Understanding Permissions
The .NET Framework provides a high-level security mechanism over system resources, so it can happen that you attempt to access, in both reading or writing, directories or files but you do not have the required rights. To prevent your code from failing at runtime, you can check if you have permissions. When working with files and directories, you need to check the availability of the System.Security.FileIOPermission object. For example, the following code asks the system (Demand method) if it has permissions to read local files:
If your code has no sufficient permissions, a SecurityException is thrown. Checking for permission ...
Get Visual Basic® 2010 Unleashed now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
