如何读取xml文件以及如何将读取的值存储在asp.net中的字符串变量中 [英] how to read a xml file and also how to store the read value in string variable in asp.net

问题描述

嗨！我想读取xml文件，并将读取的值也存储在asp.net中的字符串变量中.

Hi!!i want to read a xml file and also store the read value in string variable in asp.net

推荐答案

让我从结尾开始:通过将值分配给变量来完成在字符串变量中存储值".如果您不理解它，我不确定谈论XML是否有意义. :-)

无论如何，至少有三种方法可以读取标准.NET库支持的XML.这是我对它们的简短评论:

Let me start with the end: "store… value in string variable" is something done by assigning a value to a variable. If you did not understand it, I am not sure if it make any sense to talk about XML or not. :-)

Anyway, there are at least three ways to read XML supported by standard .NET libraries. Here is my short review of them:

1. 使用System.Xml.XmlDocument类.它实现了DOM接口；如果文档太大，则这种方法最简单，也足够好.
   请参见
2. 使用类System.Xml.XmlTextReader; library/system.xml.xmldocument.aspx"target =" _ blank"title =" New Window> ^ ].
3. 使用类System.Xml.XmlTextReader;这是最快的读取方法，尤其是您需要跳过一些数据.
   请参见 http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx [ http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx [http://msdn.microsoft.com/en-us/library/bb387063.aspx [

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

—SA

string value1;
string value2;

protected void Page_Load(object sender, EventArgs e)
{
   Read_Xmlfile();
}

public void Read_Xmlfile()
{
   XmlTextReader reader = new XmlTextReader("D:\\WebSite2008\\WebSite3Tierdemo2\\file\\myxml.xml");
   while (reader.Read())
   {
      XmlNodeType nodeType = reader.NodeType;
      switch (nodeType)
      {
         case XmlNodeType.Element:
            if (reader.HasAttributes)
            {
               for (int i = 0; i < reader.AttributeCount; i++)
               {
                  reader.MoveToAttribute(i);
                  //value2=reader.Value;
                  //Response.Write("Attribute is {0} with Value {1}: ", reader.Name, reader.Value);
               }
            }
            break;
         
         case XmlNodeType.Text:
            //Response.Write(reader.Value);
            value1 = reader.Value;
            Response.Write(value1);
            break;
      }
   }
   //Label1.Text = value1;
   //Label2.Text = value2;
}

也可以执行以下操作:

Also you may do the following :

String path = Server.MapPath("~\\App_Data\\Ooohh.xml");
        if (File.Exists(path))
        {
            DataSet ds = new DataSet();
            ds.ReadXml(path);
            GridView1.DataSource = ds;
            GridView1.DataBind();
            ds.Dispose();
        }

在这种情况下，XML被读取为表格并显示在GridView1中.不确定将读取的值存储在字符串变量中"是什么意思.

In this case the XML is read as a table and shown in the GridView1. Not sure what you mean by "store the read value in string variable".

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