Question

I have one form containing one checkbox(not checkbox list)and one textfield.
If the checkbox is cheked then no need to enter the value for textfield.
If the check box is not checked then I need to validate the textfield has mandatory.
How can I do using expression validator.Is this Possible in struts2.0.11.

Let me know

Thanks in advance

Answer 1

Use fieldexpression validator. Example :

SomeAction.java

private SomeObject object; // with getter & setter
private boolean doNotCheck; // with setter

input.jsp

<s:textfield name="object.field" />
<s:checkbox name="doNotCheck" />
<s:fielderror fieldName="object.field" />

SomeAction.validation.xml

<validators>
    <field name="object.field">
        <field-validator type="fieldexpression">
            <param name="expression">
                <![CDATA[ isDoNotCheck() ? true : (object.field != null && !object.field.isEmpty()) ]]>
                <!-- OR -->
                <!-- isDoNotCheck() ? true : !object.field.isEmpty() -->
            </param>
            <message>This is a mandatory field</message>
        </field-validator>
    </field>
</validators>