ManagementObjectSearcher error [migrated]
- by Piotrek
Some of our customers inform us that in some cases following error appears:
System.Management.ManagementException: Blad dostawcy.
at
System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus
errorCode)
at
System.Management.ManagementObjectCollection.ManagementObjectEnumerator.MoveNext()
The error is generated while trying to loop through a colection returned by Get() method of the System.Mamangment.ManagementObjectSearcher object.
This is the code of my method:
private bool PrinterExists(string printerName)
{
bool retVal = false;
SelectQuery q = new SelectQuery("select caption from win32_printer");
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(q))
{
foreach (ManagementObject printer in searcher.Get())
{
if(printer["Caption"].ToString() == printerName)
{
retVal = true;
break;
}
}
}
return retVal;
}
It seems that the problem appears only on Windows XP. The only workaround I know is reconstruction of WMI database. It sometimes helps, but unfortunatelly not always.
Can anyone tell me what is the reason of this error and how can I fix it?
