• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 329
  • Last Modified:

Difference betweem Find class and FindInfo class

I have a tutorial that used the FileInfo class to check if a file exists before creating a Streamwriter. Then, in the same course, it uses the simple file object to check if a file exists. I looked at both classes and they both seem to have the4 same methods and properties. So why or when would FileInfo be used instead of File?
0
BobHavertyComh
Asked:
BobHavertyComh
2 Solutions
 
jasonduanCommented:
When use File Class, you can call its static method Exists( ), in this case you don't have to create any object.
When use FileInfo Class, you have to create an FileInfo object, then check its property Exists
0
 
Paul JacksonCommented:
The File class has static methods so you don't need to create an instance of it to use the methods, whereas a FileInfo class you have to create an instance of the class to use its methods.

Generally if you are performing a single operation on a file use the File class, if you're performing multiple operations on a file the use the FileInfo class. This is because of the security checking that is done when accessing a file. If you use the File class the security check is done every time you call a method of the File class. If you use the FleInfo class the security check is only done when you create the instance of the FileInfo class and therefore using FileInfo is more efficient when performing multiple operations on a file.
0
 
BobHavertyComhAuthor Commented:
Both answers are correct, but Jack's answer was much more comprehensive and explained when one would use one of the other. Thanks guys.
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now