I want to start with a very small and easy tip for TextInput component that not everyone knows and I find very usefull.
This tip is about the "restrict" property of TextInput in Flex, by using this property we can indicate the set of characters that the user can enter into the control.
For example, if we use:
Our TextInput will only allow the user to input capital letters and numbers.
Other example values for this field could be:
There are many different combinations we can use to make the TextInput work as we need, you can see how to use this property here.