Pass an array to a class method and make sure contents don't change

[T0AD]

I've created a class, and I'm passing an array to one of it's methods. The problem is, the original array's contents change even though the argument is declared ByVal. The code in the method only refers to the array that's passed as an argument, not the original... does anyone know why the original one is changing?


There's a thin line between genius, and insanity!

 

[chiph]

Using ByVal to pass an array only means that the array itself is protected from change. The contents of the array can be changed by the code in the function.

If you want to make a copy of the array, look at calling the .Clone method before passing it to your function. Note the warning in the MSDN documentation that the copy is only a shallow copy, not a deep copy.

Chip H.


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[T0AD]

Okay I'll check it out. Thanks for your help.

There's a thin line between genius, and insanity!