It appears (I am sure I missed some docs about this somewhere ... ) that
DynaActionForm String properties are initialized to an empty String,
unless otherwise set in the config file. The <logic:present> will never
work as expected, since there aren't any null String property values.
Subclassing the DynaActionForm (or DynaValidatorForm in my case), and
overriding the initialize() method, the String properties can be set to
null. If these property values are not set again in the action, the values
remain at null. This allows the <logic:present> in the JSP to work as
expected.
If I have missed some glaring negative issue in doing this, please someone
feel free to share it with me.
Thanks,
Susan
On 04/01/2003 01:18:56 PM "Susan Bradeen" wrote:
> Can I use <logic:present> with DynaActionForm properties?
>
> If my form property is null, I don't want the property text box, to
> display in my jsp page. This works fine with an ActionForm, but using a
> DynaActionForm I get a blank text box for the property showing up.
>
> In the code below, the action's if-statement will not invoke, and the
> property value will not be set. Doesn't this mean that the property
value
> should be null? And doesn't that mean that the <logic:present> in the
jsp
> should not invoke either?
>
> JSP contains (in part):
>
> <logic:present name="myform" property="firstName" >
> <html:text property="firstName" />
> </logic:present>
>
> Action contains:
>
> DynaValidatorForm myForm = (DynaValidatorForm)form;
> if (false) { myForm.set("firstName", myBean.getFirstName); }
>
> struts-config contains:
>
> <form-bean name="myform" type="o.a.s.validator.DynaValidatorForm">
> <form-property name="firstName" type="java.lang.String" />
> </form-bean>
>
> I haven't been able to find an example using this tag and this form type
> together. Can anyone please point me to an example of this? And, as
usual,
> other suggestions and corrections to the above are greatly appreciated.
>
> Susan Bradeen
> [EMAIL PROTECTED]
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
