Trigger validation upon keypressed

[P.G.Taboada]

Hi,

is there any way to tell FormBinder to react to key key pressed
events?

I am playing with a simple login form. Wanted to showcase disabling/
enabling fields:


enable(password).when(valueOf(username).isNot(""));


I want password to be immediately enabled, as soon as some keys a
pressed.

Suggestions?

brgds

Papick

[Andrew Pietsch]

Howdy,

I'm currently doing this by using a widget that fires value change events after each key press.  Pectin has three classes for this, EnhancedTextBox, EnhancedTextArea and EnhancedPasswordTextBox.  You're example should work if it's bound to one of these widgets. 

There's also a Conditions.textOf(userName).isEmpty() you might want to look at.  I know 0.8 snapshot has an isBlank() condition too but I'm not sure if that's in 0.7 or not.

Cheers
Andrew