hiding controls

[nocomm]

Hi again!

Is there a possibility to hide controls and then activate them again, with also the ability to change them?!
Example: I defined a login screen with a label (to display an error text if login fails). First the label should be completely invisible, and when the login failed it should appear and contain a specific text, depending on the error (user not valid OR password not correct).

I tried the following:
childWidget.dispose(); // at the beginning
parentWidget.layout(true); // when login failed to reactivate all controls
childWidget.setText("blabla"); // ERROR

But in that case I get a runtime error, as a disposed item can not be changed.

So what are my possibilities?

I guess I could work with the setBounds-methods to let the childWidget disappear, but I do not like that workaround....

Thanx for your help again...
nocomm

[admin]

You can try to use TitleAreaDialog, or may be Wizard's (as I can see from your previous post, you have several steps). These controls allow to set messages, try for example in Eclipse create class with same name, or with wrong name.

[nocomm]

actually these all seem to much work for me...

I use the label as an info area now, so when no error occured there will be a short information on the possible program steps available => I do not need to hide the label now....

thank you anyway
nocomm

[admin]

This is directly as Java-wizards (and I think TitleAreaDialog) behaves - it shows some "good" message, and if there is some warning or error, it shows warning/error. I think that in any case it is good to use specially designed dialogs.
If you want to hide some control, for GridLayout (not for all cases, of course) you can set vertical hint in GridData to zero and call parent.layout().

[Paul Singleton]

Is there a possibility to hide controls and then activate them again, with also the ability to change them?!

Is this a job for StackLayout?