Is it possible to store multiple data types in an ArrayList using C#?

Question

In C#, can I store multiple data types in an ArrayList? Like;

myArrayList.Add(false);
myArrayList.Add("abc");
myarrayList.Add(26);
myArrayList.Add(obj);

I know i can make a DataTable or a class for it.

But, please let me know: is this possible? And if so, what are it's De-merits of being a collection class?

Answer 1

Yes you can store like this

ArrayList aa = new ArrayList();
aa.Add(false);
aa.Add(1);
aa.Add("Name");

ArrayList belongs to the days that C# didn't have generics. It's deprecated in favor of List. You shouldn't use ArrayList in new code that targets .NET >= 2.0 unless you have to interface with an old API that uses it.

ArrayList vs List<> in C#

Answer 2

i guess List<object> help you.

Answer 3

Yes, you can store objects of different types in an ArrayList but, like pst mentioned, it's a pain to deal with them later.

If the values are related in some way you are probably better off writing a class to hold them. This will give you strong typing and the values will be named so someone else looking at the code will have a chance of understanding what's going on.