针对C#中引用的XSD验证XML
我有一个具有指定架构位置的XML文件,例如:
xsi:schemaLocation="someurl ..\localSchemaPath.xsd"
我想在C#中验证。当我打开文件时,Visual
Studio会根据架构对其进行验证并完美列出错误。但是,以某种方式,如果没有指定要验证的架构,我似乎无法在C#中自动验证它,如下所示:
XmlDocument asset = new XmlDocument();XmlTextReader schemaReader = new XmlTextReader("relativeSchemaPath");
XmlSchema schema = XmlSchema.Read(schemaReader, SchemaValidationHandler);
asset.Schemas.Add(schema);
asset.Load(filename);
asset.Validate(DocumentValidationHandler);
我是否应该能够自动使用XML文件中指定的模式进行验证?我想念什么?
回答:
您需要创建一个XmlReaderSettings实例,并在创建它时将其传递给XmlReader。然后,您可以订阅ValidationEventHandler
设置中的以接收验证错误。您的代码最终将如下所示:
using System.Xml;using System.Xml.Schema;
using System.IO;
public class ValidXSD
{
public static void Main()
{
// Set the validation settings.
XmlReaderSettings settings = new XmlReaderSettings();
settings.ValidationType = ValidationType.Schema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
// Create the XmlReader object.
XmlReader reader = XmlReader.Create("inlineSchema.xml", settings);
// Parse the file.
while (reader.Read()) ;
}
// Display any warnings or errors.
private static void ValidationCallBack(object sender, ValidationEventArgs args)
{
if (args.Severity == XmlSeverityType.Warning)
Console.WriteLine("\tWarning: Matching schema not found. No validation occurred." + args.Message);
else
Console.WriteLine("\tValidation error: " + args.Message);
}
}
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