Remove [EnableQuery] attribute, your scenario should work, because after using this attribute, OData/WebApi will apply your original query option after you return data in controller, if you already apply in your controller method, then you shouldn’t use that attribute. But if your query option contains $select, those code are not working because the result’s type … Read more
I did this for a small project to get something up and running to demo to a client. Once I got into specifics of business rules, validation and other considerations, I ended up having to override the CRUD methods from my base class so it didn’t pan out as a long term implementation. I ran … Read more
If you use Json.Net’s LINQ-to-JSON API (JTokens, JObjects, etc.) to parse the JSON, you can tell the difference between a null value and a field that simply doesn’t exist in the JSON. For example: JToken root = JToken.Parse(json); JToken nested = root[“nested”]; if (nested != null) { if (nested.Type == JTokenType.Null) { Console.WriteLine(“nested is set … Read more
This seems to be a common issue in regards to Asp.Net WebAPI. Generally the cause of null objects is the deserialization of the json object into the C# object. Unfortunately, it is very difficult to debug – and hence find where your issue is. I prefer just to send the full json as an object, … Read more
Try something like this: IEnumerable<string> headerValues = request.Headers.GetValues(“MyCustomID”); var id = headerValues.FirstOrDefault(); There’s also a TryGetValues method on Headers you can use if you’re not always guaranteed to have access to the header.
It seems that ASP.net does not allow colons before the ‘?’ in an URL, even if it is encoded as %3A. For example, these won’t work http://foo.org/api/persons/foo:bar http://foo.org/api/persons/foo%3abar But this works: http://foo.org/api/persons?id=foo%3abar In all examples, we would expect ASP.NET MVC to pass “foo:bar” as an id argument, properly decoded. I just tested this with MVC4 … Read more
You have to set HttpContext.Current.User as well. See this answer and this blog post for more info. Update: Also ensure you are running on .NET 4.5 and have UserTaskFriendlySynchronizationContext set to true.
You have to call “AddNavigationTarget” on the EntitySet. Assume that your namespace is “MyNamespace”, then add the following code to your WebApiConfig.cs. In this way, retrieving the data with “Get: odata/Cars(1)/Parts” will work. var cars = (EdmEntitySet)edmModel.EntityContainers().Single().FindEntitySet(“Cars”); var parts = (EdmEntitySet)edmModel.EntityContainers().Single().FindEntitySet(“Parts”); var carType = (EdmEntityType)edmModel.FindDeclaredType(“MyNamespace.Car”); var partType = (EdmEntityType)edmModel.FindDeclaredType(“MyNamespace.Part”); var partsProperty = new EdmNavigationPropertyInfo(); partsProperty.TargetMultiplicity … Read more
It is a useful question👍 and I hope this help: A) If you have created your models manually (without Entity Framework), mark the relation properties as virtual first. If your models were created by EF, It has already done it for you and each Relation Property is marked as virtual, as seen below: Sample class: … Read more
Instead of submit button can you try with normal button – <form enctype=”multipart/form-data”> <label> Using JQuery </label> <input name=”file” type=”file” id=”me” /> <input type=”button” id=”Upload” value=”Upload” /> </form> <script src=”https://stackoverflow.com/questions/21497944/~/Scripts/jquery-1.10.2.min.js”></script> <script type=”text/javascript”> $(function () { $(‘#Upload’).click(function () { var formData = new FormData(); var opmlFile = $(‘#me’)[0]; formData.append(“opmlFile”, opmlFile.files[0]); $.ajax({ url: ‘http://localhost:23133/api/file’, type: ‘POST’, data: … Read more