C#XML Reader简化版有帮助吗? [英] C# XML Reader simplified version help?

问题描述

我是CS的新学生.现在是夏天，我正在尝试自学，以便提高我的编程技能！

我想了解更多有关XML读取器和写入器的信息.有很多网站，但我不确定该遵循哪个网站.我创建了以下方法，是否为了简化可读性而对其进行了简化?看起来很丑

Hi I am a new CS student. Right now it is summer and I am trying to self-learn so I can keep my programming skills up!

I want to know a little more about the XML reader and writer. There are many websites but I am not sure which to follow. I have created the following methods, is there a simplified version of it for readability? It kind of looks ugly

public void AddArchiveInfo(XmlTextReader reader)
        {
            XmlNodeType type;
            while (reader.Read())
            {
                type = reader.NodeType;
                if (type == XmlNodeType.Element)
                {
                    if (reader.Name == "ArchiveItem")
                    {
                        ifArchiveItem(reader);
                    }
                    if (reader.Name == "fileExtensions")
                    {
                        ifFileExtension(reader);
                    }
                }
            }
        }

public void ifArchiveItem(XmlTextReader reader)
        {
            reader.Read();
            ArchiveItem item = new ArchiveItem();
            if (reader.Name == "PcName")
            {
                reader.Read();
                item.pcName = reader.Value;
                reader.Read();
                reader.Read();
            }
            if (reader.Name == "ArchivePrefix")
            {
                reader.Read();
                item.archivePrefix = reader.Value;
                reader.Read();
                reader.Read();
            }
            if (reader.Name == "FilePath")
            {
                reader.Read();
                item.filePath = reader.Value;
                reader.Read();
                reader.Read();
            }
            if (reader.Name == "ArchivePath")
            {
                reader.Read();
                item.archivePath = reader.Value;
                reader.Read();
                reader.Read();
            }
            if (reader.Name == "RetentionDays")
            {
                reader.Read();
                item.retentionDays = Convert.ToInt32(reader.Value);
            }
            this.archiveList.Add(item);
        }

推荐答案

一种非常好的处理XML的方法是LINQ to XML

A very nice way to process XML is LINQ to XML

此代码不好(很好，是不可接受的)，因为您使用立即字符串常量对元数据进行了硬编码.这是不支持的.如果您使用数据协定，则不必手动使用XML，因为它不包含硬编码，并且是最不介入的.您只需根据合同持久化数据对象的任何对象图即可.

参见:
http://msdn.microsoft.com/en-us/library/ms733127.aspx [ ^ ].

另请参阅我过去的答案，其中我主张采用这种可靠的方法:
如何在我的表单应用程序? [ ^ ]，
创建属性文件... [ http://msdn.microsoft. com/en-us/library/system.xml.xmlreader.aspx [ ^ ].我不需要所有那些许多网站".在浪费时间之前，尝试从MSDN开始.

—SA

This code is bad (well, unacceptable) because you hard-code meta-data using immediate string constants. This is unsupportable. You don''t have to work with XML manually if you use Data Contract, which excluded hard-coding and is the most non-intrusive. You just persist any object graph of data objects according to the contract.

See:
http://msdn.microsoft.com/en-us/library/ms733127.aspx[^].

See also my past answers where I advocate this robust approach:
How can I utilize XML File streamwriter and reader in my form application?[^],
Creating a property files...[^].

As to XmlReader, the best reading is this: http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx[^]. I would not need all those "many Web sites". Try to start with MSDN before you waste time on them.

—SA

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