Create XML file using LINQ

public void AddProductCategory(string filePath, string productCategory)
{
XDocument oXDoc;
try
{
if (File.Exists(filePath))
{
oXDoc = XDocument.Load(filePath);
oXDoc.Element("DataContent").Add(
new XElement("Data",
new XElement("ID", Guid.NewGuid().ToString()),
new XElement("CategoryName", productCategory)
));
oXDoc.Save(filePath);
}
else
{
XElement oXElmnt = new XElement("DataContent",
new XElement("Data",
new XElement("ID", Guid.NewGuid().ToString()),
new XElement("CategoryName", productCategory)
));
oXElmnt.Save(filePath);
}
}
catch (Exception ex) { }
}