Performance counter error

[stricknyn]

Hello all,

I have this code sample from a book I'm reading which looks to be incorrect:

Imports System.Diagnostics

Sub Main
        Dim pc As New PerformanceCounter("PerfApp", "Clicks", False) 'excepiton here
        pc.Increment()
        counterLabel.Content = pc.NextValue().ToString()
End Sub

There excepion message I get is: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly.

I looked for a property to see if I can set it but couldn't find one. Anyone know how I can correct this error?

Thanks,

Strick

[jmcilhinney]

30 seconds in the documentation and you'd have had your answer. Have you read the documentation for the PerformanceCounter constructor you're using? Do you know what the parameters mean?

[stricknyn]

Hello,

Thanks for your response. Yes I know what they mean and still cannot get it to work (spent about an hour trying to get it to work and surfing the net for answers) which is why I turned to the forum as a last resort.

This statement is word for word from a book, so I'm expecting it to work, but it doesn't. I've tried flipping it to true, but I get a "category does not exist" exeption. Since the book says it should be false, I'm trying to get it to work based on how I'm recieving it.

Thanks,

Strick

[jmcilhinney]

I would recommend that you provide all the relevant information up front. Your first post says you were passing False to the 'readOnly' parameter and the error message you quoted says that the counter needed to be created read-only, so the obvious solution to that is to pass True to that parameter. If you'd already tried that then that would qualify as relevant information.