如何在作为参数传递的XmlDocument上使用XmlReader [英] How do I use XmlReader on an XmlDocument passed as a parameter

问题描述

所有XmlReader示例都假定正在从

文件中读取XmlDocument。但是，我想将它与作为

方法参数传递的XmlDocument一起使用，但我不确定如何。


有什么建议吗？

All of the XmlReader examples assume that the XmlDocument is being read from
a file. However, I would like to use it with an XmlDocument passed as a
method parameter, but am not sure how.

Any suggestions?

推荐答案

Thirsty Traveler写道：

Thirsty Traveler wrote:

所有XmlReader示例假设正在从文件中读取XmlDocument。但是，我想将它与作为
方法参数传递的XmlDocument一起使用，但我不确定如何。

All of the XmlReader examples assume that the XmlDocument is being read from
a file. However, I would like to use it with an XmlDocument passed as a
method parameter, but am not sure how.

XmlReader只是一个快速，仅向前非缓存方式来解析XML。如果你有
有一个XmlDocument实例，那么XML已经被解析为一个

可导航树模型，你可以在其上进行DOM和XPath操作。所以我

一旦你有了一个

的XmlDocument，我不确定为什么你认为你需要一个XmlReader。如果您仍想使用XmlReader API，那么

就有XmlNodeReader，例如

XmlReader reader = new XmlNodeReader（xmlDocumentInstanceOrOtherXMLNode）;


-


Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

你究竟想做什么？阅读XmlDocument？如果你已经有了一个XmlDocument，那么XPath / XQuery（.SelectNodes（）,. SelectSingleNode（））和

对象模型（.GetAttribute（）等）这似乎是自然的选择 - 因为它已经太晚了，无法从XmlReader的效率中加强......再加上

更容易做对！除非您需要将相应的

xml-reader传递给另一种方法？


Marc

What exactly are you trying to do? Read the XmlDocument? If you already have
an XmlDocument, then XPath/XQuery (.SelectNodes(), .SelectSingleNode()) and
the object-model (.GetAttribute() etc) would seem the natural choice - as it
is already too late to beefit from the efficiencies of XmlReader... plus it
is a lot easier to get right! Unless you need to pass a corresponding
xml-reader to another method?

Marc

我有一个XML文档，它从一个Web服务传递，包含1到

许多交易请求到我们的大型机。我需要将此

XML文档中的值映射到大型机事务并调用它一次或多次

（XML文档中的每个事务一次）。我认为XmlReader

会更快达到这个目的。


" Marc Gravell" <毫安********** @ gmail.com>在消息中写道

新闻：呃************** @ TK2MSFTNGP02.phx.gbl ...

I have an XML document that is passed from a web service that contains 1 to
many transaction requests to our mainframe. I need to map the values in this
XML document to the mainframe transaction and call it one or more times
(once for each transaction in the XML document). I was thinking XmlReader
would be faster for this purpose.

"Marc Gravell" <ma**********@gmail.com> wrote in message
news:uh**************@TK2MSFTNGP02.phx.gbl...

你究竟在尝试什么？去做？阅读XmlDocument？如果你已经有了一个XmlDocument，那么XPath / XQuery（.SelectNodes（），
.SelectSingleNode（））和对象模型（.GetAttribute（）等）似乎是自然的选择 - 因为从XmlReader的效率来加强已经为时已晚......加上它变得更加容易！除非
你需要将相应的xml-reader传递给另一种方法？

Marc

What exactly are you trying to do? Read the XmlDocument? If you already
have an XmlDocument, then XPath/XQuery (.SelectNodes(),
.SelectSingleNode()) and the object-model (.GetAttribute() etc) would seem
the natural choice - as it is already too late to beefit from the
efficiencies of XmlReader... plus it is a lot easier to get right! Unless
you need to pass a corresponding xml-reader to another method?

Marc

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