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error 404 preOpenControl | revDocs | RunRev
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Product Edition
Version
preOpenControl
Basics
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Type
Message
Syntax

preOpenControl

Introduced
3.5
Environment
Desktop,Server,Web
Platform Support
Mac OS X,Windows,Linux
Security
None required
Summary
Sent to a group when you go to the card that contains it and to a background group when going from a card which it is not placed on to one where it is.
Examples

on preOpenControl

resizeMyObjects

put empty into field "Customer Address" of me

end preOpenControl

Additional Comments
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Handle the preOpenControl message to update a group's appearance before it appears on screen.

Comments

For groups with their backgroundBehavior property set to true, the preOpenControl message is sent immediately after the preOpenBackground message is sent to the card being opened. For non-background groups, it is sent after the preOpenCard message.

For nested groups, the preOpenControl message is sent to the parent group first, if it is passed or not handled by the parent group, then it passes through each child group in reverse layer order (i.e from highest to lowest).

The actual navigation is not triggered by the preOpenControl message, so blocking the message and not allowing it to pass does not prevent the card with the group from opening.

User Comments
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