将自定义SignInResults添加到从SignInManager<TUser> PasswordSignInAsync返回的内容中

// 自定义的SignInResult类
public class CustomSignInResult : SignInResult
{
    public string ErrorCode { get; set; }
    public string ErrorMessage { get; set; }

    public CustomSignInResult(bool succeeded, string errorCode, string errorMessage)
        : base(succeeded)
    {
        ErrorCode = errorCode;
        ErrorMessage = errorMessage;
    }
}

// 登录的业务逻辑
public async Task<IActionResult> Login(LoginViewModel model)
{
    if (ModelState.IsValid)
    {
        var result = await _signInManager.PasswordSignInAsync(model.UserName, model.Password, model.RememberMe, lockoutOnFailure: false);

        if (result.Succeeded)
        {
            // 登录成功
            // 添加自定义的SignInResults
            var customResult = new CustomSignInResult(true, "CustomErrorCode", "CustomErrorMessage");
            // 设置自定义的属性值
            customResult.ErrorCode = "CustomErrorCode";
            customResult.ErrorMessage = "CustomErrorMessage";

            // 返回自定义的SignInResult对象
            return Ok(customResult);
        }
        else
        {
            // 登录失败
            return BadRequest(result);
        }
    }

    return BadRequest();
}