I want to save an existing List<T> into an XML file in c#

[tadasip]

I had a place class define as follow:\[code\] public class place { public string placeID { get; set; } public string placeCatID { get; set; } public string placeName { get; set; } }\[/code\]And the data store in a list call placelist\[code\] List<place> placelist = new List<place>();\[/code\]Can guide me how to convert the placelist to a string or export it and save it into an XML file format as follow:\[code\] <place> <pID>0001</pID> <pCatID>C1</pID> <pName>Location 1</pName> </place> <place> <pID>0002</pID> <pCatID>C1</pID> <pName>Location 2</pName> </place>\[/code\]Language using is C#Thanks.