How to handle unchecked checkboxes in JSP?

I have been trying to use <input type=checkbox > tag to handle the checkbox , but it only sends values for checkboxes tht are checked .. if not checked then those checkboxes are not handled, i also came across a code like
<% String checked = (del.equals("")) ? "" : "checked"; %>
<input type=checkbox name=del value="Y" <%=checked %>/>
but this gives error tht it does not recognise 'del' attribute..
please send me any solution at [email protected].
thanks in advance.

Prakash_Pune wrote:
tell me some Debugging tech. so i can overcome from my problem.....Do you use an IDE? Any IDE ships with a decent debugger where in you can just execute the code step by step, explore the current variable values and check what exactly is happening. For example Eclipse or IntelliJ. If you don´t use an IDE, then just place some System.out.println() or Logger.debug() statements at strategic locations printing the variables of relevance so that you can track in logs what exactly is happening.
or tell any other way to find is my page is thread safe or not...Just write correct code and narrow the scope of the variables as much as possible. If you for example assigned the user object to a static variable or as a servlet´s instance variable, then exactly the same user object would be used everywhere in the application. That kind of logical things.

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How to handle user session in JSP.......

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tell me some Debugging tech. so i can overcome from my problem.....Do you use an IDE? Any IDE ships with a decent debugger where in you can just execute the code step by step, explore the current variable values and check what exactly is happening. For example Eclipse or IntelliJ. If you don´t use an IDE, then just place some System.out.println() or Logger.debug() statements at strategic locations printing the variables of relevance so that you can track in logs what exactly is happening.
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I like to use html:multibox feature in my jsp with ADF Data Binding. I am able to retrieve checked values in the DataForwardAction form. However, when the page is refreshed, the checkboxes are not persistent and yet an error showing
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I see a problem with your use case, which has nothing to do with jdev or java:
How do you identify the user when he comes back to finish the form?
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By,
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Kranthi,
I assume your check box has static list of values like
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Message was edited by:
BURAK
Message was edited by:
BURAK

sorry I can't understand you, can you please explain it or post here any codes about it?

How to handle radio /checkbox options

If you have a report like so
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Hi Kiranmai,
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event->event_class
event->event_id.
event->event_name
event->event_type
event->event_server_name
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Donot forget to assign points for helpful answers.
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Hello everybody,
In a JSP page I would like to create checkbox dynamically on every
result line (detail line), then check in some of them and finally pass the checked lines to a JSP bean which will handle them on a submit button press.
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<input type=checkbox" name="value2">
etc
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Is there anobody who has any experience from case like this?
Please, help me.
Best regards,
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In my application I have a table component that display data from the database and a submit button outside the table component, the first column in the table component is a checkbox, How can i uncheck the checkbox in the table component when the submit button is clicked?
Thanks in advance.

Something like this ... I THINK it will uncheck all checkboxes in table, but I'm not positive ... you can test!
if checkbox id is checkbox1...
<script type="text/javascript"><![CDATA[
function disableCheckbox()
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NEXT...
go to Design View and select your button and go to properties section and select onClick property and insert this javascript in dialog...
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Hi there, I'll tweak your code a little bit to something like this:
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Hi,
Can you help me how to handle checkbox in Struts?
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Hi,
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Model of how APEX handles data (values)?

Reference {thread:id=2486655}
I'm trying to get a model of how APEX handles data (values). There are several places(?) that data (values) can exist. Or so it seems. I'm trying to understand how these work -- to put all the pieces together.
Question:
A) Where data can be?
1) In the database
2) In the session
3) Rendered -- and hence displayed on the screen, if a displayed value -- but not in the session
4) In perhaps(?) some working memory pool(?) but different from the page rendered values I see on the screen?
5) Other?
Why do I think this is relevant?
Question:
B) If there are rendered values and session values different from the rendered values, then when code executes, which of these values (rendered or session) is it executing against?
And maybe the answer is, "You don't understand what's going on." Yes, "Exactly!" Hence the question.
Best wishes,
Howard

Howard (DBA in Training) wrote:
I'm putting this together now. For example:
I set the value of a Page Item (say, :P2_DATA) to "BEFORE" in a Before Region process and change it to "AFTER" in an After Region Process. 'BEFORE' was displayed on the screen but 'AFTER' was in the session state. So I see that PL/SQL changes these values in the session state. But it doesn't "go back" to change the HTML after the region has been rendered -- hence we see BEFORE shown on the screen. (I'll have to think about what a Dynamic Action does.)
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1) So why does a default value not get put into the session state?Several reasons, among them:
*1. When/why is the value required?* Region items (and thus their source and default values) are rendered in region/item sequence order. The item's source/default value would therefore not be available in session state until it's rendering point. This is frequently later in page show processing than the value is actually required, such as the common use case of including a data value in the page or region title. Setting the value in a Before Header/Regions computation or process makes it available as required before the item is actually rendered.
*2. The rendered page might not be submitted.* Default values are typically set when a page will create a new row. Consider the situation where the user clicks a "Create" button and is presented with an order entry form containing several default values. They then decide they don't want to create a new order after all, and navigate away from the form page via some mechanism that uses a redirect rather than a submit (such as a default "Cancel" button). This means that no page submit processing is performed, and generally that no session state management is performed. If the default values were set in session state, the order entry page would contain the default values for the non-existent order despite the user never submitting it. This may have unwanted side-effects if these values are referenced elsewhere in the application, and therefore would require extra session state management to be built into the application.
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2 & 3 are particularly significant in basic wizard-generated applications. Doing things in this way, the wizard-generated DML and navigation "just works", without the need for additional session state management.
2) Is there a Page Item setting that causes the default value to be saved to the session state?No. Hopefully the explanations above provide sufficient reason to show why this is genearlly not desirable. On the rare occasions when it is required, set the session state value using a computation or process.
<sup>1</sup> There are other reasons—mainly security related—that make it good practice to perform such checks in more complex and internet-facing applications anyway.

How to Controll Dynamic Checkbox Groups

i want to create checkbox groups dynamically. Each group will have at least one child checkbox. if i select parent check box all child checkboxes should be checked.if i uncheck parent checkbox all child checkboxes should be unchecked.
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