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How to bind event on enabled property ?
Message
 
To
04/04/2012 11:16:47
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
01540274
Message ID:
01540298
Views:
48
>i want to execute a procedure whenever a button's enabled status change.
>how to do it ?

You can do something like this:
loForm = CREATEOBJECT('myForm')
loForm.Show(1)

DEFINE Class myForm as FORM
	ADD OBJECT Button1 as CommandButton WITH Caption = 'Click Me', Enabled = .t., left = 0, top = 2, height = 24
	ADD OBJECT Button2 as CommandButton WITH Caption = 'Disable "Click Me" button', Enabled = .t., left = 100, top = 2, WIDTH = 175, height = 24
	
	PROCEDURE Button2.Click()
		thisform.Button1.Enabled = not thisform.Button1.Enabled
	ENDPROC
	
	PROCEDURE Button1StatusChange()
		thisform.Button2.Caption = IIF(thisform.Button1.Enabled, 'Disable', 'Enable') + ' "Click Me" button'
	ENDPROC
	
	FUNCTION Init()
		BINDEVENT(thisform.Button1, 'Enabled', thisform, 'Button1StatusChange', 1) && 1 so it changes the property before firing the Button1StatusChange method
		RETURN DODEFAULT()
	ENDFUNC 
ENDDEFINE
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