May 2008
Beginner
550 pages
13h 22m
English
Content preview from Beginning C# 3.0
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13.1. Directories
Anytime I want to explore a new area in C#, the first thing I do is find out which namespaces are involved with that area. Since we're going to discuss file input and output (I/O), I simply typed in using System. at the top of the program and started looking for namespaces that may apply. Sure enough, up popped System.IO. Just highlight IO and press the F1 key and you'll get information about the IO namespace. All kinds of interesting things come up, but let's concentrate first on those classes that deal with directory and drive information.
13.1.1. The DriveInfo Class
Just as Ed McMahon used to say on the Johnny Carson show, "Everything you could ever possibly want to know . . . " about a disk drive is in the DriveInfo class. A few of the more useful methods and properties are presented in Table 13-1.
| Method or Property | Description |
|---|---|
| GetDrives() | Returns an array with all of the logical drives of the computer |
| AvailableFreeSpace | Gives the amount of free disk space (in bytes) on a drive |
| DriveFormat | Returns the format for the drive (such as NTFS or FAT32) |
| DriveType | Returns the type of drive (such as fixed, removable, RAM, etc.) |
| Name | Gives the name of the drive |
| TotalFreeSpace | Gives the amount of unused space on the drive |
| TotalSize | Gives the capacity of the drive |
If you look in the IO namespace, you will also discover that there are classes named Directory and DirectoryInfo. These two classes present related, albeit different, information.
13.1.2. Directory ...
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