I have a simple vbscript for retrieving the Windows version:
Set objWMI = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
Set colVersions = objWMI.ExecQuery("Select * from Win32_OperatingSystem")
For Each objVer in colVersions
ver = objVer.Version
Next
Is is possible to get the first record or do I have to loop over all records in th开发者_如何转开发e collection. All examples I've seen are with For Each
construction. I receive Expected end of statement error when I try:
ver = colVersions[0].Version
It looks like the return value of ExecQuery
is not a proper collection.
For Each objVer in colVersions
ver = objVer.Version
exit for
Next
On Windows Vista and later, you can use the ItemIndex
method to get a collection item by its index:
ver = colVersions.ItemIndex(0).Version
On earlier Windows versions, there's no way to do this I'm afraid.
Set objWMI = GetObject("WinMgmts:{ImpersonationLevel=Impersonate}!\\.\Root\CIMV2")
Set objOS = objWMI.ExecQuery("SELECT * FROM Win32_OperatingSystem").ItemIndex(0)
msgBox objOS.Version
Edit for Explanation: By adding .ItemIndex(0) to your original query, you are grabbing the first item in the collection. This will eliminate the need for a For/Each loop.
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