// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002070/string-toxmldocument

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.IO;

​

public class Program

{

    public static string FileName = "test.xml";

​

    public static void Main()

    {

        var xml =

    @"

<testcase>

    <date>4/12/13</date>

    <name>Mrinal</name>

    <subject>xmlTest</subject>

</testcase>";

​

        //C# Extension Method: String - ToXmlDocument

        var xmlDocument = xml.ToXmlDocument();

​

        xmlDocument.Save(FileName);

​

        //C# Extension Method: String - ToFileInfo

        var file = FileName.ToFileInfo();

​

        Console.WriteLine(file.ReadAllText());

    }

}