XmlReader 总是根据另一个 Xsd 文件验证一个 Xsd 文件是否有效 [英] XmlReader always validates a Xsd file against another Xsd file as valid

问题描述

我有 XmlReader 的奇怪行为.当使用它针对 Xsd 验证 Xml 时，everythink 工作正常，我期望.但是当我尝试针对另一个 Xsd 验证一个 Xsd 文件时，它不会引发验证异常.

I've got strange behaviour of the XmlReader. When using it for validation Xml against Xsd everythink works fine and how I expect. But when I try validate a Xsd file against another Xsd, it throws no validation exception.

为了更好地说明我的用例:我有一个应用程序，用户可以在其中上传一个 Xml 文件，如数据输入.用户必须为已上传的 xml 文件上传 xsd 文件，然后根据已上传的 Xsd 文件验证 Xml 文件.但是在用户上传新的 Xsd 文件作为 Xml 文件(Xsd 是有效的 Xml)然后上传另一个 Xsd 文件用于验证第一个 Xsd 文件的情况下，我需要通知验证消息，该 Xml 文件(在这种情况下第一个 Xms 文件)对上传的 Xsd 文件(第二个 Xsd 文件)无效.

For better explenation of my use case: I have an application where an user can upload a Xml file like data input. The user must upload a xsd file for already uploaded xml file and after that, the Xml file is validated against the Xsd file already uploaded. But in the case when the user upload new Xsd file as Xml file (Xsd is valid Xml) and then uploads another Xsd file for validation first Xsd file, I neeed to notify validation message, that Xml file (in this case first Xms file) is not valid against uploaded Xsd file (second Xsd file).

这是我自己的 XmlReader 的包装器"实现:

Here is my own "wraper" implelementation of XmlReader:

public static class XmlReader
{
    public static XmlDocument GetSchemaDocument(Stream stream)
    {
        var schemaDocument = new XmlDocument();
        var schemaDocumentReader = new XmlTextReader(stream);
        schemaDocument.Load(schemaDocumentReader);

        return schemaDocument;
    }

    public static XmlReaderSettings GetXmlReaderSettings(Stream stream)
    {
        var schemaSet = new XmlSchemaSet();
        var schemaSetReader = new XmlTextReader(stream);
        schemaSet.Add("", schemaSetReader);

        var settings = new XmlReaderSettings
        {
            ValidationType = ValidationType.Schema,
            Schemas = schemaSet,

        };
        settings.ValidationEventHandler += ValidationEventHandler;

        return settings;
    }

    public static XmlDocument GetXmlDocument(Stream stream, XmlReaderSettings settings)
    {
        var reader = System.Xml.XmlReader.Create(stream, settings);
        var document = new XmlDocument();
        document.Load(reader);

        return document;
    }

    static void ValidationEventHandler(object sender, ValidationEventArgs e)
    {
        if(e.Severity == XmlSeverityType.Error)
            throw new ValidationException("Xml does not valid with Xsd.");
    }
}

我的问题是为什么 XmlReader 将任何 Xsd 文件验证为另一个 Xsd 文件是否有效?

My question is why does XmlReader validate any Xsd file to another Xsd file as valid?

推荐答案

如 Pawel 所写.

As Pawel wrote.

解决方案是使用 XmlSchemaValidationFlags.ReportValidationWarnings.

Solution is to use XmlSchemaValidationFlags.ReportValidationWarnings.

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