var tags = _blogRepository.GetAllTags(blogID).OrderBy(s => s.Id);
    var currenttags = _mapper.Map<IList<TagsViewModel>>(tags);
            if (currenttags == null)
            {
                return NotFound();

            }
            return Json(currenttags.AsQueryable()
                       .ToDataSourceResult(request.Take, request.Skip, request.Sort,
                                                       request.Filter));

No type was specified for the decimal column 'Price' on entity type 'Movie'. 
This will cause values to be silently truncated if they do not fit in the default precision and scale.

public class Movie
{
    public int ID { get; set; }

    [Column(TypeName = "decimal(18, 2)")]
    public decimal Price { get; set; }
}

protected override void OnModelCreating(ModelBuilder builder)
{
    base.OnModelCreating(builder);

    foreach (var property in builder.Model.GetEntityTypes()
                                    .SelectMany(t => t.GetProperties())
                                    .Where(p => p.ClrType == typeof(decimal)
                                                || p.ClrType == typeof(decimal?)))
    {
       property.SetColumnType("decimal(18, 6)");
    }
}

public class WeatherForecastService
{
    private readonly DataService _dataService;
    public WeatherForecastService(DataService dataService)
    {
        _dataService = dataService;
    }

public class WeatherForecastController : ControllerBase
{
    private readonly WeatherForecastService _service;
    public WeatherForecastController(WeatherForecastService service)
    {
        _service = service;
    }

public void ConfigureServices(IServiceCollection services)
{
    services.AddControllers();
    services.AddSingleton<WeatherForecastService>();

Unhandled exception. System.AggregateException: Some services are not able to be constructed
(Error while validating the service descriptor 
    'ServiceType: TestApp.WeatherForecastService Lifetime: Scoped ImplementationType:
     TestApp.WeatherForecastService': Unable to resolve service for type
    'TestApp.DataService' while attempting to activate 'TestApp.WeatherForecastService'.)