MVC复杂类型的模型绑定

时间:2023-03-09 19:47:51
MVC复杂类型的模型绑定

1,属性为引用类型(非集合,非数组)

//模型1
public class Contact
{
public string Name { get; set; }
public string PhoneNo { get; set; }
public string EmailAddress { get; set; }
public Address MyAddress { get; set; }
}
public class Address
{
public string Province { get; set; }
public string City { get; set; }
public string District { get; set; }
public string Street { get; set; }
}
//请求表单范例,name属性,具有显著的层次结构,注意子属性前缀用的是属性名MyAddress
<input name="Name" type="text" ... />
<input name="PhoneNo" type="text" ... />
<input name="EmailAddress" type="text" ... />
<input name="MyAddress.Province" type="text" ... />
<input name="MyAddress.City" type="text" ... />
<input name="MyAddress.District" type="text" ... />
<input name="MyAddress.Street" type="text"... />
public ActionResult Action(Contact foo){}

2,基于名称的简单类型数组绑定(名称必须相同)

//数据源范例
<input name="Foo" type="text" value=""/>
<input name="Foo" type="text" value="" />
<input name="Foo" type="text" value="" />
Public ActionResult ActionMethod(string[] foo){}//action的参数名“foo”,必须与表单中的name的值匹配

3,基于索引的对象数组绑定(索引必须从0开始,且连续,不连续会导致后面的绑定丢失)

//请求表单范例
<input name="[0].Name" type="text" value="" .../>
<input name="[0].PhoneNo" type="text" ... />
<input name="[0].EmailAddress" type="text" ... />
<input name="[1].Name" type="text" value="" .../>
<input name="[1].PhoneNo" type="text" ... />
<input name="[1].EmailAddress" type="text" ... />
 public ActionResult Index(Contact[] contacts){}

4,集合(除数组和字典之外的所有实现IEnumerable<T>接口的类型)

//请求表单范例
<input name="[0].Name" type="text" value="" .../>
<input name="[0].PhoneNo" type="text" value="" .../>
<input name="[0].EmailAddress" type="text" value="" .../> <input name="[1].Name" type="text" value="" .../>
<input name="[1].PhoneNo" type="text" value="" .../>
<input name="[1].EmailAddress" type="text" value="" .../>
//集合范例
public ActionResult Action(IEnumerable<Contact> contacts){
foreach (var contact in contacts){}
}

5,字典(实现了接口IDictionary<TKey,TValue>的类型)

//请求表单范例,注意Key的值不能重复,且索引要连续
<input name="[0].Key" type="text" value="Foo" .../>
<input name="[0].Value.Name" type="text" value="" .../>
<input name="[0].Value.PhoneNo" type="text" value="" .../>
<input name="[0].Value.EmailAddress" type="text" value="a@z.com" .../> <input name="[1].Key" type="text" value="Bar" .../>
<input name="[1].Value.Name" type="text" value="Bar" .../>
<input name="[1].Value.PhoneNo" type="text" value="" .../>
<input name="[1].Value.EmailAddress" type="text" value="b@z.com" .../>
public ActionResult Action(IDictionary<string, Contact> contacts)
{
foreach (string key in contacts.Keys)
{
Contact contact = contacts[key];
}
}

6,混合应用,属性是数组

public class QuizAnswer
{
public int QuizId { get; set; }
public string[] QuizAnswerArray { get; set; }//答案为数组 }
<!--第一题,单选-->
<input name="[0].QuizId" type="hidden" value="" />
<input name="[0].QuizAnswerArray" type="radiobox" value="A" />
<input name="[0].QuizAnswerArray" type="radiobox" value="B" />
<input name="[0].QuizAnswerArray" type="radiobox" value="C" />
<input name="[0].QuizAnswerArray" type="radiobox" value="D" /> <!--第二题,多选-->
<input name="[1].QuizId" type="hidden" value="" />
<input name="[1].QuizAnswerArray" type="checkbox" value="A" />
<input name="[1].QuizAnswerArray" type="checkbox" value="B" />
<input name="[1].QuizAnswerArray" type="checkbox" value="C" />
<input name="[1].QuizAnswerArray" type="checkbox" value="D" />
//控制器代码
public ActionResult SubmitAnswer(QuizAnswer[] answerArray)
{
foreach (var answer in answerArray)
{
}
}

7,混合应用,属性是集合

模型:属性是集合的情况

//公司
public class Company
{
public string Name { get; set; }
public string City { get; set; }
public IList<Job> JobList{ get; set; }//这里是个集合
}
//职位
public class Job
{
public string Title{ get; set; }
public string Detail{ get; set; }
}
//注意集合的前缀为List
<input name="Name" type="text" ... />
<input name="City" type="text" ... /> <input name="JobList[0].Title" type="text" ... />
<input name="JobList[0].Detail" type="text" ... /> <input name="JobList[1].Title" type="text" ... />
<input name="JobList[1].Detail" type="text" ... /> <input name="JobList[2].Title" type="text" ... />
<input name="JobList[2].Detail" type="text" ... />
//controller
Public ActionResult ActionMethod(Company company)
{
foreach(var job in company.JobList){}
}

参考http://www.cnblogs.com/artech/archive/2012/05/30/default-model-binding-02.html