UI Design / Flow - what should Save and Cancel do?

1. Should cancel be on left or right?
2. Should cancel be a button or link?
3. What is the use of cancel button?

Should cancel be on left or right?

In most languages, people are accustomed to read from left side to right side, so it accords with our speech habits to put ok-key on the left side of cancel-key. 2. “Ok/cancel” type make it easier to see and select ok-key.

Should cancel be a button or link?

To summarize

The cancel option is similar to aborting an action, and therefore similar to navigating back to the previous state of the UI. Navigation is represented in web UI as hyperlinks, and thus the cancel option should be a hyperlink.

What is the use of cancel button?

A cancel button is clicked whenever the user presses the ESC key, regardless of which other control on the form has the focus. Such a button is usually programmed to enable the user to quickly exit an operation without committing to any action.