How can I get the list of logial drives (C#) on a system as well as their capacity and free space?
7 Answers
System.IO.DriveInfo.GetDrives()
foreach (var drive in DriveInfo.GetDrives())
{ double freeSpace = drive.TotalFreeSpace; double totalSpace = drive.TotalSize; double percentFree = (freeSpace / totalSpace) * 100; float num = (float)percentFree; Console.WriteLine("Drive:{0} With {1} % free", drive.Name, num); Console.WriteLine("Space Remaining:{0}", drive.AvailableFreeSpace); Console.WriteLine("Percent Free Space:{0}", percentFree); Console.WriteLine("Space used:{0}", drive.TotalSize); Console.WriteLine("Type: {0}", drive.DriveType);
}Their example has more robust, but here's the crux of it
string[] drives = System.IO.Directory.GetLogicalDrives();
foreach (string str in drives)
{ System.Console.WriteLine(str);
}You could also P/Invoke and call the win32 function (or use it if you're in unmanaged code).
That only gets a list of the drives however, for information about each one, you would want to use GetDrives as Chris Ballance demonstrates.
maybe this is what you want:
listBox1.Items.Clear();
foreach (DriveInfo f in DriveInfo.GetDrives()) listBox1.Items.Add(f);You can retrieve this information with Windows Management Instrumentation (WMI)
using System.Management; ManagementObjectSearcher mosDisks = new ManagementObjectSearcher("SELECT * FROM Win32_DiskDrive"); // Loop through each object (disk) retrieved by WMI foreach (ManagementObject moDisk in mosDisks.Get()) { // Add the HDD to the list (use the Model field as the item's caption) Console.WriteLine(moDisk["Model"].ToString()); }Theres more info here about the attribute you can poll
2This is a wonderful piece of code.
ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_LogicalDisk WHERE DriveType=3"); // Create query to select all the hdd's
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query); // run the query
ManagementObjectCollection queryCollection = searcher.Get(); // get the results
string sVolumeLabel = "";
string[,] saReturn = new string[queryCollection.Count, 7];
int i = 0; // counter for foreach
foreach (ManagementObject m in queryCollection)
{ if (string.IsNullOrEmpty(Convert.ToString(m["VolumeName"]))) { sVolumeLabel = "Local Disk"; } else { sVolumeLabel = Convert.ToString(m["VolumeName"]); } // Disk Label string sSystemName = Convert.ToString(m["SystemName"]); // Name of computer string sDriveLetter = Convert.ToString(m["Name"]); // Drive Letter decimal dSize = Math.Round((Convert.ToDecimal(m["Size"]) / 1073741824), 2); //HDD Size in Gb decimal dFree = Math.Round((Convert.ToDecimal(m["FreeSpace"]) / 1073741824), 2); // Free Space in Gb decimal dUsed = dSize - dFree; // Used HDD Space in Gb int iPercent = Convert.ToInt32((dFree / dSize) * 100); // Percentage of free space saReturn[i,0] = sSystemName; saReturn[i,1] = sDriveLetter; saReturn[i,2] = sVolumeLabel; saReturn[i,3] = Convert.ToString(dSize); saReturn[i,4] = Convert.ToString(dUsed); saReturn[i,5] = Convert.ToString(dFree); saReturn[i,6] = Convert.ToString(iPercent); i++; // increase counter. This will add the above details for the next drive.
}I deployed an SSIS package and was getting an error simply because on Ballance example we are reading the drives without waiting for them to be ready:
string EmailMessage = "";
foreach (var drive in System.IO.DriveInfo.GetDrives())
{ if (drive.IsReady == true) /*Make sure we can read*/ { double freeSpace = drive.TotalFreeSpace; double totalSpace = drive.TotalSize; double percentFree = (freeSpace / totalSpace) * 100; float num = (float)percentFree; //MessageBox.Show("Drive:" + drive.Name + " With " + num + "% free."); if (num < 5) { EmailMessage = "Drive:" + drive.Name + " With " + num + "% free."; } }
}
