带有文本文件的实体框架（没有数据库！）

I'm used to Forms and DataSets but now I'm trying out WPF and the Entity Framework. My goal is to fill a DataGrid in WPF with the use of the Entity Framework. However, I do NOT have a database! I have simple text files with data that I have to parse to fill my Entities.I'm used to Forms and DataSets but now I'm tryi