Write XML document to file - All Nodes are displayed in a single line

Hi,

I am working on a .NET 4.0 windows application. I use the following code to save the XML document to a file.

The XML file is saved and I am able to open the XML file. But when I open the file, the all nodes are shown in a single line.

//form surdoc XML document object and save it using XML writer.

 XmlWriterSettings wSet = new XmlWriterSettings();
            //wSet.NewLineChars = "\r\n";
            wSet.NewLineChars = Environment.NewLine;
            wSet.Encoding = Encoding.UTF8;
            wSet.OmitXmlDeclaration = true;
            wSet.NewLineHandling = NewLineHandling.Replace;           
           
            XmlWriter tw = XmlWriter.Create(writepath, wSet);
            surdoc.Save(tw);
            tw.Flush();

I want to write the output like this in the file.

<Node1>
   <ChildN1>test1</ChildN1>
 <ChildN2>test2</ChildN2>
</Node1>

But the Output in the file is like below. All nodes are in a single line.

<Node1><ChildN1>test1</ChildN1><ChildN2>test2</ChildN2></Node1>

How to write XMLdocument into a XML file so that when the file is opened
childnodes are displayed in the next line?

Thanks
Ashok