Consider the situation where a user enters the following

Basically I want the user who is viewing the xmlApp.aspx to be able to load an xml file to the web form page. They are not allowed to have any access to the web form code and when they load the file into the form it will be validated by me using a predefined xsd.
Also I dont want them to paste the code into a text box, i want them to point to where their xml file is located and do it that way instead.
I'll continue researching it, but if anyone has any ideas it would be appreciated,
thanks in advance