Question

我有一个ASP.NET MVC应用程序，并希望在两个级别上进行验证 - 视图模型验证和基于数据注释属性的域模型验证。视图模型验证工作简单：

public class CustomerFormVM
{
    [Required]
    [Display(Name = "Name")]
    public string Name { get; set; }
    [Required]
    [Display(Name = "Street")]
    public string Street { get; set; }
    [Required]
    [Display(Name = "City")]
    public string City { get; set; }
    [Required]
    [Display(Name = "State")]
    public string State { get; set; }
}

然后在控制器中调用：

        if (ModelState.IsValid)
        {

我有相同的域模型类：

public class CustomerFormPoco
{
    [Required]
    [Display(Name = "Name")]
    public string Name { get; set; }
    [Required]
    [Display(Name = "Street")]
    public string Street { get; set; }
    [Required]
    [Display(Name = "City")]
    public string City { get; set; }
    [Required]
    [Display(Name = "State")]
    public string State { get; set; }
}

但如何验证？

// viewmodel is CustomerFormVM object
var pocoModel = mapper.Map<CustomerFormPoco>(viewmodel);

如果我不检查“视图模式”。变量然后我得到了pocoModel＆＃39;可变的可变名称，街道，城市......

如何调用验证并做出决定取决于结果？

Answer 1

这样的事情怎么样？

if (!string.IsNullOrEmpty(pocoModel.Name) && !string.IsNullOrEmpty(pocoModel.Street) && !string.IsNullOrEmpty(pocoModel.City) && !string.IsNullOrEmpty(pocoModel.State))
{
    // Code here
}

我可能会用这样的冗余来做这件事：

string[] fields = new string[] { pocoModel.Name, pocoModel.Street, pocoModel.City, pocoModel.State };
bool isValid = true;
foreach (string field in fields)
{
    if (string.IsNullOrEmpty(field))
    {
        isValid = false;
        break;
    }
}
if (isValid)
{
    // Code here
}

MVC - 验证域模型

1 个答案: