In Microsoft System Center Configuration Manager 2007, when an error occurs in an asynchronous call, the error object is passed as the second parameter to the OnCompleted method. Inside your OnCompleted implementation, you check the error object the same as you would for a synchronous call.

You determine if there is an error by checking the HResult parameter of the OnCompleted method.

Example

This VBScript sample displays error information if there is a error during an asynchronous operation. To use this code, replace the sink_OnCompleted method in How to Perform an Asynchronous Configuration Manager Query by Using WMI. To test, change the query to an invalid query such as Select * From ?????.

For information about calling the sample code, see Calling Configuration Manager Code Snippets.

Visual Basic Script  Copy Code 
Sub sink_OnCompleted(HResult, oErr, oCtx)
	WScript.Echo "All collections returned"
 
	if HResult <> 0 Then 
	' Determine the type of error.
		If oErr.Path_.Class = "__ExtendedStatus" Then
			WScript.Echo "WMI Error: "& oErr.Description		
		ElseIf ExtendedStatus.Path_.Class = "SMS_ExtendedStatus" Then
			WScript.Echo "Provider Error: "& oErr.Description
			WScript.Echo "Code: " & oErr.ErrorCode
		End If
	End If
	bdone = true
End sub

Security

Using script to pass the user name and password is a security risk and should be avoided where possible.

See Also

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