ASP.net核心OData字符串键为空

Question

I have a strange one here. I've been porting some controllers over from asp.net odata to asp.net core odata and ran into a bit of a snag with the primary keys.

In my .net framework 4.6.2 app I have a GUID as a primary key and in the .net core app I have a string as a primary key. I've been able to get most everything working EXCEPT a Get(key) method. This is my method signature:

[HttpGet]
[EnableQuery]
public async Task<IActionResult> Get([FromODataUri] string key)
{
    // key is null!
}

Answer 1

Please Below Follow step

1. Install Microsoft.AspNetCore.OData from NuGet Package

2. StartUp.cs

     public void ConfigureServices(IServiceCollection services) { services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); services.AddOData(); //This Is added for OData } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { app.UseHsts(); } app.UseHttpsRedirection(); app.UseMvc(routeBuilder => { routeBuilder.EnableDependencyInjection(); //This Is added for OData routeBuilder.Expand().Select().Count().OrderBy().Filter(); //This Is added for OData }); } 

3. In Api Conteroller

    [HttpGet] [EnableQuery] //This Is added for OData public ActionResult<List<TestModel>> Get() { var model = new List<TestModel>(); for (int i = 1; i <= 10; i++) { var res = new TestModel() { ID = i, Name="Test"+i, Mobile="Test"+i, City="Test_"+i }; model.Add(res); } return model; } public class TestModel { public int ID { get; set; } public string Name { get; set; } public string Mobile { get; set; } public string City { get; set; } } 

4. After Run Api And Check Like This