Why does validation error occur even when requirements are filled

I'm trying to do login with blazor, but now the problem is that whenever I type in the data into inputtext fields I get validation error "this field is required" eventhough the information is entered. The model looks like this

 public class UserModel {     [Required(ErrorMessage = "Name is required")]     public string Name { get; set; }     [Required(ErrorMessage = "Surname is required")]     public string Surname { get; set; }     [Required(ErrorMessage = "Email is required")]     [EmailAddress(ErrorMessage = "Invalid email format")]     public string Email { get; set; }     [Required(ErrorMessage = "Password is required")]     [MinLength(6, ErrorMessage = "Password must be at least 6 characters long")]     public string PasswordHash { get; set; } }

I doubt that this part is the problem, but dataAccess file that should contact database and insert data looks like this

    public async Task<int> RegisterUser(UserModel user, string connectionString)    {        user.PasswordHash = BCrypt.Net.BCrypt.HashPassword(user.PasswordHash);        string sql = @"    INSERT INTO Users (Name, Surname, Email, PasswordHash)     VALUES (@Name, @Surname, @Email, @PasswordHash);";        using (IDbConnection connection = new MySqlConnection(connectionString))        {            return await connection.ExecuteAsync(sql, user);        }    }

and the form which I try to insert data into looks like this

<EditForm EditContext="@editContext" OnValidSubmit="HandleRegister" FormName="registerForm"><DataAnnotationsValidator /><ValidationSummary /><InputText @bind-Value="userModel.Name" Placeholder="Name" /><InputText @bind-Value="userModel.Surname" Placeholder="Surname" /><InputText @bind-Value="userModel.Email" Placeholder="Email" /><InputText @bind-Value="userModel.PasswordHash" Placeholder="Password" type="password" /><button type="submit">Register</button></EditForm>

The problem is like I said, whenever I try to submit input data, I get the verification error message, even if required data is inserted.