odata

问题 I have created an OData service and now I am trying to consume this service at client side. I wants to create an expression such as for the below url in the c# query expression- http://odata.org/Product-Service/Product(150) The above url is working fine in browsers but I want to create query expression in the C# for the above url. Any help would be greatly appreciable. 回答1: You could use a DataServiceContext + DataServiceQuery in System.Data.Services.Client to hit the Url. Remember no query

问题 EDIT-2: After hours of research and almost every odata related link on google turning purple, I found out that the concept of 'deep-inserts' (link) exists in the OData specification. So after all, what I'm doing should work, even without the links. Does anyone know how to enable this on the Microsoft OData client? Are there any other OData clients out there that support that concept? EDIT: Maybe this is the wrong approach, so please tell me if I'm doing it totally wrong. Not being able to

问题 Situation: kendo DataSource var ordersDataSource = new kendo.data.DataSource({ type: "odata", transport: { read: { url: "http://localhost/odata.svc/Orders?$expand=OrderDetails" } }, schema: { type: "json", data: function(response){ return response.value; } total: function(response){ return response['odata.count']; } }, serverPaging: true, serverFiltering: true, serverSorting: true }) the json data read from the odata source is like: { odata.metadata: "xxxx", odata.count: "5", value: [ {

问题 I have a Product odata controller and a Product Category odata controller. They are both using entity framework entities and have navigation methods used for odata expand. The expand for both is working fine. Now I added a stored procedure in entity framework to manipulate the data returned from the database and still return a "Product" record. I set the entity stored procedure function return type to "Product" and created a new function in the Product odata controller to call the entity

问题 I'm using OData framework 5.0.0 and Web API 5.0.0 and EntityFramework 5.0.0. And have problem with expand on navigation property which is a collection. I always get the following exception: The 'ObjectContent`1' type failed to serialize the response body for content type 'application/json; charset=utf-8'. The given key was not present in the dictionary. at System.Web.Http.OData.Query.Expressions.SelectExpandWrapper`1.GetEdmType() at System.Web.Http.OData.Formatter.Serialization

问题 I'm a little bit confused that metadata doucment in OData Service. As odata-v4.0-part1-protocol doc mentioned, there are two well-defined resources that describe its data model, a service document and a metadata document. I want to know if that means both of these two resources must be implemented during development of OData Services, or developers just only need to implement one of them by their own choices? I do appreciate anyone's help. Thanks 回答1: Not necessarily. According to the "13.1

问题 I'm following this guide to migrate an app I developed to an open framework. I get to the part where I'm supposed to install all the OData references. Specifically these: Install-Package Angularjs Install-Package Microsoft.OData.Client Install-Package Microsoft.OData.Core Install-Package Microsoft.OData.Edm Install-Package Microsoft.Spatial Install-Package Microsoft.AspNet.OData Install-Package Microsoft.AspNet.WebApi.WebHost And these are the errors I get: Unable to resolve dependencies.

问题 I defined a service in dataSources "dataSources": { "mainService": { "uri": "/backend/service/v1/entity.svc/", "type": "OData", } } "models": { "": { "dataSource": "mainService", "preload": true, "settings" : { "sizeLimit" : 500, "useBatch" : false, "refreshAfterChange": false, "defaultBindingMode": "TwoWay", "defaultCountMode" : "None", "defaultUpdateMethod" : "Put" } } } But for some reason I don't know, ui5 project will call GET /backend/service/v1/entity.svc/ when initial load, which

问题 Im writing an OData webservice with C# and I need some advice on how to handle invalid requests? An example of an error would be if a customer requested a service on an item they no longer own. I would idealy like to report back to the customer exactly why it is invalid as there are multiple possible reasons. Many thanks 回答1: I would recommend using FaultContracts as part of the OperationContract. You can define them just like DataContracts, and handle exceptions just like a custom exception.

问题 In my project I use OData 3.0 and I need to handle error that comes from SQL stored procedure. Here is the controller code: public class StartProductionBatchListController : ODataController { private SitContext<StartProductionBatchModel> db = new SitContext<StartProductionBatchModel>(); [EnableQuery] [SITAuthorize("/production/ordersOverview")] public DbRawSqlQuery<StartProductionBatchModel> GetStartProductionBatchList([FromODataUri] string entryId) { Dictionary<string, string> parameters =