Using XML files with C#

Since you are calling this method:

XmlNode Node = Xdoc.SelectSingleNode("PasswordSeries");

it is only returning one XmlNode(notice the SingleNode in the method name).  Using this method, it doesn't matter how many nodes you have since you are only looking at one of them.

Thanks for your valueable suggestion.

Actually i am working with XML files for the first time. So, i don't have much idea.

(Please don't mind one silly question:) Will the code work even if we have multiple nodes in the xml file.

FYI, the "ForEach" loop in your code is unnecessary.  there will ALWAYS only be one XMLNode in an XMLNode object.  So there is no need to loop through it.

Thanks all of you.

The problem is solved. It was my mistake. I am having another method to read the same file, in that method i forgot to close the file opened using XMLTextReader.

Now everything is working.

Thanks once again.

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My code is as given below:

Xdoc.Load(strFilePath);

XmlNode Node = Xdoc.SelectSingleNode("PasswordSeries");

foreach (XmlNode nd in Node)

{

      if (nd.Name == "PasswordGenerationDate")

      {

            XmlNode xNode = nd.Attributes.GetNamedItem("StartIndex");

            xNode.Value = val;

      }

}

Xdoc.Save(strFilePath);

      

Verify if you're using the file by another application
http://dotnetuniver.blogspot.com/

no, you should not need to close the file before saving.  do you have it open by another process?

my code works just fine:

               XmlDocument xdoc = new XmlDocument();
                xdoc.Load(m_settingsPath);

                XmlNode root = xdoc.DocumentElement;
                XmlNode xNode;

                xNode = root.SelectSingleNode("/configuration/Main.ConnectionString");
                xNode.InnerText = Crypto.Encrypt(m_connectionString.ConnectionString, Globals.CryptoOffset);

                xdoc.Save(m_settingsPath);