如何使 XmlSerialiser 不以开头？

发布于 2024-08-03 20:02:45 字数 154 浏览 9 评论 0原文

我正在使用的文件格式 (OFX) 是类似 XML 的，并且在类似 XML 的位开始之前包含一堆纯文本内容。但它不喜欢在纯文本和 XML 部分之间存在，所以我想知道是否有办法让 XmlSerialiser 忽略它。我知道我可以浏览该文件并删除该行，但一开始就不写它会更简单、更干净！有什么想法吗？

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明媚如初 2024-08-10 20:02:45

您必须操作在调用 序列化方法。其 Settings 属性具有 OmitXmlDeclaration 属性，您需要将其设置为 true。您还需要设置 ConformanceLevel 属性，否则 XmlWriter 将忽略 OmitXmlDeclaration 属性。

XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.ConformanceLevel = ConformanceLevel.Fragment;
XmlWriter writer = XmlWriter.Create(/*whatever stream you need*/,settings);
serializer.Serialize(writer,objectToSerialize);
writer.close();

You'll have to manipulate the XML writer object you use when calling the Serialize method. Its Settings property has a OmitXmlDeclaration property, which you'll want to set to true. You'll also need to set the ConformanceLevel property, otherwise the XmlWriter will ignore the OmitXmlDeclaration property.

XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
settings.ConformanceLevel = ConformanceLevel.Fragment;
XmlWriter writer = XmlWriter.Create(/*whatever stream you need*/,settings);
serializer.Serialize(writer,objectToSerialize);
writer.close();

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成熟稳重的好男人 2024-08-10 20:02:45

不太难，您只需序列化到显式声明的 XmlWriter 并在序列化之前设置该编写器的选项即可。

public static string SerializeExplicit(SomeObject obj)
{    
    XmlWriterSettings settings;
    settings = new XmlWriterSettings();
    settings.OmitXmlDeclaration = true;

    XmlSerializerNamespaces ns;
    ns = new XmlSerializerNamespaces();
    ns.Add("", "");


    XmlSerializer serializer;
    serializer = new XmlSerializer(typeof(SomeObject));

    //Or, you can pass a stream in to this function and serialize to it.
    // or a file, or whatever - this just returns the string for demo purposes.
    StringBuilder sb = new StringBuilder();
    using(var xwriter = XmlWriter.Create(sb, settings))
    {

        serializer.Serialize(xwriter, obj, ns);
        return sb.ToString();
    }
}

Not too tough, you just have to serialize to an explicitly declared XmlWriter and set the options on that writer before you serialize.

public static string SerializeExplicit(SomeObject obj)
{    
    XmlWriterSettings settings;
    settings = new XmlWriterSettings();
    settings.OmitXmlDeclaration = true;

    XmlSerializerNamespaces ns;
    ns = new XmlSerializerNamespaces();
    ns.Add("", "");


    XmlSerializer serializer;
    serializer = new XmlSerializer(typeof(SomeObject));

    //Or, you can pass a stream in to this function and serialize to it.
    // or a file, or whatever - this just returns the string for demo purposes.
    StringBuilder sb = new StringBuilder();
    using(var xwriter = XmlWriter.Create(sb, settings))
    {

        serializer.Serialize(xwriter, obj, ns);
        return sb.ToString();
    }
}

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