using System.Diagnostics; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.RazorPages; namespace webmusic.Pages { [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)] public class ErrorModel : PageModel { public string RequestId { get; set; } public bool ShowRequestId => !string.IsNullOrEmpty(RequestId); public void OnGet() { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier; } } }