to change feild colour on validation(unfi lled feilds change to red).

10 New Member

hello

i am using struts 1.2,Eclipse Platform Version: 3.4.2,mySql 5.0.1,jdk 1.5..

i have a login form(jsp) in which a user logs in,in case he doesnt enter his username and/or password an error is displayed using the <ul> tag and <html:errors> in the jsp. in the from class a vaidate method creates an actionerrors object adds all the errors to it and finally returns it.
the ids are linked in messageresource s.properties and appropriate message is diaplayed.
now i want to change the colour of the feild thats unfilled.. ie the username change its font to red in case it empty rather then a message.

thanks in advance.

code:

index.jsp

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 <%@ taglib uri="/WEB-INF/tlds/struts-html.tld" prefix="html"%>

<%@ taglib uri="/WEB-INF/tlds/struts-bean.tld" prefix="bean"%>

<%@ taglib uri="/WEB-INF/tlds/struts-logic.tld" prefix="logic"%>
 
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

    pageEncoding="ISO-8859-1"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 
<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

<meta http-equiv="Pragma" content="no-cache">

<meta http-equiv="Cache-Control" content="no-cache">
 
<title>Welcome Page</title>

<link href="example.css" rel="stylesheet" type="text/css" />

</head>

<body background="nexus.jpg">

<div id="top">

<table border="0">

    <tr>

        <td width="250"><img src="car.jpg" /></td>

        <td width="250">

        <img src="title.jpg" />

        </td>

        <td width="250">

        <h2 align="right">

        <logic:notPresent name="loginForm"    property="result" scope="session">

        Welcome Please Sign In<br>

        </logic:notPresent> 
 
        <logic:present name="loginForm" property="result" scope="session">

        welcome <bean:write name="loginForm" property="uid" />!!

        <html:link action="/logout">LogOut</html:link>

            <html:link action="/viewinfo">Account Info</html:link>

        </logic:present></h2>

        </td>

    </tr>

</table>

<hr width="100%">

</div>
 
<div id="leftnavigation">

<h3>FEW LINKS</h3>

<a href="newcar.jsp">New Car</a><br>

<a href="oldcar.jsp">Old Car</a><br>

<a href="Search.jsp">Search</a></div>
 
<div id="content">

<h1>Welcome to the car portal</h1>

<p>This is the place where you can check out all the latest cars. <br>

Not only this,you can also add your old cars for sale.<br>

With our huge member base we are sure to get you a deal you cannot refuse. <br>

<u>Register today to see the available cars at most affordable prices</u>.</p>
 
<h2>New Launches</h2>

<img src="car1.jpg" /></div>
 
<div id="rightnavigation">

<html:errors /> 

<html:form action="/login">
 
    <logic:present name="loginForm" property="flag" scope="session">

    <font size="2" color="red">UserID/Password Does not exist.<br> New Users please register</font>

    </logic:present>
 
    <logic:notPresent name="loginForm" property="result" scope="session">
 
        <h2>LOGIN HERE!!</h2>

        <p>Enter your user id and password to log in</p>

    USER NAME<font size="-1" color="red">*</font> <html:text property="uid" />

        <br>

    PASSWORD<font size="-1" color="red">*</font>  <html:password property="psswd" />

        <br>

        <html:submit value="LOG IN" />

        <br>

        <br>
 
        <html:link forward="nregister">Register Here!!</html:link>
 
    </logic:notPresent>
 
</html:form>

</div>

</body>

</html>

LoginForm.java

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 package form;
 
import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessage;
 
public class LoginForm extends ActionForm

{
 
     String Uid;

     String Psswd;

     String result;

     String flag;
 
    public String getFlag() {

        return flag;

    }

    public void setFlag(String flag) {

        this.flag = flag;

    }
 
    public String getResult() {

            return result;

        }

        public void setResult(String result) {

            this.result = result;

        }
 
    public String getUid() {

        return Uid;

    }

    public void setUid(String uid) {

        Uid = uid;

    }

    public String getPsswd() {

        return Psswd;

    }

    public void setPsswd(String psswd) {

        Psswd = psswd;

    }
 
    public ActionErrors validate(ActionMapping mapping,HttpServletRequest request)

    {

        ActionErrors actionErrors= new ActionErrors();
 
        if(getUid()=="")

        {

            actionErrors.add("Username",new ActionMessage("uid.required"));

        }
 
        if(getPsswd()=="")

        {

            actionErrors.add("Password",new ActionMessage("psswd.required"));

        }
 
        return actionErrors;

    } 
 
 public String test(String result)

 {    String act;

     if((getUid()=="") || (getPsswd()==""))

        {

         act=null;

        }

        else

        {

        act="true";

        }

     return act;}

}

MessageResource s.properties

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 # -- Standard errors --

errors.header=<UL>

errors.prefix=<LI><B><FONT COLOR="RED">

errors.suffix=</FONT></B></LI>

errors.footer=</UL>
 
# -- Custom validation messages --
 
uid.required=Username Required.

uid.short=Username is too short.

psswd.required=Password Required.

psswd.short=Password is too short.

rpsswd.required=Re Enter the password same as password.

fname.required=First Name Required.

lname.required=Last Name Required.

email.required=Email Address Required.

email.invalid=Invalid Email Address.

email.incorrect=Incorrect Format for an Email Id.

value.match=Username and password are same.

value.notmatch=Password and retyped password don't match.

digit.incorrect=Zip,Contact no and Date of birth must have only digits.

Aug 17 '09 #1

Subscribe Reply

4520

r035198x

13,262

MVP

So you have a CSS problem rather than a Java problem. Basically you want to change the font-color property based on whether the HTML control is filled or not after a failed submit.

Aug 17 '09 #2

gavy7210

New Member

yes but through struts..
using the action errors tag..
i want to use the property of a bean to update the colour..
something like that..
to chnge colour isnt priority using struts to do it is

Aug 17 '09 #3

r035198x

13,262

MVP

So use simple if-else logic to set the style or have two labels with different font and use simple if-else logic to decide which one to display.

Aug 18 '09 #4

gavy7210

New Member

taking a que from what u said n using struts i solved the problem as below..

<logic:messages Present>
held the form when errors were there(and the feilds wre red) and a copy was kept in messagesNotPres ent tag.. normal feild display..

thanks r035198x

Aug 19 '09 #5

gavy7210

New Member

how do i close this thread!!

Aug 19 '09 #6

JosAH

11,448

Recognized Expert MVP

@gavy7210
You can't, only moderators can do that; I'll close it for you.

kind regards,

Jos

Aug 19 '09 #7

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