How to write data to a file in ASP.NET and in C#?

How to write data to a file in ASP.NET and in C#?

There are many ways to write the data to a file. The following example shows reading the data from xml file and writing to a file. Here the file could be any type, like “.txt” or “.sql” etc.

Input XML is:

<subjects>

  <subject id="100">

    <name>ASP.NET</name>

  </subject>

  <subject id="200">

    <name>C#</name>

  </subject>

</subjects>

Sample Code:

XmlDocument xmldoc = new XmlDocument();

            xmldoc.Load("input.xml");

            XmlNodeList xmlnode = xmldoc.GetElementsByTagName("subject");

            StringBuilder text = new StringBuilder();

            string strName = string.Empty;

            foreach (XmlNode node in xmlnode)

            {

               

                text.AppendLine("Subject Id: " + node.Attributes["id"].Value);

                text.AppendLine("Subject Name: " + node["name"].InnerText);

            }

            using (StreamWriter file =

            new StreamWriter(@"output.txt"))

            {

                file.Write(text.ToString());

            }