Question

How can I enable or disable a group of components in flex (flash builder 4)?

For example, if I have a window with several fields, I want to disable them based on the users permissions.

I know I can add the enabled=”true” or “enabled=”false”, and I can also use enabled=”{writeAccessVar}”

However, I am looking for more ideas, as I might have more than one group of fields on the screen, or more complicated user permissions.

For example, I will currently have one field with write access, the other fields on the screen read only for a certain user level.

For a higher level user, all fields are writable. Lower level, all are read-only.

Thanks!

Answer 1

You can add a variable accessLevel that is equal to the access level of the user:

[Bindable]
var accessLevel:int = 0; // 0: low level, 1: next level, 2: next level, an so on

And then, you can set the enabled property of each component according to accessLevel:

enabled="{accessLevel >= 0}"

---

To improve the readability of your code, you can declare constants for the different levels

public static const ACCESS_LEVEL_LOW:int = 0;
public static const ACCESS_LEVEL_NORMAL:int = 1;
public static const ACCESS_LEVEL_HIGH:int = 2;


// ...
enabled="{accessLevel >= ACCESS_LEVEL_LOW}"
// ...
enabled="{accessLevel >= ACCESS_LEVEL_NORMAL}"
// ...
enabled="{accessLevel >= ACCESS_LEVEL_HIGH}"