I've found ArrayList works better in dynaActionForms especially if you're dynamically generating forms. I think this because its a big fat pain in the arse to create new dynabeans (have a play with bean utils for a day and you find this out).
When setting the size dynamically you need to scope the form to session.
<action path="/myaction" scope="session" ..
I use arraylist as the form property type, i don't think that arrays work but i could be wrong
<form-property name="myprop" type="java.util.ArrayList" /> [notice you dont set the size]
then in your action when your loading the form
ArrayList list = ...
theForm.set("myprop",list);
and also (I guess this shouldn't be required but it is)...
request.setAttribute("myprop",list);
then
<logic:iterate id="prop" name="myForm" property="myprop">
<html:text name="prop" property="foo" indexed="true" />
</logic:iterate>I guess you could apply the same principles using non dynamic action form. I imagine that using an array rather than arrayList should work too.
Cheers Mark
On Tuesday, October 28, 2003, at 02:31 AM, Rajat Pandit wrote:
Hello all,
I finally managed to solve the problem, and now that I know it all seems
so damn awfully simple!!! , I wish the docs had explained it in a much
simpler manner. But I guess it was more about the form and ActionForm
thing than about the indexed properties. I am writing a HOWTO on all
possible variations of indexed properties now. Shall post it on the
mailing list for your review.
Thanks a lot nick, for the pointers, it was a great help.
Just one more question, it works just fine if I define it as an
ArrayList, but in case I want to use it as an array, how do I workaround
for the size. One way is to assume a higest upper limit. (which I think
is lame) Is there someone I can inform the actionForm about the last
value of the index of the <logic:iterate.. Tag ... I mean this could
sound rather silly...but just to know is there a possibility?
Thanks again for all ur time. And yes mark! Thanks for all the kick in the butt!! Helped me think rationally :D
-----Original Message----- From: Rajat Pandit [mailto:[EMAIL PROTECTED] Sent: Sunday, October 26, 2003 9:39 PM To: [EMAIL PROTECTED] Subject: Index properties (once again)
Hello sorry for posting the same question again and again. But I seem to
have gained something on this. Now I have a few (more) questions. Maybe
someone could help me figure out what or where I am getting it wrong.
This is the case. I have a product, with different states(checbox) and each state has to have a bidAmount (text area) and a transaction type(radio button). I want the form to be generated such that for validation.
a. I can check If the checkbox(for the state) has been checked the bidAmount and transaction type has been selected.
Now my question is,
a. in the action form. Do I need to defind the bidAmount as an array
b. I didn't know about this until know, but are only String type allowed
in actionform ( ihavent read about this anywhere except on one of the
posts in this mailing list) c. I have set the setter and getter for
(lets take the example of bidAmount only) like this.
public String getBidAmount(int index) { String tmp = new String(); System.err.println("Value of index: " + index); try { tmp = bidAmount[index]; } catch (Exception e) { System.err.println("Error: " + e.getMessage()); } return tmp;
}
public void setBidAmount(int index, String value) { System.err.println("index: " + index); System.err.println("Value: " + value); System.err.println("------------------"); this.bidAmount[index] = value; }
And the corresponding jsp tags as follows.
<logic:iterate id="state" name="STATES" indexId="currIdx">
<tr bgcolor="#F8F8F8">
<td align="left" valign="top">
<html:multibox property="stateId" styleClass="flat">
<bean:write name="state" property="id" />
</html:multibox> <bean:write name="state" property="name" />
</td>
<td >
<html:text name="bidForm"
property='<%="bidAmount["+currIdx+"]"%>' styleClass="flat" size="3" />
</td>
<td align="center"> BC <html:radio name="bidForm" property="mode" value="2" titleKey="app.bcall" indexed="true" styleClass="flat" /> | SC <html:radio name="bidForm" property="mode" value="1" titleKey="app.scall" indexed="true" styleClass="flat" /> </td>
<td align="right">
<bean:write name="state" property="buyingCall" ignore="true"
/>
</td>
<td align="right">
<bean:write name="state" property="sellingCall"
ignore="true" />
</td>
</tr> </logic:iterate>
I know the the inline scriptlet is very ugly, but this was the only way
I could get it to call the index number in the getter method. However
the desperate attempt (try and catch) makes the form work (not much use)
I cant get the the setter to set the values in the individual array, and
get a stack trace error instead.
I am not really sure where Is wrong and non or the documentataion define
things very clearly (or maybe I am poor in comprehension) Apologies
again to people who think I am bothering them by posting again and
again, but this is my last hope!!
Hope someone helps! (ps: once I am through with this, I shall write my own HOW TO for the indexed properties and its use)
Rajat Pandit | [EMAIL PROTECTED] +91 612 3117606 [ Developer and Part Time Human Being]
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