File Path/size in C#

Question

How to get the File Directory of a file (C:\myfolder\subfoler\mydoc.pdf). I also want to add the size of the subfolders, and finally the main folder size. This is for a .NET CLR that I need to integrate with SQL Server 2005 for a SSRS report.

Answer 1

You can use GetDirectoryName, to get only the directory path of the file:

using System.IO;
string directoryName = Path.GetDirectoryName(@"C:\myfolder\subfolder\mydoc.pdf");
// directoryName now contains "C:\myfolder\subfolder"

For calculating the directory and subdirectory size, you can do something like this:

public static long DirSize(DirectoryInfo d) 
{    
    long Size = 0;    
    // Add file sizes.
    FileInfo[] fis = d.GetFiles();
    foreach (FileInfo fi in fis) 
    {      
        Size += fi.Length;    
    }
    // Add subdirectory sizes.
    DirectoryInfo[] dis = d.GetDirectories();
    foreach (DirectoryInfo di in dis) 
    {
        Size += DirSize(di);   
    }
    return(Size);  
}