z30-constraint.zul

ZK是一个Ajax Java Web框架

<?xml version="1.0" encoding="UTF-8"?>

<!--
constraint.zul

{{IS_NOTE
	Purpose:
		
	Description:
		
	History:
		Wed Apr 11 15:01:38     2007, Created by tomyeh
}}IS_NOTE

Copyright (C) 2007 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
}}IS_RIGHT
-->
<window title="Custom Constraint" border="normal">
	<zscript><![CDATA[
class MyConst implements Constraint {
	public void validate(Component comp, Object value) {
		if (value == null || value < 100)
			throw new WrongValueException(comp, "At least 100 must be specified");
	}
}
class MyCustomConst extends MyConst implements CustomConstraint {
	public void showCustomError(Component comp, WrongValueException ex) {
		errmsg.setValue(ex != null ? ex.getMessage(): "");
	}
}
Constraint ctt = new MyConst();
Constraint custom_ctt = new MyCustomConst();
	]]></zscript>
	<vbox>
	Test of CustomConstraint
		<hbox>
		<button label="Retrieve value" onClick="i1.getValue();i2.getValue()"/>
		shall cause an error box even no input below
		</hbox>
		<hbox>
	Enter a number at least 100 (customize look):
	<intbox id="i1" constraint="${custom_ctt}"/>
	<label id="errmsg"/>
		</hbox>
		<hbox>
	another number at least 100 (standard look): <intbox id="i2" constraint="${ctt}"/>
		</hbox>
		<hbox>
	any number: <intbox/>
		</hbox>

	Test of between/and
		<hbox>
		A date between 2007/12/25 and 2007/12/03
		<datebox constraint="between 20071225 and 20071203"/>
		</hbox>
		<hbox>
		A date before 2007/12/25 (include)
		<datebox constraint="before 20071225"/>
		</hbox>
	</vbox>
</window>