ASP。NET Web应用程序找不到我的XML文件，说它不在IIS Express文件夹中

I have in my another project a class which loads XML.xml file for XmlTextReader object. Then my another project(website) uses this project for loading xml file. So when I run this website it sayis it cant find XML.xml file inside C:\Program Files(x86)\IIS Express\XML.xml . I cant create a new file there and I have no absolutely idea how to config this website to find my XML file from another directory. I tried to google a lot but couldnt find any good answers. Any fast fixes or something. Heres the code in asp.netI have in my another project a class which load