Can I Add Integer Array To SQLCommand As Parameter?

I'm trying to build an SQL string that should look like this when executed:

UPDATE [Table] SET Active = 'False' WHERE ID IN (3, 4, 5, 6, 7, etc.)

I'm using the convention (in code behind):
SqlCommand cmd = new SqlCommand("UPDATE [Table] SET Active = 'False' WHERE ID IN (@TheIDs)", connection);
cmd.Parameters.Add("TheIDs", SqlDbType.Text).Value = theIDsAsAnArrayList;

But logically enough I cannot insert them as a text string as they have to be integers seperated by commas.

Question: How can I convert an Array of integers into ... well, a string without the quotes, if you know what I mean?

As it cannot end up like this: UPDATE [Table] SET Active = 'False' WHERE ID IN ("3, 4, 5, 6, 7, etc.")

Note the quotes around the integers.

Any hints on doing this with security in mind are welcome. I know I can concatenate the whole lot as strings, but this is unsecure, so I'm not going for that approach.