(MEL)checkBox -edit -value not working as expected.

[absoluteKelvin]

checkBox -edit -value on 

one would expect that editing the checkBox -value to on would trigger the -onCommand.

 if (`window -exists testCheckBoxUI`) 
 {
     deleteUI testCheckBoxUI;   
 }
window -title "testCheckBox" testCheckBoxUI;
rowColumnLayout -numberOfColumns 3;
textFieldGrp -label "Write Something" -text "" -columnWidth 1 120 -columnWidth 2 235 TFGroup;
checkBox -label "On" -value off -onCommand "textFieldGrp -edit -enable true TFGroup;" -offCommand "textFieldGrp -edit -enable false TFGroup;" firstCheckBox;
checkBox -label "TurnFirstCheckBoxOn" -value off -onCommand "checkBox -edit -value on firstCheckBox;" turnCheckBox;
showWindow testCheckBoxUI;

unfortunately it doesn't. Not sure if its a bug or something im missing. It's wierd to me that editing value of a checkBox does not trigger the onCommand.

[g2m.agent]

I think you just set a value of the "firstCheckBox", and this value will not be automatically connected to "TFGroup". You should build a function that can assign values to both. something like this:

proc setOn(){
	checkBox -edit -value on firstCheckBox;
	textFieldGrp -edit -enable true TFGroup;	
}

if (`window -exists testCheckBoxUI`){
     deleteUI testCheckBoxUI;   
}
window -title "testCheckBox" testCheckBoxUI;
rowColumnLayout -numberOfColumns 3;
textFieldGrp -label "Write Something" -text "" -columnWidth 1 120 -columnWidth 2 235 TFGroup;
checkBox -label "On" -value off -onCommand "textFieldGrp -edit -enable true TFGroup;" -offCommand "textFieldGrp -edit -enable false TFGroup;" firstCheckBox;
checkBox -label "TurnFirstCheckBoxOn" -value off -onCommand "setOn();" turnCheckBox;
showWindow testCheckBoxUI;