C# 创建器自定义枚举序列化错误

我试图让breeze与实体框架结合使用我的webapi，但当我试图查询使用自定义枚举的特定实体时，似乎遇到了问题

我正在使用breeze EDMbuilder为我的元数据生成edm模型

我的配置：

以及一个简单的Odatacontroller get函数，该函数返回ApiUserEntities的iqueryable：

这个错误不仅是当我用breeze查询它时出现的，而且是当我从浏览器中访问该方法时出现的

在生成的元数据文件中，apiuserentity如下所示：

我注意到的主要一点是，它为常见类型（如字符串和日期时间）添加了一个Edm前缀。但我的自定义枚举只是它们的完整名称空间。当我将自定义枚举的属性更改为int时，它将返回结果，但我确实希望使用这些枚举，而将它们转换为int并不是一个解决方案

---

我正在使用它找不到类型，也不知道如何解析它，但这只是使用而已。除此之外，我不知道如何解决这个问题，也不知道我应该从这里走到哪里。在过去的几个小时里，我一直在为这件事头疼，但没有结果

我使用以下类来构建Edm模型：

public class ApiUserEntity // : BaseEntity
{
        public int Id { get; set; }
        public string Username { get; set; }
        public string Password { get; set; }
        public string Email { get; set; }
        public string Salt { get; set; }

        public ApiUserRole Role { get; set; }

        public ApiPermission Permission { get; set; }
}

public enum ApiUserRole
{
        Admin,
        Guest
}

public enum ApiPermission
{
        Write,
        Read,
        WriteRead
}

以下是元数据文档：

<?xml version="1.0" encoding="utf-8"?>
<edmx:Edmx Version="4.0" xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx">
  <edmx:DataServices>
    <Schema Namespace="WebApplication1.Models" xmlns="http://docs.oasis-open.org/odata/ns/edm">
      <EntityType Name="ApiUserEntity">
        <Key>
          <PropertyRef Name="Id" />
        </Key>
        <Property Name="Id" Type="Edm.Int32" Nullable="false" />
        <Property Name="Username" Type="Edm.String" />
        <Property Name="Password" Type="Edm.String" />
        <Property Name="Email" Type="Edm.String" />
        <Property Name="Salt" Type="Edm.String" />
        <Property Name="Role" Type="WebApplication1.Models.ApiUserRole" Nullable="false" />
        <Property Name="Permission" Type="WebApplication1.Models.ApiPermission" Nullable="false" />
      </EntityType>
      <EnumType Name="ApiUserRole">
        <Member Name="Admin" Value="0" />
        <Member Name="Guest" Value="1" />
      </EnumType>
      <EnumType Name="ApiPermission">
        <Member Name="Write" Value="0" />
        <Member Name="Read" Value="1" />
        <Member Name="WriteRead" Value="2" />
      </EnumType>
    </Schema>
    <Schema Namespace="Default" xmlns="http://docs.oasis-open.org/odata/ns/edm">
      <EntityContainer Name="Container">
        <EntitySet Name="ApiUserEntitys" EntityType="WebApplication1.Models.ApiUserEntity" />
      </EntityContainer>
    </Schema>
  </edmx:DataServices>
</edmx:Edmx>

---

希望它能帮助你。谢谢。

我遇到了完全相同的问题。你找到解决办法了吗？

public class ApiUserEntity // : BaseEntity
{
        public int Id { get; set; }
        public string Username { get; set; }
        public string Password { get; set; }
        public string Email { get; set; }
        public string Salt { get; set; }

        public ApiUserRole Role { get; set; }

        public ApiPermission Permission { get; set; }
}

public enum ApiUserRole
{
        Admin,
        Guest
}

public enum ApiPermission
{
        Write,
        Read,
        WriteRead
}

<?xml version="1.0" encoding="utf-8"?>
<edmx:Edmx Version="4.0" xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx">
  <edmx:DataServices>
    <Schema Namespace="WebApplication1.Models" xmlns="http://docs.oasis-open.org/odata/ns/edm">
      <EntityType Name="ApiUserEntity">
        <Key>
          <PropertyRef Name="Id" />
        </Key>
        <Property Name="Id" Type="Edm.Int32" Nullable="false" />
        <Property Name="Username" Type="Edm.String" />
        <Property Name="Password" Type="Edm.String" />
        <Property Name="Email" Type="Edm.String" />
        <Property Name="Salt" Type="Edm.String" />
        <Property Name="Role" Type="WebApplication1.Models.ApiUserRole" Nullable="false" />
        <Property Name="Permission" Type="WebApplication1.Models.ApiPermission" Nullable="false" />
      </EntityType>
      <EnumType Name="ApiUserRole">
        <Member Name="Admin" Value="0" />
        <Member Name="Guest" Value="1" />
      </EnumType>
      <EnumType Name="ApiPermission">
        <Member Name="Write" Value="0" />
        <Member Name="Read" Value="1" />
        <Member Name="WriteRead" Value="2" />
      </EnumType>
    </Schema>
    <Schema Namespace="Default" xmlns="http://docs.oasis-open.org/odata/ns/edm">
      <EntityContainer Name="Container">
        <EntitySet Name="ApiUserEntitys" EntityType="WebApplication1.Models.ApiUserEntity" />
      </EntityContainer>
    </Schema>
  </edmx:DataServices>
</edmx:Edmx>

[EnableQuery]
public IQueryable<ApiUserEntity> GetApiUsers()
{
    return _userService.GetUsers();
}

   {
  "@odata.context":"http://localhost:40502/odata/$metadata#ApiUserEntitys","value":[
    {
      "Id":1,"Username":"UserName #1","Password":"Password #1","Email":"Email #1","Salt":"Salt E1","Role":"Admin","Permission":"WriteRead"
    },{
      "Id":2,"Username":"UserName #2","Password":"Password #2","Email":"Email #2","Salt":"Salt E2","Role":"Admin","Permission":"WriteRead"
    },{
      "Id":3,"Username":"UserName #3","Password":"Password #3","Email":"Email #3","Salt":"Salt E3","Role":"Admin","Permission":"WriteRead"
    },{
      "Id":4,"Username":"UserName #4","Password":"Password #4","Email":"Email #4","Salt":"Salt E4","Role":"Admin","Permission":"WriteRead"
    },{
      "Id":5,"Username":"UserName #5","Password":"Password #5","Email":"Email #5","Salt":"Salt E5","Role":"Admin","Permission":"WriteRead"
    }
  ]
}