Validate xml with xsd in C# and replace invalid data with null value

Question

如何使用C＃使用.xsd文件验证.xml文件中的数据并将无效数据替换为空值？

Answer 1

Look at the XmlSchemaValidator class . While it's not easy to use, it is very powerful.

It works via a "push" model. The API informs you what kind of XML would be valid at the current point in the validation. You then supply a valid piece of XML (element, attribute, etc), and ask again, what would be valid now . I have used this to create sample XML that conforms to a set of schemas.

Although I haven't tried it, I suppose you could feed your input XML to the validator, then pass some "empty" XML once you reach an invalid point in the parse.

Answer 2

In .NET 3.5 to validate just use the following code

    public bool Validate(XmlReader xmlInput, XmlReader schemaDocument)
    {
        var xmlSchemaSet = new XmlSchemaSet();
        xmlSchemaSet.Add("", schemaDocument);
        try
        {
            var doc = XDocument.Load(xmlInput);
            bool valid = true;
            doc.Validate(xmlSchemaSet, (o, e) =>
            {
                valid = false;
            });
            return valid;
        }
        catch (Exception e)
        {
            return false;
        }
    }

but to correct your document, you should use XmlReader's methods and custom verification, I consider.