c# - An unhandled exception of type 'System.InvalidOperationException' occurred in System.dll -


i executing code below :

class program {     static void main(string[] args)     {         performancecounter performancecounter = new performancecounter("network interface", "bytes sent/sec", "intel(r) 82579v gigabit network connection");         console.writeline(performancecounter.nextvalue().tostring());     } }

i'm getting exception.

an unhandled exception of type 'system.invalidoperationexception' occurred in system.dll additional information: instance 'intel(r) 82579v gigabit network connection' not exist in specified category.

i have tested parameters windows perfmon tool , working in code giving exception.

can please help..

have checked if name spelled correctly? minor error, won't work.

to check names exist in category, try (as suggested here: https://stackoverflow.com/a/29270209/1648463) 

performancecountercategory category = new performancecountercategory("network interface"); string[] instancename = category.getinstancenames();  foreach (string name in instancename) {     console.writeline(name); }

for example, 1 of existing names network interfaces on computer is

intel[r] 82579lm gigabit network connection

(with brackets instead of round brackets).


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