读取XML文件并将值写入TextBoxes和C＃ [英] Reading an XML File And Writing Values to TextBoxes and Such C#

问题描述

我已经把它的大部分都放下了，事实上我可以一次性读取每个值。



问题，是XML文件是怎样的是设置（我无法更改，因为这是它的应用程序如何使用它）





FE

 <   ServerSettings  >  
 <   property     name   =  ServerPort     value   =  25000  /  >  
 <   property     name   =  ServerIsPublic    value   =   true  /  >  
 <   property    名称  =  ServerName    value   = 我的游戏主持人  /  >  
 <   property    名称  =  ServerPassword < span class =code-attribute>   value   =   /  >  
 <   property     name   =  ServerMaxPlayerCount    value   =  4  /  >  
 <   / ServerSettings  >  

还有更多的值，但这只是一个例子。我需要让我的应用程序将值写入文本框。





这是我的代码，可能会使用一些改进。谢谢！

 使用（XmlReader prereader = XmlReader.Create（ presetlocation）） //  在使用OpenFileDialog //  $ b $选择xml预设文件后声明此变量b {
  while （prereader.Read（））
 {
  if （prereader.IsStartElement（））
 {
  switch （prereader.Name）
 {
  case    ServerSettings：
 断裂; 
  case    property ：
  string  attribute = prereader [  name ]; 
  string  attribute2 = prereader [  value ]; 
  if （属性！=  null ）
 {
  //  这是将数据写入txt以测试读数。它得出了奇怪的结果//  
 
 FileStream fs1 =  new  FileStream（   D：\\TEST.txt，FileMode.OpenOrCreate，FileAccess.Write）; 
 StreamWriter writer =  new  StreamWriter（fs1）; 
 writer.Write（attribute +   + attribute2）; 
 writer.Close（）; 
} 
  break ; 
} 
} 
} 
} 

解决方案

请参阅我的简短概述.NET FCL提供的XML解析方法：

1. 使用 System.Xml.XmlDocument 类。它实现了DOM接口;如果文档的大小不是太大，这种方式是最简单和最好的。
   参见 http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx [ ^ ]。
2. 使用类 System.Xml.XmlTextReader ;这是最快的阅读方式，特别是你需要跳过一些数据。
   参见 http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx [ ^ ]。
3. 使用类 System.Xml.Linq.XDocument ;这是类似于 XmlDocument 的最合适的方式，支持LINQ to XML Programming。
   参见 http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx [ ^ ]，http://msdn.microsoft.com/en-us/library/bb387063.aspx [ ^ ]。

-SA

我解决了这个问题。我不是只搜索不等于null的所有属性，而是只搜索某些文本。



而不是

  if （属性！=  null ）

现在是

  if （attribute ==   ServerPort）

对不起这个愚蠢的问题：）

I've gotten most of it down, in the fact that I can read EVERY value, all at once.

The problem, is how the XML file is setup (which I can not change, as that is how the application it is for uses it)


F.E.

<ServerSettings>
  <property name="ServerPort" value="25000"/>
  <property name="ServerIsPublic" value="true"/>
  <property name="ServerName" value="My Game Host"/>
  <property name="ServerPassword" value=""/>
  <property name="ServerMaxPlayerCount" value="4"/>
</ServerSettings>  

There are more values and such, but this is just an example. I need to get my application to write the values to textboxes.


Here is my code, which could probably use some improvements. Thank you!

using (XmlReader prereader = XmlReader.Create(presetlocation)) // This variable is declared after selecting the xml preset file with OpenFileDialog // 
{
    while (prereader.Read())
    {
        if (prereader.IsStartElement())
        {
	    switch (prereader.Name)
            {
	      case "ServerSettings":
		break;
              case "property":
		string attribute = prereader["name"];
		string attribute2 = prereader["value"];
		if (attribute != null)
		{
		// This was writing the data to a txt to test the reading. It came up with strange results //
			    				
		    FileStream fs1 = new FileStream("D:\\TEST.txt", FileMode.OpenOrCreate, FileAccess.Write);
		    StreamWriter writer = new StreamWriter(fs1);
		    writer.Write(attribute + " " + attribute2);
		    writer.Close();
		}
		break;
	    }
	}
    }
}

解决方案

Please see my short overview of the approaches to XML parsing offered by .NET FCL:

1. Use System.Xml.XmlDocument class. It implements DOM interface; this way is the easiest and good enough if the size if the document is not too big.
   See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^].
2. Use the class System.Xml.XmlTextReader; this is the fastest way of reading, especially is you need to skip some data.
   See http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx[^].
3. Use the class System.Xml.Linq.XDocument; this is the most adequate way similar to that of XmlDocument, supporting LINQ to XML Programming.
   See http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx[^], http://msdn.microsoft.com/en-us/library/bb387063.aspx[^].

—SA

I fixed the problem. Instead of just searching for ALL properties that don't equal null, I made it so it only searches for certain text.

Instead of

if (attribute != null)

It is now

if (attribute == "ServerPort")

Sorry for the stupid question :)

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