Hi Swarna,
There are two problems with your approach.
First, @Session cannot be used with checkboxes since unchecked checkboxes are
not submitted when not checked. It may work, but it's not a supported feature
since it is very likely to fail.
Second, if a field with the same name is submitted as a field present in
session, @Session WON'T restore the previous value because it suppose you want
to replace old values with the new ones.
For example, if your first page contains:
<d:column title="Add to Pack">
<s:checkbox name="selectedMessages" value="${Task.task_Id}"/>
</d:column>
And your second page contains:
<d:column title="Add to Pack">
<s:checkbox name="selectedMessages[some_higher_indexes]"
value="${Task.task_Id}"/>
</d:column>
The the values from the first page will be lost since the second request submit
new values for selectedMessages.
You can easily check if values are in session by using the key attribute in
@Session.
For example, with @Session(key="selectedMessages_key"), you can get the
selectedMessages by using session.getAttribute("selectedMessages_key").
Remember that field is saved in session after the EventHandling lifecycle
stage, session.getAttribute("selectedMessages_key") will not return the
expected value before that time.
The complete documentation about @Session is here:
http://www.stripesframework.org/display/stripes/Save+ActionBean+fields+in+session
Christian
________________________________
From: swarna mahesh [mailto:[email protected]]
Sent: Wednesday, November 18, 2009 5:19 AM
To: [email protected]
Subject: [Stripes-users] @Session for list
I am sending the results from a checkbox in a display table and submit it to my
action. The code works fine for the first time, but it doesnt save anything in
the session, when i want to add more items, the previous values are gone and
only the current selection is saved in the list. How do I retain the values in
session when I try to add more items through the checkbox?
Code in my jsp:
------------------------
<d:column title="Add to Pack">
<s:checkbox name="selectedMessages" value="${Task.task_Id}"/>
</d:column>
---- <p><s:submit name="Add_to_Pack" value="Add to Pack"/></p>
----------------------------------------------------------------------------------------------------------------------------------------
Actionbean code:
--------------------------
@Session
private List<String> selectedMessages;
public List<String> getSelectedMessages() {
return selectedMessages;
}
public void setSelectedMessages(List<String> selectedMessages) {
this.selectedMessages = selectedMessages;
}
@HandlesEvent(value="Add_to_Pack")
public Resolution Add_to_Pack() {
return new ForwardResolution(VIEW);
}
--
Best Regards,
Swarna
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