How to change error message in ASP.NET Identity

Question

I have one question. I\'m trying change error message in Identity ASP .NET and I don\'t know how do it. I want change error message - \"Login is already taken\". CreateAsync m

Answer 1

private void AddErrors(IdentityResult result)
{
    foreach (var error in result.Errors)
    {
        if (error.StartsWith("Name"))
        {
            var NameToEmail= Regex.Replace(error,"Name","Email");
            ModelState.AddModelError("", NameToEmail);
        }
        else
        {
            ModelState.AddModelError("", error);
        }
    }
}