坚持绑定到XML模型类 [英] stuck binding xml to Model Class

问题描述

我使用XML作为小型CMS数据库，如画廊或工作人员档案进行实验
等等

I am experimenting with using xml as a database for small CMS, like gallery or staff profiles etc

不过是所有亚音速志同道合我坚持我如何我的XML文档绑定到modelclass
这样我就可以使用这个类的强类型的意见：

however being all subsonic minded i am stuck on how i bind my xml document to a modelclass so that i can then use that class for strongly typed views:

这是我的模型类：

[XmlRoot("employee")]
public class EmployeesModel
{
    [Required]
    [DisplayName("Name: ")]
    [XmlElement("employeeName")]
    public string employeeName { get; set; }

    [Required]
    [DisplayName("Position: ")]
    [XmlElement("employeePosition")]
    public string employeePosition { get; set; }

    [Required]
    [DisplayName("Description")]
    [XmlElement("employeeDescription")]
    public string employeeDescription { get; set; }

    [Required]
    [DisplayName("Photo: ")]
    [XmlElement("employeePhoto")]
    public string employeePhoto { get; set; }

    [Required]
    [DisplayName("ID: ")]
    [XmlElement("employeeID")]
    public int employeeID { get; set; }
}

和这里是我的code：

and here is my code:

XDocument xmlDoc = XDocument.Load(Server.MapPath("~/App_Data/employees.xml"));

        var model = (from xml in xmlDoc.Descendants("employee")
                                             select xml) as IEnumerable<EmployeesModel>;

        return View(model);

在XML

<?xml version="1.0" encoding="utf-8" ?>
<employees>
<employee>
    <employeeName>David parker</employeeName>
     <employeePosition>Senior Web Developer</employeePosition>
     <employeeDescription>This is a test description<br>feele free to add something here.</employeeDescription>
     <employeePhoto>mypic.jpg</employeePhoto>
    <employeeID>1</employeeID></employee></employees>

在XML一边工作，但模式永远是空的，但是我试图绑定时拿不出误差修改运行时，我知道还有更多我应该做的，但在这里我需要一些帮助。

the xml side work but model is always empty, however i get no runtime erros when trying to bind, i know there is more i should do here but i need some help.

为了清楚起见，我使用asp.net MVC 2 RC 2

for clarity i am using asp.net mvc 2 rc 2

感谢

推荐答案

您需要的反序列化的XML转换的对象。你不能简单地施展XML作为对象。当你说为IEnumerable＆LT; EmployeesModel＆GT; ，你会得到一个空，因为类型不兼容。您code可能是这个样子：

You need to deserialize the XML into objects. You cannot simply cast XML as objects. When you say as IEnumerable<EmployeesModel>, you'll get a null since the types aren't compatible. Your code could look something like this:

var serializer = new XmlSerializer(typeof(EmployeesModel));
var model = 
    from xml in xmlDoc.Descendants("employee")
    select serializer.Deserialize(xml.CreateReader()) as EmployeesModel;

您可以考虑另一种选择是的项目的的的XElement s转换EmployeesModel对象，像这样的：

Another option you could consider is to project the XElements into EmployeesModel objects, like this:

var model =
    from xml in xmlDoc.Descendants("employee")
    select new EmployeesModel {
        employeeName = (string)xml.Element("employeeName"),
        employeePosition = (string)xml.Element("employeePosition"),
        employeeDescription = (string)xml.Element("employeeDescription"),
        employeePhoto = (string)xml.Element("employeePhoto"),
        employeeID = (int)xml.Element("employeeID"), };

正如你所看到的，这可能会很麻烦。但是，它可能是适当的。如果您的XML文件重新presents所有员工的数据，但你的观点仅显示数据或在不同的结构中的数据的一个子集，你可能不希望您的视图模型是你数据的内容直接复制商店。

As you can see, that can get tedious. However, it may be appropriate. If your XML file represents all employee data but your view shows only a subset of the data or the data in a different structure, you probably don't want your view model to be a direct copy of the contents of your data store.

这篇关于坚持绑定到XML模型类的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！