How to save to XML using dataset

Using xml: How to save to XML using dataset on newest questions tagged xml – Stack Overflow

I am using a sql database to save the data of a simple note taking application, using dataset and gui is binded with database. Simple work.
Using SQL is useless here, I want to save the data to a simple XML file instead of SQL using the same dataset.

I am using Visual Studio 2010 and programming in C# .Net 4.0

source: http://stackoverflow.com/questions/3955707/how-to-save-to-xml-using-dataset
Using xml: using-xml