validation of inputText in rich:dataTable

[srikanth Thandra]

How to provide validation for inputText component in rich:dataTable?

   
<rich:dataTable value="#{sessionScope.listValues}" var="listValue">
    <h:outputText value="Name:"/>
    <h:column inputText value="#{listValue.name}"/>
</rich:dataTable>
 

Suppose that sessionScope listVlaues has two objetcs. So dataTable contains two outputTexts and two InputTexts. Now my requirement is, I have to show a validation message "Enter only Number" for inputText under below of inputText.

How can i achieve this? kindly post the reply as soon as possible

[Tim Holloway]

You've miscoded your inputText. It would be more like:

<h:column>
  <f:facet name="header">
      <h:outputText value="My Column"/>
  </f:facet>
  <h:inputText id="text1" value="#{listValue.name}"
     validationMessage="enter only number">
     <f:validatePattern pattern="^[:digit:]+$"/>
   </h:inputText>
  <h:message for="text1"/>
</h:column>

I don't remember the exact name or format of the regex pattern validator, however, so this is just a guideline. Also, as written the error message will be to the right of the text control unless you have text wrapping in that column. Solutions include the brute-force approach of adding a raw HTML <br/> tag to force a new line (not recommended) or wrapping the input control and message in a dataGrid component that's 1 column wide.