Difference b/w int32 and intparse??

Question

whats the main difference between int.Parse and Convert.ToInt32?

Mukesh Kumar · Answer

Hi If you've got a string and you expect it to always be an integer (say if some web service is handing you an integer in string format) you'd use Int32.Parse() . If you're collecting input from a user you'd generally use Int32.TryParse()  since it allows you more fine-grained control over the situation when the user enters in invalid input. Convert.ToInt32() takes an object as its argument and I believe it invokes Int32.TryParse() when it finds that the object taken as the argument is a string. Convert.ToInt32() also does not throw ArgumentNullException when it's argument is null the way Int32.Parse() does. That also means that Convert.ToInt32() is probably a wee bit slower than Int32.Parse()  though in practice unless you're doing a very large number of iterations in a loop you'll never notice it. Hope this will help you. thanks

Aishwarya D · Answer

Thanks Mukesh. Its very helpful