asp.net mvc中的模型绑定可以在提交http请求的时候，进行数据的映射。
1.没有模型绑定的时候
public ActionResult Example0()
{
if (Request.Form.Count > )
{
string id = Request.Form["Id"];
string fname =Request.Form["FirstName"];
string lname = Request.Form["LastName"];
ViewBag.StatusMessage = "Employee data received successfully for ID " + id + "!";
}
return View();
}
2.简单绑定数据
[HttpPost]
public ActionResult Example1(string id, string firstname, string lastname)
{
ViewBag.StatusMessage = "Employee data received successfully for ID " + id + "!";
return View();
}
页面内容
<tr>
...
<td>
<input name="Id" type="text" />
</td>
</tr>
<tr>
...
<td>
<input name="FirstName" type="text" />
</td>
</tr>
<tr>
...
<td>
<input name="LastName" type="text" />
</td>
</tr>
3.绑定一个类类型
[HttpPost]
public ActionResult Example2(Employee emp)
{
ViewBag.StatusMessage = "Employee data received successfully for ID " + emp.Id + "!";
return View();
}
类如下：
public class Employee
{
public string Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
4.绑定一个类的属性
[HttpPost]
public ActionResult Example3(Employee emp)
{
ViewBag.StatusMessage = "Employee data received successfully for ID " + emp.Id + "!";
return View();
}
类如下：
public class Employee
{
public string Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public Address HomeAddress { get; set; }
}
public class Address
{
public string Street { get; set; }
public string Country { get; set; }
public string PostalCode { get; set; }
}
页面内容：
<tr>
...
<td>
<input name="HomeAddress.Street" type="text" /></td>
</tr>
...
<td>
<input name="HomeAddress.Country" type="text" /></td>
</tr>
...
<td>
<input name="HomeAddress.PostalCode" type="text" /></td>
</tr>
5.绑定简单类型的集合
[HttpPost]
public ActionResult Example4(IList<string> id, IList<string> name)
{
ViewBag.StatusMessage = "Employee data received successfully for " + id.Count + " records!";
return View();
}
页面内容：
...
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input name="id" type="text" size="" /></td>
<td>
<input name="name" type="text" />
</td>
</tr>
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input name="id" type="text" size="" />
</td>
<td>
<input name="name" type="text" />
</td>
</tr>
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input name="id" type="text" />
</td>
<td>
<input name="name" type="text" />
</td>
</tr>
...
6.绑定一个类的集合
[HttpPost]
public ActionResult Example5(IList<Employee> employees)
{
ViewBag.StatusMessage = "Employee data received successfully for " + employees.Count + " records!";
return View();
}
页面内容：
...
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input name="[0].id" type="text" size="" />
</td>
<td>
<input name="[0].FirstName" type="text" />
</td>
<td>
<input name="[0].LastName" type="text" />
</td>
</tr>
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input name="[1].id" type="text" size="" />
</td>
<td>
<input name="[1].FirstName" type="text" />
</td>
<td>
<input name="[1].LastName" type="text" />
</td>
</tr> ...
注意索引是从0开始，中间不间断
如果，遇到有动态的Add和Delete功能，则索引不好去设置，可以使用下面的方法：
添加一个隐藏控件，控件名称后缀为.Index
Controller不变，页面内容更改为：
...
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input type="hidden" name="employees.Index" value="" />
<input name="employees[100].id" type="text" size="" />
</td>
<td>
<input name="employees[100].FirstName" type="text" />
</td>
<td>
<input name="employees[100].LastName" type="text" />
</td>
</tr>
<tr>
<td align="right" nowrap="nowrap" width="15%">
<input type="hidden" name="employees.Index" value="ccc" />
<input name="employees[ccc].id" type="text" size="" />
</td>
<td>
<input name="employees[ccc].FirstName" type="text" />
</td>
<td>
<input name="employees[ccc].LastName" type="text" />
</td>
</tr>
...
7.可自定义模型
[HttpPost]
public ActionResult Example6([ModelBinder(typeof(EmployeeBinder1))]Employee employee)
{
ViewBag.StatusMessage = "Employee data received successfully for " + employee.Id + "!";
return View();
}
绑定方法：
public class EmployeeBinder1:IModelBinder
{
public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
Employee emp = new Employee();
emp.Id = "E" + controllerContext.HttpContext.Request.Form["Id"];
emp.FirstName = controllerContext.HttpContext.Request.Form["FirstName"];
emp.LastName = controllerContext.HttpContext.Request.Form["LastName"];
emp.BirthDate = new DateTime(int.Parse(controllerContext.HttpContext.Request.Form["year"]),
int.Parse(controllerContext.HttpContext.Request.Form["month"]),
int.Parse(controllerContext.HttpContext.Request.Form["day"]));
return emp;
}
}