XmlDocument 未执行验证？
我有这个函数用于根据外部模式文件验证 xml 消息：
private bool IsValidMessage(string message, XmlDocument xDoc)
{
this.valid = true;
byte[] bytes = Encoding.UTF8.GetBytes(message);
MemoryStream ms = new MemoryStream(bytes);
ms.Flush();
ms.Position = 0;
XmlReaderSettings xSettings = new XmlReaderSettings();
xSettings.ValidationType = ValidationType.Schema;
xSettings.Schemas = new System.Xml.Schema.XmlSchemaSet();
xSettings.Schemas.Add(null, "message.xsd");
xSettings.ValidationEventHandler += delegate(object sender, ValidationEventArgs e) {
this.valid = false;
ShowMessage("Wrong message format: " + message);
};
XmlReader xReader = XmlReader.Create(ms, xSettings);
xDoc.Load(xReader);
return valid;
}
当我调用 IsValidMesage("nothing", xDoc); 时它返回true，并且validationEventHandler委托中的代码永远不会执行...（加载抛出异常，但我认为应该在委托中处理它...）你知道为什么吗？
I have this function for validate xml messages against external schema file:
private bool IsValidMessage(string message, XmlDocument xDoc)
{
this.valid = true;
byte[] bytes = Encoding.UTF8.GetBytes(message);
MemoryStream ms = new MemoryStream(bytes);
ms.Flush();
ms.Position = 0;
XmlReaderSettings xSettings = new XmlReaderSettings();
xSettings.ValidationType = ValidationType.Schema;
xSettings.Schemas = new System.Xml.Schema.XmlSchemaSet();
xSettings.Schemas.Add(null, "message.xsd");
xSettings.ValidationEventHandler += delegate(object sender, ValidationEventArgs e) {
this.valid = false;
ShowMessage("Wrong message format: " + message);
};
XmlReader xReader = XmlReader.Create(ms, xSettings);
xDoc.Load(xReader);
return valid;
}
When I call IsValidMesage("nothing", xDoc); it returns true and code in validationEventHandler delegate never executes...(load throws exception but i think it should be taken care of in the delegate...) Do you have any idea why?
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我认为我找到了原因，但这只是我的猜测：
当在字符串中应该表示正确的 xml 文档只是一些字符串（例如示例中的“无”）时，验证不会发生，因为加载会抛出异常，这不是一个根本没有xml。
Think I found the reason, but this is only my guess:
When in string that should represent a proper xml document is just some string (like "nothing" in example) the validation would not happen becouse load throws exception that this isn't an xml at all.
http://msdn.microsoft.com/en-us/library/ms162371。 aspx
我认为你需要这样做：
http://msdn.microsoft.com/en-us/library/ms162371.aspx
I think you need to do: