JSP checkbox

I'm relatively new to Java and I have a simple problem that I need help with. I have a JSP with checkboxes. The checkboxes all have the same name but have different values. They can be independently "checked" or "unchecked" by the user. Question, when my servlet reads the parameters I can process the values and have access to the unique name but I can't find any way to determine if the name/value pairs are "checked" or "unchecked". Is there a property or ?? that I need to be checking?
%> <INPUT type="checkbox" name="toProcess"
     value="<%=rs.getString(1)+rs.getString(2)+rs.getString(3)%>"
     <%=getChecked(rs)%>> <%=rs.getString(1)+" "+rs.getString(2)+" "+rs.getString(3)%><br>
<%

This is 2 things, really:
1) Unchecked checkboxes do not have their values sent in the form. You can only check for unchecked-ness of a checkbox by looking for a lack of the value.
2) If multiple fields (any fields) in the form have the same name, then calling request.getParameter() will return the first one in the request (usually the first in the form HTML). If you want all the values, you need to use request.getParameterValues(), which returns a String array, which you can find the values. But if there are 3 fields with the same name and 2 are sent, you get 2 values and there is no way to know which they were. Of course, for checkboxes, you'd have different values, so you could know which were checked and which weren't by their presense or lack thereof in the array.

Similar Messages

JSP Checkbox help! This isn't pretty

Ok, what's the trick to creating a checkbox with a JSP? The help talks about an InputSelectGroup, but it wants to get information out of the database on the values allowed in the checkbox? This can't be. I just want Y or N!!! Can't I just put in Y or N as the select, deslect values somehow?
This shouldn't be this hard.

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Joe Silva:
Ok, what's the trick to creating a checkbox with a JSP? The help talks about an InputSelectGroup, but it wants to get information out of the database on the values allowed in the checkbox? This can't be. I just want Y or N!!! Can't I just put in Y or N as the select, deslect values somehow?
can't you just use an input type in your form and then get the value of the parameter?
<INPUT TYPE=CHECKBOX NAME="gepland" CHECKED>
if you wan't to use it within an editcurrentrecord you can use a static combobox with a Y/N value and the value you required, something like this:
String labels[] = {"Ja","Nee"};
String values[] = {"0","1"};
insertp.useStaticComboBox("PubliceerInd", labels, values);
This shouldn't be this hard.<HR></BLOCKQUOTE>
null

Retrieving checkbox values from JSP

In my program I have an 'ADD' form.
In that form I ask the question "Do you have a car?"
with a single checkbox for reply.
The code I use is below.
Can anyone tell me how to set the checkbox to 'ticked' or 'unticked' in my
main jsp by sending paramters from the ADD form's checkbox??
ADD FORM...
<form action='post' method='servlet/controller?task=addEmployee'>
<input type'text' name='emplpoyee'>
<input type='checkbox' name='car' value='true'>
<input type='submit' name='submit' value='Add'>
</form>
Through a class I retrieve the values posted
public Page doTask() {
Employees employee = new Employees();
employee.setName(request.getParameter("name"));
employee.setCar(Boolean.getBoolean(request.getParameter("car")));
try{
String submit = request.getParameter("submit");
if(submit.equals("Add")){
model.addEmployee(employee);
Page nextPage = new Page("/servlet/Controller?task=GetAllEmployeesTask");
return nextPage;
This class sends the parameters to my main JSP where
this information is inserted. ('employees.jsp')
my name is retrieved so...
<= employees.getName()>
how would I retrieve/set a checkbox value

request.getParameter("car")
the thing is that the browser will not send unchecked checkbox values. so you can only know it was checked by the presense or absense of the value.

How to get value from a checkbox in a jsp page?

hi there
i have a form in a jsp which contains a <input type='checkbox' name='xx'>
when i submit the form, how can i get the value for this checkbox? i could use request object to get parameter. i tried the following and could not get any value:
request.getParameter("xx");
is there any to get it? thanks.

"checkbox" can have multiple values b/c you can check more than 1 checkbox and they can have same name.
Example
<input type="checkbox" name="number" value="1">one
<input type="checkbox" name="number" value="2">two
<input type="checkbox" name="number" value="3">three
To get values of "number" field:
String [] numberValues = request.getParameterValues("number");
where numberValues[0] is the 1st value checked, numberValues[1] is 2nd value checkted and so on.....
If you have no checkbox checked then you might get a "null pointer exception", so make sure you check to see if it's null first before accessing your numberValues array.
If you just have 1 checkbox; then you can just call request.getParameterValue("number") and that will return your value.

Checkbox on a JSP page

hi experts
is there any control for Boolean field in JSP??
how can bind boolean field in JSP page??
waiting for help
Thanks

Surely, someone must have tried to put a checkbox on a JSP page and bind it to data?
All suggestions are welcome.
tnx
-Jan

How to handle dynamically created checkboxes in JSP???

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.
The problem are:
- how to index every checkbox in jsp result line in jsp page in order to avoid solutions like this:
<input type=checkbox" name="value1">
<input type=checkbox" name="value2">
etc
- how to read every checkbox to find the checked ones
Is there anobody who has any experience from case like this?
Please, help me.
Best regards,
Danny

Hi, first off, no need to determine what has been checked or not. If the checkbox is checked, on the post, the value will be submitted as part of the request. If the checkbox is not checked, it will not be submitted (it's value will be null). Depending on what you need, I have approached this a number of different ways. One way is to name all checkboxes the same name. If you need to distinguish between two rows in the form, then in the value field for the checkbox, use some type of distinguishing factor, for example,
<input type=checkbox name=chkName value="1:abc">
<input type=checkbox name=chkName value="1:def">
Now, you only have to make one call on the Servlet/JSP receiving the form post, request.getParameterValues("chkName") which will return an array of the non-null Strings that were checked.

Update checkbox values in jsp page back to OBPM Process

Dear experts,
I am having a small problem with JSP and I was wondering if anyone could shed some light on it.
My situation is as follows, currently I have
<f:invoke var="${orderDetails}" methodName="getIndicatorsY" retAttName="indicator1"/>
<c:forEach var="indicators1" begin="0" items="${indicator1}" varStatus="status">
<tr>
<td width="27">
<input type="checkbox" name="C1" value="I am a checkbox" checked></td>
<<td><font size="2"><c:out value="${indicators1}"/></font></td>
</tr>
</c:forEach>
What this code does is, if uses the fuego talib and invokes a method in bpm which has a database call and returns an array of string.
Thus on the jsp page, when it is loaded, you will see a table which has 2 columns. 1st column is a checkbox, 2nd column is the information in the string array.
My dilemma is like so, when a user unchecks the box, I need to be able to update bpm and subsequently the database to reflect the change from checked to unchecked.
A question, is it possible to return a bpm object from that invoke rather than just a simple string array?
I have yet to find a way to do it. Could be my lack of experience in JSP :( Any help or sample code is greatly appreciated. Thank you!

i think you'll have more chance in this forum :
Java Server Pages (JSP)

Multiple Row selection in JSP using checkbox - Oracle BPM 10gR3

Dear BPM Experts,
Has anyone invoked JSP from Oracle BPM 10gR3 screen flow that has the following UI requirement.
1. When UI is loaded user is presented with multiple rows of pre-populated data(each column of the row represents attributes of a BPM object) with checkbox against each of the rows for user to select one, many and all rows.
2. User has option to select one, many and all rows and submit the form.
3. Upon submission, the all data related to selected rows only should made available to a BPM process(either using Global Creation or Global Interactive activity)
I was able to have the JSP created with FTL tags but unable to transmit the data back to BPM process. Same has been accomplished using BPM Presentation. Can any one please help me with the JSP implementation? It is little urgent, so your early intervention is much solicited and coveted.
I will send you guys the code I have in case you need to review.
Regards,
Subho

Hi friends
I need to do the same feature, select elements, but in a tree object. I've followed the same approach - using a selectBooleanCheckBox in each node of the Tree. But, when I submit the page, the boolean property of my TreeNode object isnt changed.
An Idea?
thanks a lot!

Additional CheckBoxes on JSP Page

Dear All,
I have created 10 Additional CheckBoxes on a JSP Page in Apps through pesonalization by Create Item option and chosen (MessageStylesCheckBox).
The Value of this CheckBox is 1 if it is checked and 0 if it is unchecked. Now I want to track these two values. Are these checkboxes have any
impact on the underlying table or where this information goes? Do I have to put anything inside View Attribute and View Instance?
Please help if anybody knows this.
Regards

Try to check the settings for the section and the column, maybe you have one chance there to hide it. As you can now "freeze" one column and scroll another one that scroll bar is the one of the column (I guess), if you click to display all result the scroll will happen on the "inner" scroll, not the one of page (the one on the right), as far as I remember.
Now sure it's a problem, it's more the normal way to support advanced behavior in a dashboard with multiple columns / sections.

Checking Value passed by Checkbox in a jsp page ??

hi all,
in my jsp page, i've a checkbox on a page & after submitting that page to another one, i want to check whether the checkbox was clicked or not..since in my code i wanna something like this...
if checkbox is clicked
//task1
else
{//task2
Can anyone please help me how to go 'bout it !

Hi ! romit
As the solns suggested above r correcti just wanna add another thing of ur interest ie when the checkbox is checked ,the url contains the thecked checkbox name equals "on"...i hope u understood what i meant...
ie
<input type=checkbox name="checkIt">
now in url...it will be like....
http://localhost/...../..... ..?...&check=on&.....
in case the checkbox is checked...else null value is passed....

Read/set HTML checkbox in JSP

Hello,
I need to directly read and set the state of an HTML checkbox from a JSP page that contains it. It is not sufficient to submit the form and then get the value from the next page; I need to be able to set the value when the page loads, and then on cue, store the (possibly changed) state of the checkbox within the same page.
How can this be done? Thanks in advance.

you write the checkbox tag dynamically...
<input type="checkbox" ... <%= checked ? "checked" : "" %>>
or use a tag library that does it for you.
But you can't do it within the page without Javascript. Once it loads in the browser, the Java part of the page is done and gone. So either you use Javascript to alter things in the browser before submitting the form, or you submit the page and recreate it based on what's submitted so far.

Dynamic checkboxes with jsp

Hi,
I need to create dynamic checkboxes in my jsp page from the values retrived from the database(oracle).help me with the code.My oracle queries are in my Java bean coding.pls its very very urgent.help me out.

hi,
This is my bean coding.can u pls tell me how to store the resultset values in a arraylist.help me out.
package campaign;
//Imports
import java.io.*;
import javax.sql.DataSource;
import javax.naming.*;
import com.ibm.ws.sdo.mediator.jdbc.Create;
import java.sql.*;
* @author n48edf
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
public class AgentDao extends java.lang.Object implements UnsubscribeConstants
protected int indivID = 0;
protected Connection _conn;
protected DataSource ds = null;
protected ResultSet rs = null;
private String driver = null;
//need to code
public void agentLoad(IndvId) throws IOException
String driver = ORACLE_DRIVER;
String dataSource= ORACLE_DATA_SOURCE;
try
//Establish database connection
if (_conn == null)
try
Context context = new InitialContext();
// JDBC JNDI lookup
ds = (DataSource)context.lookup(dataSource);
context.close();
// Get a connection
_conn = ds.getConnection();
catch (Exception exp)
throw exp;
// Create a connection statement
Statement stmt = _conn.createStatement();
rs = stmt.executeQuery("SELECT DISTINCT busn_org_nm "+
"FROM BUSN_ORG bo,AGYLOCINDV_RESP_BUSORG ab "+
"WHERE ab.busn_org_cd=bo.busn_org_cd AND ab.indvid=p_IndvId");
String array[]=rs;
stmt.close();
cleanUp();
catch ( SQLException sqe )
System.out.println ("AgentDao.java - SQL Exception: " + sqe.toString());
sqe.printStackTrace();
catch ( Exception e )
System.out.println ("AgentDao.java - Exception: " + e.toString());
e.printStackTrace();
finally
if(_conn != null|| rs != null)
cleanUp();
public void cleanUp()
try
//close resultset
if (rs != null)
rs.close();
rs = null;
//close connection
if(_conn != null)
_conn.close();
_conn = null;
catch (SQLException sqe)
System.out.println("SQL Exception occurred in cleanUp() of AgentDAO");
sqe.printStackTrace();
catch (Exception e)
System.out.println("Error occurred in cleanUp() of AgentDAO");
e.printStackTrace();
}

Checkboxes in BC4J's JSPs

Maybe it is a basic question...
How can I make a view field (that can be
Y or N) appear as a checkbox in a
JSP page based on BC4J?
Thank you

I found! Using the useStaticCheckBoxGroup
of the EditCurrentRecord class.
The biggest difficulty I have with
JDeveloper is finding out where the
"things" are - they are all spread over
so many classes, wizards, interfaces,
JSPs... The documentation is not very
clear. Can anyone give me a tip on how
have a view of the "big picture"?
(I mean, developing applications using
BC4J).
Thanks
null

Checkboxe and JSP

HI,
I have this problem:
I write the code...
<sql:query var="MarcaSelezionata" scope="session">
SELECT distinct *
From auto_new
WHERE Marca = ?
<sql:param value="${param.marca}"/>
</sql:query>
<c:forEach items="${MarcaSelezionata.rows}" var="row">
<form action="auto_new.jsp" method="get">
<INPUT TYPE="checkbox" NAME="modello" VALUE="<c:out value="${row.Modello}"/>">
<c:out value="${row.Modello}"/>
</c:forEach>
This is ok!!!
But when i submit the form I go in page auto_new.jsp with this code
<sql:query var="AutoTrovate" scope="session">
SELECT *
From auto_new
WHERE Modello = ?
<sql:param value="${param.modello}"/>
</sql:query>
<c:forEach items="${AutoTrovate.rows}" var="row">
<c:out value="${row.Modello}"/>
<c:out value="${row.Colore}"/>
</c:forEach>
This work ok but the query read only one (the first) parameter from checkbox of the previous page and if I check many boxes I lost my data.
Help me please
Thank in advance

I'm not very good yet at the new jsp tags, but if you were in a servlet, for example, you are getting the parameters with request.getParameter("modello") which returns a single String value, whereas you should be getting request.getParameterValues("modello") which returns a String array with all the values with the same parameter name.
Once you have worked out how to get this String array using the new jsp tags, you then do a for:each on it adding " or modello=?" each time to the query String or similar. Or maybe there's a really neat way to do this with the new tags.

Checkbox jsp problem

Hello,
Situation:
I a list of checkboxes with the same name but unique value that a user can check if they did something indicated by the checked item. After they check them and click on submit, it goes to a page that then puts a boolean true in a mysql database for the item they checked to indicate they checked the option. When they return to the page, the page uses mysql to see if each item was previously checked and marks it checked if it was.
Problem: What I want is if the user unchecks it and clicks on submit, the next page will receive an attribute showing that a previously checked box was unchecked so that it can then update the mysql database to change the boolean to false. I am royally confused about how to do this. On the next page I was using:
String[] ticket;
ticket = request.getParameterValues("Ticket");
to receive the checkbox settings. Unfortunately, when you uncheck it, it will not (logically) show up.
I also tried:
I created a java bean with a Vector called ticket
protected Vector ticket = new Vector();
and made:
public void setTicket(Vector v) {
ticket = v;
public Vector getTicket() {
return ticket;
I put the bean in the first page and the second page:
<jsp:useBean id="tkt" scope="session" class="com.bti.ticketBean" />
When I did in the page the form goes:
Vector ticket = tkt.getTicket();
When I checked ticket with ticket.elementAt(1) for example, it was null whether I checked something or not. I think I would have the same problem anyway with unchecked boxes returning no value.
Question:
How can I detect if a user clicks off a checkbox and get that information on the page where the form goes after clicking on submit?
David

One way to do this is to store all of the check box values in a cookie as a series of 0's and 1's. When the used submits the form, a javascript function is called to set the cookie. In the servlet you retrieve the cookie, parse it and set all of the database values based on the cookie.
Here is a sample :
<html>
<head>
<title>Set Load Filters</title>
</head>
<body onLoad="loadForm();" >
<center>
   <form>
       <table>
          <tr>
             <td>
                <table>
                     <tr><th>Open State Filters</th></tr>
                     <tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS1">Creating</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS2">Closed</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS3">Opened</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS4">Reopened</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS5">Cancelled</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="OF" VALUE="LOADOS6">Reclosed</td></tr>
                  </table>
             </td>
             <td style="position:relative;top:0px" >
                <table style="position:relative;top:0px" >
                     <tr><th>Proximity State Filters</th></tr>
                     <tr><td><input INPUT TYPE="checkbox" NAME="PF" VALUE="LOADPS1">Will Be Inbound</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="PF" VALUE="LOADPS2">Inbound</td></tr>
<tr><td><input INPUT TYPE="checkbox" NAME="PF" VALUE="LOADPS3">Sitting</td></tr>
                  </table>
               </td>
            </tr>
       </table>
       <p>
       <input type=button name="Exit" value="Close" onClick="closeWindow();" >
       <input type=button name="Reset" value="Reset" onClick="resetForm();" >
       <input type=button name="Save" value="Set Filter" onClick="processForm();" >
   </form>
</center>
</body>
</html>
<Script language=JavaScript src="/PnSReportXML/javascript/LoadFilters.js">
</Script><P>
In the LoadFilters.js file

<P>

JSP checkbox

Similar Messages

Maybe you are looking for