C# asp.net serialization xml-serialization

XmlSerializer 将数组属性 isFixedSize 设置为 true

发布于 2025-01-04 07:29:39 字数 1436 浏览 2 评论 0原文

我正在使用 XmlSerializer 将某些 XML 反序列化为对象。我遇到的问题是，一旦我成功反序列化，我的一个属性（数组）的属性 isFixedSize 设置为 true。

我需要在稍后阶段手动添加到该数组，但不能。

这是我的对象（为简洁起见，省略了其他属性）

namespace Omeda.Customer
{
    [Serializable()]
    [XmlRoot("Customer")]
    public class Customer : Error
    {
        [XmlArray("CustomerDemographics")]
        [XmlArrayItem("CustomerDemographic", typeof(CustomerDemographic))]
        public Omeda.Customer.CustomerDemographic[] CustomerDemographics { get; set; }
    }
}

这是我用来反序列化的方法（为简洁起见，再次省略了代码）

private T request_Get<T>(string url) where T : new()
{
    object returnObject = new T();

    try
    {
        var request = WebRequest.Create(url);
        request.Method = "GET";
        request.ContentType = "text/xml";
        request.Headers.Add("x-omeda-appid", this.API_KEY);
        request.Timeout = 50000;

        using (var response = request.GetResponse())
        {
            using (var responseStream = response.GetResponseStream())
            {
                XmlSerializer serializer = new XmlSerializer(typeof(T));
                returnObject = (T)serializer.Deserialize(responseStream);
            }
        }
    }
    catch (WebException ex)
    {
        ...
    }

    return (T)returnObject;
}

返回此对象后，customer.CustomerDemographics.IsFixedSize 返回 true。

任何关于如何解决这个问题以及为什么会发生这种情况的帮助都会很棒。

原文

I'm using an XmlSerializer to deserialize some XML into an object. The problem i'm having is once i've deserialized successfully, one of my properties which is an array has the property isFixedSize set to true.

I need to add to this array manually at a later stage, but can't.

Here's my object (other properties omitted for brevity)

namespace Omeda.Customer
{
    [Serializable()]
    [XmlRoot("Customer")]
    public class Customer : Error
    {
        [XmlArray("CustomerDemographics")]
        [XmlArrayItem("CustomerDemographic", typeof(CustomerDemographic))]
        public Omeda.Customer.CustomerDemographic[] CustomerDemographics { get; set; }
    }
}

And here's the method I'm using to deserialize (again, code ommitted for brevity)

private T request_Get<T>(string url) where T : new()
{
    object returnObject = new T();

    try
    {
        var request = WebRequest.Create(url);
        request.Method = "GET";
        request.ContentType = "text/xml";
        request.Headers.Add("x-omeda-appid", this.API_KEY);
        request.Timeout = 50000;

        using (var response = request.GetResponse())
        {
            using (var responseStream = response.GetResponseStream())
            {
                XmlSerializer serializer = new XmlSerializer(typeof(T));
                returnObject = (T)serializer.Deserialize(responseStream);
            }
        }
    }
    catch (WebException ex)
    {
        ...
    }

    return (T)returnObject;
}

Once this object is returned, customer.CustomerDemographics.IsFixedSize returns true.

Any help on how to get round this, and why this is happening would be great.

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最后的乘客 2025-01-11 07:29:39

IsFixedSize 对于数组始终为 true。如果您“需要在稍后阶段手动添加到此数组”，则不应使用数组；您可能应该使用 List 或其他可以增长的集合类型。

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慈悲佛祖 2025-01-11 07:29:39

您是否尝试将这些 CustomerDemographic 节点序列化为集合？

为此，请将 typeof(CustomerDemographic) 更改为 typeof(List)。
然后您就可以更改该集合中的项目。或者：

var customer = ... //Customer instance
var list = new List<CustomerDemographic>(custeomr.CustomerDemographics);

// change list here: add, remove, replace

customer.CustomerDemographics = list.ToArray();

// continue using customer instance

Did you try serializing those CustomerDemographic nodes to a collection instead?

To do that, change typeof(CustomerDemographic) to typeof(List<CustomerDemographic>).
then you'll be able to change items in that collection. Alternatively:

var customer = ... //Customer instance
var list = new List<CustomerDemographic>(custeomr.CustomerDemographics);

// change list here: add, remove, replace

customer.CustomerDemographics = list.ToArray();

// continue using customer instance

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