org.eclipse.xwt.tests/src/org/eclipse/xwt/tests/databinding/validation/Validation_ToolTip_Attribute.xwt

<Shell xmlns="http://www.eclipse.org/xwt/presentation" xmlns:x="http://www.eclipse.org/xwt"
	xmlns:y="clr-namespace:org.eclipse.xwt.tests.databinding.validation"
	xmlns:xwt="clr-namespace:org.eclipse.xwt.converters.validators"
	xmlns:u="clr-namespace:java.util" Size="400, 300">
	<Shell.layout>
		<GridLayout numColumns="1" />
	</Shell.layout>

	<Label text="Input a text in first Text > 8 characters " />
	<Text x:name="text1" 
	    text="{Binding name=MyBinding, elementName=text1,path=text,updateSourceTrigger=PropertyChanged,validationRule=y:SizeValidationRule}"
		toolTipText="{Binding source={ValidationStatus sourceName=MyBinding}}"/>
</Shell>