javajspstruts2displaytagognl

How can use <s:if> tag in Struts 2?

I have the below Struts 2 tag, I need to check if property value="#attr.row.Commentaire is not empty and if it's not, display a small icon where the user can click it and consult the contents of the property value="#attr.row.Commentaire.

How can I use the <s:if> tag of Struts 2 efficiently to do that?

<display:column title="Commentaire" sortable="true" sortProperty="Commentaire"
    class="alerte_td_commentaire">              
<s:property value="#attr.row.Commentaire"/>
Solution

  • Use the following code

    <s:if test="#attr.row.Commentaire != null && #attr.row.Commentaire != ''">

    The if tag uses the test attribute to evaluate OGNL expression to a boolean value.

    You may also want to use an a tag which renders a HTML anchor tag that could be used combined with the if tag to

    consult the contents of the property

    There's also a debug tag that could be used to wrap other tags to show you a link that will render a debug data.

    <s:debug>  
 <s:property value="%{#attr.row.Commentaire}"/>
</s:debug>