一起谈.NET技术，ASP.NET MVC中对Model进行分步验证的解决方法

public class UserViewModel
{
[DisplayName( " step " )]
[Required(ErrorMessage = " You must select a step . " )]
public int Step { get ; set ; }
// 个人信息
[Required(ErrorMessage = " 姓名不能为空 " )]
[StringLength( 20 , ErrorMessage = " 姓名长度不能超过20个字符 " )]
public string Name { get ; set ; }

[RegularExpression( @" 120|((1[0-1]|\d)?\d) " , ErrorMessage = " 年龄格式不对 " )]
public int ? Age { get ; set ; }

// 职位信息
[Required(ErrorMessage = " 职位不能为空 " )]
public string Post { get ; set ; }
public int ? Salary { get ; set ; }

// 学历信息
[Required(ErrorMessage = " 毕业院校不能为空 " )]
public string University { get ; set ; }
public int ? GraduationYear { get ; set ; }

// 联系信息
[Required(ErrorMessage = " 邮件不能为空 " )]
[RegularExpression( @" ^[a-z][a-z|0-9|]*([_][a-z|0-9]+)*([.][a-z| " + @" 0-9]+([_][a-z|0-9]+)*)?@[a-z][a-z|0-9|]*\.([a-z] " + @" [a-z|0-9]*(\.[a-z][a-z|0-9]*)?)$ " , ErrorMessage = " 邮件格式不正确 " )]
public string Email { get ; set ; }
public int ? Mobile { get ; set ; }

public IEnumerable < SelectListItem > StepList { get ; set ; }

public UserViewModel()
{
var list = new List < SelectListItem > () {
new SelectListItem { Text = " (Select) " },
new SelectListItem { Value = " 1 " , Text = " Step1 " },
new SelectListItem { Value = " 2 " , Text = " Step2 " },
new SelectListItem { Value = " 3 " , Text = " Step3 " },
new SelectListItem { Value = " 4 " , Text = " Step4 " }
};
this .StepList = new SelectList(list, " Value " , " Text " );
}


}