private async Task CheckLogin()
    {
        try
        {

            if (string.IsNullOrWhiteSpace(Username) || string.IsNullOrWhiteSpace(Password)) { return; }

            var result = await SignManager.PasswordSignInAsync(Username, Password, false, true);
        }
        catch (Exception ex)
        {
            var m = ex.Message;
            var i = 0;
        }
    }