Get error message if ModelState.IsValid fails?

by

Try this

if (ModelState.IsValid)
{
    //go on as normal
}
else
{
    var errors = ModelState.Select(x => x.Value.Errors)
                           .Where(y=>y.Count>0)
                           .ToList();
}

errors will be a list of all the errors.

If you want to display the errors to the user, all you have to do is return the model to the view and if you haven’t removed the Razor @Html.ValidationFor() expressions, it will show up.

if (ModelState.IsValid)
{
    //go on as normal
}
else
{
    return View(model);
}

The view will show any validation errors next to each field and/or in the ValidationSummary if it’s present.

More Related Contents:

  1. How do I get the contents of a JSON file I added in the StartUp method to use it in one of my actions?
  2. c# asp.net delete last comma [closed]
  3. Sharing sessions across applications using the ASP.NET Session State Service
  4. Making a Simple Ajax call to controller in asp.net mvc
  5. How do I do pagination in ASP.NET MVC?
  6. How do I export to Excel?
  7. MVC which submit button has been pressed
  8. Difference between MVC 5 Project and Web Api Project
  9. Passing object in RedirectToAction
  10. How do I dispose my filestream when implementing a file download in ASP.NET?
  11. Visual Studio 2015 not syntax highlighting razor nor Intellisense
  12. Does FileStreamResult close Stream?
  13. Display custom error page when file upload exceeds allowed size in ASP.NET MVC
  14. Child actions are not allowed to perform redirect actions, after setting the site on HTTPS [duplicate]
  15. Why is Asp.Net Identity IdentityDbContext a Black-Box?
  16. TempData null in asp.net core
  17. Update multiple records at once in asp.net mvc
  18. ASP.NET Identity – Multiple object sets per type are not supported
  19. How can I secure passwords stored inside web.config?
  20. onchange event for html.dropdownlist
  21. How to add Web API to an existing ASP.NET MVC (5) Web Application project?
  22. Storing more information using FormsAuthentication.SetAuthCookie
  23. ASP.NET 5 MVC: unable to connect to web server ‘IIS Express’
  24. {version} wildcard in MVC4 Bundle
  25. System.web.mvc missing
  26. How to route EVERYTHING other than Web API to /index.html
  27. ASP.NET – AppDomain.CurrentDomain.GetAssemblies() – Assemblies missing after AppDomain restart
  28. Opposite of [compare(” “)] data annotation in .net?
  29. Asp.Net Routing: How do I ignore multiple wildcard routes?
  30. An error occurred attempting to determine the process id of dotnet.exe which is hosting your application. One or more error occured

Leave a Comment