How to validate checkbox???

119 64KB

Hi,

I have a registration form. I want to validate this form in php using javascript.

Here is my code of registration form :

Expand|Select|Wrap|Line Numbers

 
<html>

<head>
 
<script type="text/javascript" language="javascript">

function validate(frm)

{

    with(frm)

    {

        if(username.value=="")

        {

            alert("Please Enter Username!");

            username.focus();

            return false;

        }

        if(password.value=="")

        {

            alert("Please Enter Password!");

            password.focus();

            return false;

        }

        if(address.value=="")

        {

            alert("Please Enter Address!");

            address.focus();

            return false;

        }

        if(course.value=="" || course.value=="0")

        {

            alert("Please Select Course!");

            course.focus();

            return false;

        }

        if(hobby.value=="" || hobby.value=="0")

        {

            alert("Please Select Hobby!");

            hobby.focus();

            return false;

        }

        if(photo.value=="")

        {

            alert("Please Select Profile Picture!");

            photo.focus();

            return false;

        }

        if(gender.value=="")

        {

            alert("Please Select Gender!");

            //gender.focus();

            return false;

        }

        if(x.value=="" && y.value=="" && z.value=="" && p.value=="" && q.value=="")

        {

            alert("Please Select Skill!");

            //x.focus();

            return false;

        }

        return true;

    }

}

</script>

</head>
 
<body>

<form method="post" enctype="multipart/form-data" name="frmRegistration">

<table>
 
<tr>

<td>Enter the Username :-</td>

<td>

<input type="textbox" id="txtUN" name="username">

</td>

<tr>
 
<tr>

<td>Enter the Password :-</td>

<td>

<input type="password" id="txtPassword" name="password">

</td>

</tr>
 
<tr>

<td>Enter the Address :-</td>

<td>

<textarea id="txtPassword" name="address" rows="5" columns="10"></textarea>

</td>

</tr>
 
<tr>

<td>Course :-</td>

<td>

<select name="course" id="course">

<option value="0">Select Course</option>

<option value="B.Sc.IT">B.Sc.IT</option>

<option value="BCA">BCA</option>

<option value="B.Com">B.Com</option>

<option value="BBA">BBA</option>

<option value="M.Sc.IT">M.Sc.IT</option>

<option value="MCA">MCA</option>

<option value="M.Com">M.Com</option>

<option value="MBA">MBA</option>

</select>

</td>

</tr>
 
<tr>

<td>Hobby :-</td>

<td>

<select name="hobby" id="hobby" multiple="multiple">

<option value="0" selected>Please Select</option>

<option value="Reading">Reading</option>

<option value="Writing">Writing</option>

<option value="Collecting Different Things">Collecting Different Things</option>

<option value="Travelling">Travelling</option>

<option value="Walking">Walking</option>

<option value="Playing">Playing</option>

<option value="Cooking">Cooking</option>

<option value="Music">Music</option>

<option value="Other">Other</option>

</select>

</td>

</tr>
 
<tr>

<td>Profile Picture :-</td>

<td>

<input type="file" name="photo"/>

</td>

</tr>
 
<tr>

<td>Gender :-</td>

<td>

<input type="radio" name="gender" value="Male">Male

<input type="radio" name="gender" value="Female">Female

</td>

</tr>
 
<tr>

<td>Skills :-</td>

<td>

<input type="checkbox" name="x" value="php">PHP

<input type="checkbox" name="y" value="rdbms">RDBMS

<input type="checkbox" name="z" value="java">Java

<input type="checkbox" name="p" value="asp">ASP.NET

<input type="checkbox" name="q" value="dcn">DCN

</td>

</tr>
 
<tr>

<td colspan="2">

<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

<input type="submit" name="submit" value="Submit" onclick="javascript:return validate(document.frmRegistration);">

<input type="reset" name="clear" value="Reset">

<br><br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

<input type="submit" name="view" value="  View Records  ">

</td>

</tr>
 
</table>

</form>

</body>

</html>

There is no such type of physical error in this code.

When I Submit my form without entering any values, It displays proper messages for Username, Password, Address, Course, Hobby, ProfilePic, and gender.

But it doesn't display the message for checkboxes.

What should I do?????

Please help

Dec 29 '15 #1

Subscribe Post Reply

2028

Dormilich

8,658

Expert Mod 8TB

I want to validate this form in php using javascript.

you can validate it on the server using PHP or in the browser using JavaScript.

But it doesn't display the message for checkboxes.

that’s because checkboxes (and radio buttons) never change their value. they only change their checked state.

Dec 30 '15 #2

Ajay Bhalala

119

64KB

Hello dormilich,
Thank you for your reply.

In short, I want that the user must have to select at-least one checkbox.

If user does not select any one checkbox, then I want to give the message 'Please Select Skill'.

And I want to do this using Javascript

How can this be done?????

Dec 30 '15 #3

Dormilich

8,658

Expert Mod 8TB

How can this be done?????

as I have previously said, by checking the checkboxes’ checked state.

Dec 30 '15 #4

Ajay Bhalala

119

64KB

Hi,

Thanks for your reply.

Its work. Thanks you for your help.

Jan 4 '16 #5

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