Distinguish zscript from EL
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Revision as of 07:30, 12 July 2010 by Maya001122 (talk | contribs) (Created page with '{{ZKDevelopersGuidePageHeader}} Keep in mind, EL is enclosed by ${}. <tt>${self.label}</tt> is EL. <source lang="xml" > <window> <button label="ok" id="${self.label}"/> ${o…')
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Keep in mind, EL is enclosed by ${}.
${self.label} is EL.
<window>
<button label="ok" id="${self.label}"/>
${ok.label}
</window>
alert(self.label) is not EL, it's a piece of zscript
<window>
<button label="ok" onClick='alert(self.label)'/>
</window>
Although they both look alike, but EL and zscript have different life cycle, EL is not available at certain phase. Therefore in some cases, you can't use EL but zscript.
<window>
<!-- It's wrong, for java don't accept syntax as ${}-->
<button label="ok" onClick='alert(${self.label})'/>
</window>