how to read a xml file and also how to store the read value in string variable in asp.net

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ASP.NET

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

Posted 10-Apr-12 15:36pm

santosh_k

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3 solutions

Solution 1

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:

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[^].
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[^].
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

Posted 10-Apr-12 16:49pm

Sergey Alexandrovich Kryukov

Comments

VJ Reddy 10-Apr-12 23:36pm

Good answer. +5

Sergey Alexandrovich Kryukov 11-Apr-12 10:42am

Thank you, VJ.
--SA

Solution 3

Also you may do the following :

C#

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();
        }

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".

Posted 10-Apr-12 18:50pm

the headless nick

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santosh_k · Accepted Answer · 2012-04-10T17:02:00

C#

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;
}