[RESOLVED] C# XML Troubles - Need Examples

Basically, I want my program to check if an XML file exists. If it doesn't, I want my program to create it, otherwise, I want my program to load it.

Also, I have a form with info, every time I click submit, I want to add that info to an existing or new database.

I am having a very difficult time finding examples of this, even though I imagine it to be quite a common task. Anyone have any resources on this?

Edit: I did start using XmlTextWriter, but then I was told it shouldn't be used for updating, even though it has been by far the easiest method I've used to add info to an XML database.

Edit 2: This solved my problem http://www.devx.com/tips/Tip/21168 .