where is password must have at least one lowercase ['a'-'z'] message in mvc 5

Question

in registration form when user enter just numeric character it shows "password must have at least one lowercase ['a'-'z']", I need to translate it in my native language, where can I find this message?

Answer 1

Firstly, install the identity localized package in Package Manager Console:

Install-Package Microsoft.AspNet.Identity.Core.tr

(.tr or your localization code .it, .es, .de, .fr etc.)

Then set culture in web.config:

<system.web>
      <globalization culture="tr-TR" uiCulture="tr"/>
</system.web>

Now, your identity messages will be automatically set according to your language.

Answer 2

These messages are provided by framework, not from your model, so you cannot use data annotations for this. But you can solve the problem in another way:

Step 1: Create resource file for your controller or use shared resource. For example, if your controller is /Controllers/AccountController.cs, then resource file should be Controllers.AccountController.de.resx in your resources folder (depending on configuration; instead of de use your locale code).

Step 2: Write translations for strings: PasswordRequiresLower, PasswordRequiresNonAlphanumeric, PasswordRequiresUpper. These strings are codes of identity errors. You can see them during debug of registration process after failed registration.

Step 3: Do not forget to use localizer in your controller

using Microsoft.Extensions.Localization;

public class AccountController : Controller
{    
    private readonly IStringLocalizer<AccountController> _localizer;

    public AccountController(IStringLocalizer<AccountController> localizer)
    {
        _localizer = localizer;
    }

    // Another code of AccountController class.
}

Step 4: Add translated descriptions for errors in registration action

var result = await _userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
    // User account created.
    return RedirectToAction("Index", "Home");
}
// User account creation failed.
foreach (var error in result.Errors)
{
    ModelState.AddModelError(error.Code, _localizer[error.Code]);
}