How to validate entered data??

Classic Servoy
1

Hello Everybody

I want to do some validation.
There are to date fields on my form.
comfbis shouldn’t be <= comfab.
At onFocusLost of comfbis i do:

function m_datumbis_ok() 
{
	if (comfbis <= comfab)
	{
	globals.DIALOGS.showInfoDialog(globals.gg_hallo_user,"Datum bis sollte grösser als Datum ab sein!",'OK');			
	elements.comfbis.requestFocus(false);
	
	}
}

globals.DIALOGS.showInfoDialog comes from mod_dialogs !!!

With smartclient everything is ok!
I can not leave comfbis until the value is greater then comfab.

But with webclient:
If comfbis <= comfab the messagebox is shown, but the focus is not on comfbis???
After closing the messagebox i can navigate to each other field on the form?

What do i miss??
How to validate with webclient??

Regards
Albert

2

In general I’d say onDataChange is a better event than onFocusLost. You can let onDataChange return false and the user will not be able to leave that field.