Dataset questions

HI,
I have some questions concerning the datasets usage:

1- Does the tables added to a dataset MUST be related or can I add as many (reasonably) as I want without necessarely relate them?

2- Is there any advantages in using more than one dataset for one connection? I mean, if I can add my tables in a single dataset, what would be the advantage in using more that one dataset?

3- I have a Parent that is related to one of its child, will the child table be filtered automatically on the parent table row?

Thank you for your help,
Christian

Answer
1.You can add as many tables you want to dataset whithout relating them

2.As far as i know there is no advantages for using more then 2 dataset excepts that it will take up more memory


3.No it will not set the relationships automatically, you will need to create the relation manually in your dataset