Management Object vrs Scripting

[andrewcw]

I have used System.Management in the past to extract and
walk thru drives & check their type. I can also do it
with COM's FileSystemObject. Here I am trying to just use
the Management Object after using the Directory class...

There seems to be a way to load the System Management
Object with string path ( 8 overloads ), but every time I
try a variation it crashes. Any ideas ? Thanks

Scripting.FileSystemObject FSO = new
Scripting.FileSystemObjectClass();
string [] logDrives=Directory.GetLogicalDrives();
for ( int i =0;i< logDrives.GetUpperBound(0)+1;i++)
{
System.Management.ManagementObject moDrive = new
System.Management.ManagementObject(logDrives); // crash
moDrive.Properties["DriveType"].Value.ToString();
Scripting.Drive thisdrive=FSO.GetDrive(logDrives);
if (thisdrive.DriveType==Scripting.DriveTypeConst.CDRom)

 

[Jeffrey Tan[MSFT]]

Hi Andrew,

You should pass the WMI path to the ManagementObject's constructor.
To get the disk information by ManagementObject, you should use parameter:
"Win32_LogicalDisk='[diskletter]:'"

So you can do something like this:

Scripting.FileSystemObject FSO = new Scripting.FileSystemObjectClass();
string [] logDrives=System.IO.Directory.GetLogicalDrives();
for ( int i =0;i< logDrives.GetUpperBound(0)+1;i++)
{
string disk=logDrives.Substring(0,2);
string param="Win32_LogicalDisk='"+disk+"'";
System.Management.ManagementObject moDrive = new
System.Management.ManagementObject(param); // crash
//moDrive.Properties["DriveType"].Value.ToString();
Scripting.Drive thisdrive=FSO.GetDrive(logDrives);
if (thisdrive.DriveType==Scripting.DriveTypeConst.CDRom )
{
MessageBox.Show(thisdrive.Path);
}
}

Jeffrey Tan
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.

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| Subject: Management Object vrs Scripting
| Date: Fri, 19 Sep 2003 14:24:16 -0700
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| I have used System.Management in the past to extract and
| walk thru drives & check their type. I can also do it
| with COM's FileSystemObject. Here I am trying to just use
| the Management Object after using the Directory class...
|
| There seems to be a way to load the System Management
| Object with string path ( 8 overloads ), but every time I
| try a variation it crashes. Any ideas ? Thanks
|
| Scripting.FileSystemObject FSO = new
| Scripting.FileSystemObjectClass();
| string [] logDrives=Directory.GetLogicalDrives();
| for ( int i =0;i< logDrives.GetUpperBound(0)+1;i++)
| {
| System.Management.ManagementObject moDrive = new
| System.Management.ManagementObject(logDrives); // crash
| moDrive.Properties["DriveType"].Value.ToString();
| Scripting.Drive thisdrive=FSO.GetDrive(logDrives);
| if (thisdrive.DriveType==Scripting.DriveTypeConst.CDRom)
|