C# Odata v4 open type raw values

C# Odata v4 open type raw values

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C# Odata v4 open type raw values
Tag : chash , By : besn
Date : November 24 2020, 03:01 PM

I hope this helps you . @Max Xapi
OData hasn't the built-in logic to support $value for dynamic property.

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Unable to cast object of type 'Microsoft.OData.Edm.Csdl.CsdlSemantics.UnresolvedType' to type 'Microsoft.OData.Edm.IEdmC

Tag : chash , By : turret
Date : March 29 2020, 07:55 AM
this will help The problem turned out to be an upgrade from: OData Client T4 Template ver. 2.2.0 to OData Client T4 Template ver. 2.4.0
Between the versions a few new items are added that make your old *.TTInclude files useless.
<#@ Import Namespace="Microsoft.OData.Edm.Vocabularies.Community.V1" #>
tmp.FindDeclaredValueTerm(AlternateKeysVocabularyConstants.AlternateKeys) != null)
internal abstract void WriteEntityTypeAttribute();

WebApi OData query with complex type ignores nested values

Tag : entity-framework , By : mobi phil
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Using Entity Framework I created an DbContext. The Dbcontext is created within a WebApi project. One of the tables from the DbContext represents buildings. The location is represented as a Geography type in the database. I need to query the buildings and sort the result by the distance to a given location. , You should have
public IHttpActionResult GetBuildingDistances()
    var query =
            x =>
                new BuildingDistance
                    Id = x.id,
                    Street = x.location_street,
                    Building = x,
                    Distance = x.GeoLocation.Distance(myLocation)
    return Ok(query as IQueryable<BuildingDistance);

Odata v4 error "Does not support untyped value in non-open type"

Tag : rest , By : user183842
Date : March 29 2020, 07:55 AM
may help you . I've experienced this error before and it's caused by passing a property of a JSON object that doesn't exist on the data model.
For example, given the data model:
public class User
    public long UserId { get; set; }

    public string UserName { get; set; }
public IHttpActionResult Post(User user)
    "UserId": "0",
    "UserName": "test",
    "UserPassword": "test"
    "error": {
        "code": "",
        "message": "The request is invalid.",
        "innererror": {
            "message": "user : Does not support untyped value in non-open type.\r\n",
            "type": "",
            "stacktrace": ""

How to $select on OData Open Data Type? Query not valid error

Tag : chash , By : deanschang
Date : March 29 2020, 07:55 AM
Any of those help Thank you for answering me, saying that it should work, it made look harder. As Sam Xu noted, it works with the key "foo", and I tested it on my dict and it worked. It made me think that OData doens't take a number as a key, and it doesn't. I solved my problem by appending the letter 'a' in front of each year number, and know it selects just fine.

How to support a nested open complex type in the OData C# driver?

Tag : chash , By : Eran Yahav
Date : March 29 2020, 07:55 AM
seems to work fine I'm in the same boat as you. I need to expose some data as pure JSON. This is a working solution using the ODataUntypedValue class. It serializes to what you would expect. I tested it with your models and mine.
Implement a MongoDataSerializer class:
public class MongoDataSerializer: ODataResourceSerializer
    public MongoDataSerializer(ODataSerializerProvider serializerProvider)
        : base(serializerProvider)

    /// <summary>
    /// Serializes the open complex type as an <see cref="ODataUntypedValue"/>.
    /// </summary>
    /// <param name="graph"></param>
    /// <param name="expectedType"></param>
    /// <param name="writer"></param>
    /// <param name="writeContext"></param>
    public override void WriteObjectInline(
        object graph,
        IEdmTypeReference expectedType,
        ODataWriter writer,
        ODataSerializerContext writeContext)
        // This cast is safe because the type is checked before using this serializer.
        var mongoData = (MongoData)graph;
        var properties = new List<ODataProperty>();

        foreach (var item in mongoData.Document)
            properties.Add(new ODataProperty
                Name = item.Key,
                Value = new ODataUntypedValue
                    RawValue = JsonConvert.SerializeObject(item.Value),

        writer.WriteStart(new ODataResource
            TypeName = expectedType.FullName(),
            Properties = properties,

public class CustomODataSerializerProvider : DefaultODataSerializerProvider
    private readonly MongoDataSerializer mongoDataSerializer;

    public CustomODataSerializerProvider(
        IServiceProvider odataServiceProvider)
        : base(odataServiceProvider)
        this.mongoDataSerializer = new MongoDataSerializer(this);

    public override ODataEdmTypeSerializer GetEdmTypeSerializer(IEdmTypeReference edmType)
        if (edmType.FullName() == typeof(MongoData).FullName)
            return this.mongoDataSerializer;

        return base.GetEdmTypeSerializer(edmType);
        app.UseMvc(options =>
            var model = builder.GetEdmModel();
                    b => b
                            .AddService(Microsoft.OData.ServiceLifetime.Scoped, s => model)
                                s => ODataRoutingConventions.CreateDefaultWithAttributeRouting("odata", options))
                            .AddService<ODataSerializerProvider, CustomODataSerializerProvider>(Microsoft.OData.ServiceLifetime.Singleton));
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