Hello. I need to find the available space for a given path (could be a network path) with a quota applied, but when I use the following code, it gives me the available space on the entire drive. For instance, I have a drive E: that has 500 GB of available space. But I have user folders on this drive and each user has a 2 GB quota. For instance, when I use this function giving the path "E:\Users\Greg" , it should return that 2 GB is free, but instead it returns 500 GB. I have verified that the quota is working in that it does not allow me to create more than 2 GB of files in that directory. Does anyone have a solution to this problem? Any help is greatly appreciated. Using C#.
Code:
using System;
using System.IO;
using System.Reflection;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
public class MainClass
{
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
public static long getFreeSpace(string path)
{
ulong freeBytesAvail;
ulong totalNumOfBytes;
ulong totalNumOfFreeBytes;
if (!GetDiskFreeSpaceEx(path, out freeBytesAvail, out totalNumOfBytes, out totalNumOfFreeBytes))
{
Console.Error.WriteLine("Error occurred: {0}",
Marshal.GetExceptionForHR(Marshal.GetLastWin32Error()).Message);
return 0;
}
else
{
return Convert.toInt64(freeBytesAvail / (1024 * 1024));
}
}
}
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