.Sharp\JsonEntityConverter.cs:line 82 
    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable(JsonConverter converter, JsonReader reader, Type objectType, Object existingValue) 
    at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id) 

當我排除模型數據存儲性能，一切工作正常。它看起來像BreezeSharp試圖解析枚舉爲int。

我嘗試將客戶端屬性定義爲字符串，但這會引發不一致的CLRPropertyDefinition元數據不匹配。我也試圖定義這樣的客戶端屬性：

公衆的DataStore數據存儲 { 得到 {VAR 的數據存儲= this.GetValue（ 「數據存儲」）; 返回DataStore.DEV; } set {this.SetValue（value）; } } 但是在get命中之前就會出現問題。

我看着JsonEntityConverter.cs，它看起來像枚舉沒有在這一點上另案處理：

private void ParseObject(NodeContext nodeContext, EntityAspect targetAspect) { 
     // backingStore will be null if not allowed to overwrite the entity. 
     var backingStore = (targetAspect == null) ? null : targetAspect.BackingStore; 
     var dict = (IDictionary<String, JToken>) nodeContext.Node; 
     var structuralType = nodeContext.StructuralType; 
     // needs to be the current namingConvention 
     var nc = _mappingContext.EntityManager.MetadataStore.NamingConvention; 
     dict.ForEach(kvp => { 
     var key = nc.ServerPropertyNameToClient(kvp.Key, structuralType); 
     var prop = structuralType.GetProperty(key); 
     if (prop != null) {   
      if (prop.IsDataProperty) { 
      if (backingStore != null) { 
       var dp = (DataProperty)prop; 
       if (dp.IsComplexProperty) { 
       var newCo = (IComplexObject) kvp.Value.ToObject(dp.ClrType); 
       var co = (IComplexObject)backingStore[key]; 
       var coBacking = co.ComplexAspect.BackingStore; 
       newCo.ComplexAspect.BackingStore.ForEach(kvp2 => { 
        coBacking[kvp2.Key] = kvp2.Value; 
       }); 
       } else { 
       backingStore[key] = kvp.Value.ToObject(dp.ClrType); 
       } 

有誰已經知道在哪裏從這裏出發？

Answer 1

這已在Breeze 0.5.5中修復，現在可用。