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This article mainly introduces "what are the parsing methods of C # XML". In the daily operation, I believe that many people have doubts about the parsing methods of C# XML. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "what are the parsing methods of C# XML?" Next, please follow the editor to study!

There are generally two models for accessing and manipulating XML files in a program: the flow model and the DOM (document object model). There are two variants of flow model-"push" model and "pull" model.

The "push" model of C # XML parsing method:

The "push" model, also known as SAX,SAX, is an event-driven model. Every time it finds a node, it uses the "push" model to raise an event, and we have to write a handler for these events, which is troublesome.

The "pull" model of C # XML parsing method:

Net uses an implementation scheme based on the "pull" model. When traversing the document, the "pull" model pulls the interested part of the document out of the reader without raising an event, allowing us to access the document programmatically, which greatly improves the flexibility, and the "pull" model can selectively deal with nodes. In. Net, the pull model is implemented through a XML reader (XMLTextReader class). This class provides the function of reading Xml files, which can verify whether the document is well-formed. If it is not a well-formed Xml document, it will throw a XmlException exception during the reading process. There is only the current node in memory at any time, but it is read-only, forward, and cannot perform backward navigation operations in the document.

Introduction to DOM of C # XML parsing method:

The advantage of DOM is that it allows editing and updating of XML documents, random access to data in documents, and the use of XPath queries. However, the disadvantage of DOM is that it needs to load the entire document into memory at once, which can cause resource problems for large documents. Use the XML DOM Analyzer (XMLDocument) to implement the DOM model in .NET.

Therefore,. NET Framework fully supports XML DOM mode, but it does not support SAX mode. The .NET Framework supports two different analysis modes: the XML DOM parser (XMLDocument class) and the XML reader (XMLTextReader class). It does not support the SAX parser, but that does not mean it does not provide the same functionality as the SAX parser. Through the XML reader, all the functions of SAX can be easily realized and used more effectively.

At this point, the study of "what are the parsing methods of C # XML" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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