Convert list of strings to xml and convert the xml to list of string.

Question

Hi,

I have list of strings(file names) i want to convert to xml and saved to disk.

i want to read this xml from disk and convert to list of strings.

i want to delete this xml from disk.

Thanks in advance,

Answer 1

Hello,

I used a static class to implement the above three functions.

You can refer to the following key code and annotations.

// The xml file format written by this method is
// <? xml version = "1.0" encoding = "UTF-8"?>
// <site>
//      <name> test.txt </name>
//      <name> Filename.txt </name>
// </site>
// If you need to adjust the XML file format, you can refer to this method for modification.
public static class ListXMLHelper
{
    public static void WriteStringsToXML(string filename, List<string> strings)
    {
        StringBuilder myStringBuilder = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        myStringBuilder.AppendLine();
        myStringBuilder.AppendLine("<site>");
        foreach (string s in strings) {
            myStringBuilder.Append("    <name>");
            myStringBuilder.Append(s);
            myStringBuilder.Append("</name>");
            myStringBuilder.AppendLine();
        }
        myStringBuilder.AppendLine("</site>");
        using (StreamWriter outputFile = new StreamWriter(filename))
        {
            outputFile.Write(myStringBuilder.ToString());
        }
    }
    public static List<string> ReadStringsToXML(string filename) {
        List<string> strs = new List<string>();
        using (StreamReader inputFile = new StreamReader(filename))
        {
            while (!inputFile.EndOfStream) {
                var s = inputFile.ReadLine();
                // get value from <name></name>
                var value = GetContent(s, "name");
                if (value != null) { 
                    strs.Add(value);
                }
            }
        }
        return strs;
    }
   // Get the value in the XML label through a regular expression.
   public static string GetContent(string str, string title)
    {
        string tmpStr = string.Format("<{0}[^>]*?>(?<Text>[^<]*)</{1}>", title, title); //获取<title>之间内容

       Match TitleMatch = Regex.Match(str, tmpStr, RegexOptions.IgnoreCase);

       string result = TitleMatch.Groups["Text"].Value;
        if (result.Length > 0) {
            return result;
        }
        else
        {
            return null;
        }

       
    } 
   // delete the file
   public static void DeleteFile(string filename) {
        if (File.Exists(filename))
        {
            File.Delete(filename);
        }
    }
}

Please refer to the following documentations:

• File system helpers
• Using the StringBuilder Class in .NET
• .NET regular expressions

Best Regards,

Alec Liu.

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.