How to do Javascript validations in JSF

Hi ,
I want to know about the javascript validation in JSF. I want to know simple validations like field should not be empty.
I have a problem with my code can any one suggest me on this. for your reference here i'm attaching my code.
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<f:view>
     <%@ include file="../includes/header.jsp"%>
     <h:form id="createForm">
          <script>
         function validate() {
             if((document.createForm.courseId.value=='') ||(document.createForm.courseId.value==null))
                alert("Please Enter Course Id");
                 return false;
             if(document.createForm.fileName.value=='')
                alert("Please Enter File Name");
                 return false;
               retutrn true;
                     </script>
          <table width="768" height="100%" border="0" cellpadding="0"
               cellspacing="0">
                              <tr>
                                                  <td width="200" height="25" align="left" class="formtext">
                                                       Course Id:
                                                  </td>
                                                  <td height="25" align="left">
                                                       <h:inputText id="courseId" value="#{bean.courseId}" required="true" />
                                                  </td>
                                             </tr>
                                             <tr>
                                                  <td width="200" height="25" align="left" class="formtext">
                                                       File Name:
                                                  </td>
                                                  <td height="25" align="left">
                                                       <h:inputText id="fileName" value="#{bean.fileName}" />
                                                  </td>
                                             </tr>
                                        </table>
                              <tr>
                                   <td colspan="2" align="center" class="formtext">
                                        <h:commandButton value="Create"
                                             action="#{control.getSelectedItems}"
                                             onclick=" return validate();" />
                                   </td>
                              </tr>
                         </table>
                    </td>
                    <td width="12" valign="top" background="images/tile_left_right.jpg">
                         <img src="images/tile_left_right.jpg" width="6" height="1" />
                    </td>
               </tr>
          </table>
     </h:form>
     <%@ include file="../includes/footer.jsp"%>
</f:view>

Have you checked the element ID's? Maybe you have overlooked the woodstocked ID's. Look in the generated HTML source and base your Javascript on this.

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How to implement JavaScript validation in JSF

Dear all,
if i wish to implement JavaScript front end validation function in JSF. what should i do?
thanks.

Hi,
in Core JSF from David Geary there is a chapter on using
Jakarta Commons Validator for javaScript validation
source could be found here:
http://www.horstmann.com/corejsf/
HTH,
Matthias

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if( el.tagName.toLowerCase() != 'select')
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Ummmm, I may be off the beaten path, but by the time your javascript is called the h:selectOneMenu would be a select tag within the dom. You should be able to reference that tag as you normally would.

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Hi everybody, i have done javascript validation in html but i dont know how to validate this jsp page.
<%@ page language="java" contentType="text/html;charset=UTF-8"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-html-1.0" prefix="netui"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-databinding-1.0" prefix="netui-data"%>
<%@taglib uri="http://beehive.apache.org/netui/tags-template-1.0" prefix="netui-template"%>
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<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="75%">
<tr>
<td align="center">
<netui-data:getData resultId="imageFileName" value="${request.phoneAccessoriesForm.imageFileName}"/>
<%
String imageFileName = (String) pageContext.getAttribute("imageFileName");
String img1 = request.getContextPath() + "/framework/skins/uscc/images/" + imageFileName;
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%>
<netui:imageButton src="<%=img1%>" onKeyPress="submit"/>
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</tr>
<tr>
<td align="center">
<%
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%> Select accessorries for your
<netui:label value="${request.phoneAccessoriesForm.phone.modelTitle}"/>
<br>
... or continue to checkout
<netui:imageButton src="<%=img2%>" onKeyPress="submit"/>
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</tr>
<tr>
<td> </td>
</tr>
<tr>
<td bgcolor="#DAECFB">
Calling Plan Selected:
<netui:label value="${request.phoneAccessoriesForm.plan.title}"/>
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</tr>
<tr>
<td> </td>
</tr>
</table>
</netui:form>
</netui:body>
</netui:html>
Can anybody help me

So how i can do thisLet's try this again shall we.
You said you have previously validated HTML with
JavaScript right?
Do the same thing. It works exactly the same. Don't
ask me how when you know how.(..and ask your questions in a java script forum if you have any problems. Java script isn't Java)

How to put javascript validation in the text form ?

Hi,
I would like to validate 1 of the field in the interactive form. where i can put the javascript validation script ?
f.setAction(
"Validate",
u2018AFRange_Validate(true, 0, true, 100)u2019
and also can i force setfocus() in the formal javascript in the interactive forms ? so if the validation not correct the user cannot quit from the field.
Thank You and Best Regards
Fernand Lesmana

Hi
Use the exit event.
You can set focus to the fields as
xfa.host.setFocus(xfa.form.form1.TextField);
Kind Regards
Mukesh

How to use javascript in visual jsf

I have a web project and I am using visual jsf in netbeans. My problem is I cannot with javasciprt.
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If you are trying to display total number of pages in a report, Add the below formula in the column of the report and hide that column in the report.
FX = sum(count(1))/25
You can then reference the column in the narrative view like this: "Total pages in the report are @5" and out put may be "Total Pages in the report are 30".
Or
You can also use something like the below:
To calculate them use fi:
CEILING(CAST(RCOUNT("FactColumn In the Report (Sum All)") as DOUBLE)/ 25) for the page number
CEILING(CAST(COUNT("FactColumn In the Report (Sum All)") as DOUBLE)/ 25) for the total pages
Put the above formula in the column and reference it in the narrative view like I mentioned in the previous example.
If you are report view is pivot, then please refer to this link: http://oraclebizint.wordpress.com/2008/01/17/oracle-bi-101332-pagination-in-pivot-tables/
Hope this helps.
Thanks,
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How to make custom validator in jsf

hi
i am using jsf for web designing in my projects.now we are using java script for JSF validation .but i am interested to do validation using validator tag of JSF.i have tried ,but it is not working.what can i do for this problem.can u give some simple examples with clear explanations.
My validator class file is
package com.obs.ftw.util.validation;
public class isEmpty implements Validator{
     public isEmpty(){}
     public void validate(FacesContext context, UIComponent uiComponent,Object value) throws ValidatorException{
          System.out.println("Inside the validate");
FacesContext context=new FacesContext();
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               message.setSeverity(FacesMessage.SEVERITY_ERROR);
               message.setSummary("First Name is Empty");
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faces-config is
<validator>
          <validator-id>isEmpty</validator-id>
          <validator-class>com.obs.ftw.util.validation.isEmpty</validator-class>
     </validator>
jsf page is
<h:message for="T5"></h:message>
<h:inputText value=#{mybean.lcFirstname} id="T5" required="true">
<f:validator validatorId="isEmpty"/>
</h:inputText>
this function calls isEmpty constructor.but system.out.println("Hi") isn't called which is defined inside the validate()
fuction.
any problem in this isEmpty function?any one give me a solution with an example
advance thanks
with regards
oasisdeserts

Thanks for reply.i was expecting this one and it is working fine .but i want to validate null or empty string using
validator tag.Is any other way to do this .There is no standard way to do this. You may consider to write your own implementation of the JSF LifeCycle.
can u give some explanation to create messagebundle Check chapter 2.5.2.4 of the JSF specification: [http://jcp.org/aboutJava/communityprocess/final/jsr252/index.html]
whether it will be useful to validate empty string?The default behaviour is:
The 'required' attribute already validates the empty value. If the value is empty and the 'required' attribute is set to true, then the "field is required" message will show up (text may depend on the message settings and configuration -- in JSF 1.2 you can use the 'requiredMessage' attribute to specify that message right in the JSF page). If the value is not empty, then the attached validator will be fired, regardless of the setting of the 'required' attribute. If the value is empty and the 'required' attribute is false or not set, then no validation will be taken place.jsf

How to avoid page validation in JSF / ADF

In my form I have "cancel" button ( type="reset" ). But when I press it, validation started. But I don't need validation when this button pressed.
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You should set the immediate="true" attribute.
Regards,
Kati

How to use javascript for jsf containg t:htmlTags instead of panel grids

Hi,
i tried out validation in the following manner:
function valid(form){
alert(" 1:Entered valid function ");
var varCritical1=document.form["form:critical1"].checked;
var varHigh1=document.form["form:high1"].checked;
if (varHigh1&&varCritical1){
alert("Select only one option");
document.form["form:critical1"].focus();
document.form["form:high1"].focus();
return false;
return true;
====== the jsf code for the above is:
<t:htmlTag value="td" style="border: 1px solid;">
<h:commandButton id="commit" value="Commit all Changes" action="commit" styleClass="submit-button"
onClick="return valid(this.form)" />
</t:htmlTag>
======
could anyone suggest me how to do this validation..
faster reply is appreciated
-Thanks,
Soumya Desu

When writing JS and you're new to JSF (so new that you don't know out of head which HTML a JSF component generate), you need to base the JS code on the generated HTML output, not on the JSF source code.
For problems and/or support with writing JS code, please consult a JS forum. There are ones at webdeveloper.com and dynamicdrive.com. Please keep in mind that JSF source code is completely irrelevant for the JS forum users (and actually also for you), concentrate on and share the generated HTML output.

Validation in JSF using alert boxex with javascript

Hi,
I want to validate the input of the user as client-side validation, without returning to the server..
So, if for example he doesn't fill in a field, an alert box should be displayed : " No valid input !!"
Can soemone help me..
Thanks

<h:selectOneRadio id="myradio" required="true" ... >
</h:selectOneRadio>
<h:message for="myradio" />Submit the form, if the radio is not selected while the 'required' attribute is set to true, you will get a default validation error in the h:message.
Get through a good JSF book/tutorial and read on about the validation. JSF offers a robust and highly customizeable validation framework. The error messages are also customizeable. The only difference with the Javascript approach is that it costs one trip to the server as well. But the big advantage is that it is much more robust. As Javascript is clientside, it can easily be disabled by the client or even hacked by the client.
Here are some useful links:
JSF book: http://www.amazon.com/JavaServer-Faces-Complete-Reference/dp/0072262400
JSF specification: http://jcp.org/aboutJava/communityprocess/final/jsr252/index.html
JSF tutorial (Java EE tut chapter 10 and on): http://java.sun.com/javaee/5/docs/tutorial/doc/bnaph.html

JavaScript problem with JSF

Hi All,
Hi All,
Studio Creator has generated this code
<h:form binding="#{general$forgotpassword0.form1}" id="form1">
<h:inputText binding="#{general$forgotpassword0.txtLogin}" id="txtLogin" styleClass="frmObjects" />
<h:commandButton action="#{general$forgotpassword0.btnSubmit_action}" binding="#{general$forgotpassword0.btnSubmit}"
id="btnSubmit" onclick="alert('hello'); return checkLogin();" styleClass="frmObjects1" title="btnSubmit" value="Continue"/>
</h:form>
now after compilation, I get form1:txtLogin for txtLogin
Now how can I perform client side JavaScript Validation on form1:txtLogin??
Thanks
Sudhakar

The Id 'form1:txtLogin' is valid in SUN RI implementation but with myfaces, the ID can be different (the id generation depends on the implemented algorythm).
I use the j4j.jar containing the component 'proxytag' to get the client Id generated by JSF engine. See http://www.jsftutorials.net/proxyTag.html
Afterwards, you can manipulate the component via javascript by using document.getElementbyId("");

How to use JavaScript in Web bean generated JSP

I want to do some simple JavaScript validations (for example, checking if a particular field is empty) in the JSP page rendered by the data web bean. Because the HTML is rendered by the bean, I'm not able to refer to the HTML controls in the JSP page. I'm not even able to refer to the form with the following standard piece of JavaScript code - "document.forms[0].control_name".
Is anybody aware of how to use JavaScript with these rendered JSP pages?

You just have to add it like and applet , including this line in your JSP or JSF
<script src="http://dl.javafx.com/dtfx.js"></script>Then add the applet
<script>
    javafx(
              archive: "./resources/jar/Draw.jar",
              width: 400,
              height: 200,
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Hello,
This is mohan, I am newly for jsf. can you please anyone tell me, how to clinet side validate in jsf?
thanks Mohan

Use JavaScript.
JSF does not do client side validation. It is only a server-side technology.
CowKing

JavaScript validation/override red borders?

We are creating numerous forms in LiveCycle and are very averse to having to specify "User Entered - Required" for two main reasons:
doing so places those ugly, red boarders around required fields
most fields on most forms are required, we don't want to clutter our forms with red borders
The problem we encounter is that users can submit empty forms/null values via email, and I yet to find a way around this. Incomplete forms/data, particularly on things like requisitions and the like, can lead to delays in processing. We want to mitigate that by forcing client-side validation before users submit their forms via email.
I am very new to both LiveCycle and JavaScript.
I have tried
fieldname.mandatory = "This cannot be left blank.";
tied to the validate event, but this does not seem to do anything: users can still submit forms, even if the value is null/empty.
Where this would most be used is with text and numeric fields and, occasionally, with radio buttons/exclusion groups.
Can someone please help me figure out simple client-side JavaScript validation (or other method) that would force users to enter values in these mandatory fields before submitting, preferably without having to subject our users to the hideous borders?

Thank you; a blog post I found contained the answer I was looking for. Essentially:
Now you see me, now you don’t.
Interactive forms highlight where you should enter data. To turn this highlighting on, click the Highlight Existing Fields button.
The fillable fields within the form (see example below) are highlighted in a light blue color. This lets you enter information into these fields. By default, Adobe® Reader® displays a red border around required fields. Pretty dang ugly, huh?
Fortunately, it can be turned off. This script (placed on a form:ready event) will do the trick:
    if (xfa.host.name == "Acrobat")
app.runtimeHighlight = false;
Here’s how we achieve this:
Part 1:
In the Object palette, click the Value tab. Under Type, choose User Entered – Required.
First, we need to define which fields are mandantory/required. Click within the desired field to select it.
You can assign as many mandatory fields as the form requires. When you are finished doing this, enter the Script Editor.
          Note:   To show or hide the Script Editor window as you need it, click the toggle.
Select the form:ready event. Be sure JavaScript is the chosen scripting language to run on the Client.
Type the following script into the window:
    if (xfa.host.name == "Acrobat")       app.runtimeHighlight = false;
Save your work.
Part 2:
From the File menu, choose Form Properties.
Click the Form Validation tab.
               Click Color Failed Fields.               Check the box next to Color fields and fail their validations.
To turn borders off, click the arrow next to Border Color, then click the box.
To define a background color, click the arrow next to Background Color, the choose More Colors.
Select the first available empty box, then click Define Custom Colors.
Define a custom color per your visual identity guidelines.
When you are finished, click on Add to Custom Colors, then click OK.
Click OK on the Form Properties window.
Save your work.
The result? When the user tries to submit a form without first entering data into the required fields, an alert message is displayed.
When the user clicks OK to clear the error message, form submission is cancelled.
Failed fields are highlighted in an attractive way—without red borders.

How to add a validator to a custom tag

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I would like to know how to add a validator to my custom tag as an attribute.
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Sebastien

Are you wanting to use one of the JSF validators or a home brewed one?

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