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POHow to invalidate a field in seam?
 

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  1. POHow to invalidate a field in seam?
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    <p>I need to validate two user input fields against each other in seam. Field1 must be greater than Field2 for each row in a ui:repeat tag. As of now, i have the two fields wrapped in an s:decorate tag that wraps all input in an s:validateAll tag. This allows me to float an error message out to the right of the fields if validation fails for any of them.</p> <p>For example (i can't insert an image, so i have to use ascii picture, forgive the low-quality please, italics indicate red text):</p> <p><em>Label:</em> | Yellow | 0|% Red: | 0%| | <em>Yellow and Red must be between 0 and 100, and Yellow must be greater than Red.</em><br/><br/> <em>Label:</em> | Yellow | 0|% Red: | 0%| | <em>Yellow and Red must be between 0 and 100, and Yellow must be greater than Red.</em><br/><br/></p> <p>The two controls and the decorate xhtml are below. NOTE: The "value between 0 and 100" validation is already taken care of via hibernate annotation. I only <strong>need to know how to validate these 2 fields against each other to make sure yellow is greater than red, and still have the error message show up.</strong></p> <p>My desired solution would be to set the #{invalid} property for the corresponding s:decorate tag, so the error message will show up, but i'll take any ideas.</p> <p>The inputs:</p> <pre><code>&lt;table&gt; &lt;ui:repeat value="#{action.List}" var="var"&gt; &lt;s:decorate template="/layout/decorateMultipleInputs.xhtml" &gt; &lt;ui:define name="label"&gt; Label: &lt;/ui:define&gt; &lt;ui:define name="input"&gt; &lt;h:panelGrid columns="8" frame="border"&gt; &lt;h:outputText value="Yellow:" /&gt; &lt;h:inputText value="#{var.yellow}" style="width:25px; text-align:right" maxlength="3"/&gt; % &lt;h:outputText value="Red:" /&gt; &lt;h:inputText value="#{var.red}" style="width:25px; text-align:right" maxlength="3"/&gt; % &lt;/h:panelGrid&gt; &lt;/ui:define&gt; &lt;ui:define name="message"&gt;Yellow and Red must be between 0 and 100, and Yellow must be greater than Red. &lt;/ui:define&gt; &lt;/s:decorate&gt; &lt;/ui:repeat&gt; &lt;/table&gt; </code></pre> <p>and the decorateMultipleInputs.xhtml:</p> <pre><code>&lt;ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:s="http://jboss.com/products/seam/taglib"&gt; &lt;tr&gt; &lt;td&gt; &lt;s:label styleClass="#{invalid?'error':''}"&gt; &lt;ui:insert name="label"/&gt; &lt;s:span styleClass="required" rendered="#{required}"&gt;*&lt;/s:span&gt; &lt;/s:label&gt; &lt;/td&gt; &lt;td&gt; &lt;s:validateAll&gt; &lt;ui:insert name="input"/&gt; &lt;/s:validateAll&gt; &lt;/td&gt; &lt;td&gt; &lt;s:div styleClass="error" rendered="#{invalid}"&gt; &lt;h:graphicImage value="/images/error.gif" /&gt; &lt;/s:div&gt; &lt;/td&gt; &lt;td&gt; &lt;s:div styleClass="error" rendered="#{invalid}"&gt; &lt;ui:insert name="message"/&gt; &lt;/s:div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/ui:composition&gt; </code></pre>
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    1. USJason Millikan
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