Dynamically create components

Is the Smart Client able to create components dynamically?

For example, there is a textbox and a HStack.
When the user inputs a number in the textbox, the HStack will generate a row of corresponding "star" image elements,
i.e. If "5" is entered, there will be 5 stars; inputting 10 will result in 10 stars.

Is it possible to code such type of layout creation in Smart Client?