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JavaScript - Need Help With Getting A Checkbox Array
Hi thier,
I am using PHP to generate a page with a list of checkbox's on it. Then I am using JavaScript to validate that the user has selected at lest 1 of the given box's before I do a post back. But I cannot get my Javascript to see my CheckBox Array. Any help you can offer would be very useful thank you all in advance. Here is my PHP code used to build to Checkbox list. Code: while ($row = mysql_fetch_array($data, MYSQL_ASSOC))
{
if(is_null($row['Team_Number']))
{
$str1 = sprintf('<input type="checkbox" name=\'People\' value="%s">',$row['Member_ID']);
}
else if($row['Team_Number'] == $_REQUEST['T'])
{
str1 = sprintf('<input type="checkbox" name=\'People\' value="%s" checked>',$row['Member_ID']);
}
else
{
$str1 = sprintf('<input type="checkbox" name=\'People\' value="%s">',$row['Member_ID']);
}
$str = sprintf('%s,%s (%s)',$row['First'],$row['Last'],$row['Nick_Name']);
echo('<tr><td width ="10%" align="center">');
echo($str1);
echo('</td><td width="90%" align="Left">');
echo($str);
echo('</td >');
echo('</tr></td>');
}
And here is my Javascript, I've added the whole function incase it's not clear just from a code segment. Code: function TeamSetup()
{
var required = document.form1.BowlersPerTeam.value;
var total = document.form1.People.length;
var Tm = document.form1.TeamName.value;
var cnt = 0;
var peopleIDs = "";
var test = document.getElementsByName('People');
if(isArray(document.form1.People))
{
for(var i=0; i < total; i++)
{
if(document.form1.People[i].checked)
{
if(peopleIDs.length > 0)
{
peopleIDs = peopleIDs +",";
}
peopleIDs = peopleIDs + document.form1.People[i].value.toString();
cnt++;
}
}
}
else
{
if(document.form1.People.checked)
{
cnt=1;
peopleIDs = peopleIDs + document.form1.People.value.toString();
}
}
if(Tm.length > 0)
{
if(cnt == required || cnt > 0)
{
//Hand off to next step for completeing Processing.
var myForm = document.createElement("form");
myForm.action=window.location;
myForm.method="Post";
myForm.appendChild(createformInput("Process","PP"));
myForm.appendChild(createformInput("people",peopleIDs));
myForm.appendChild(createformInput("Team",GetQueryString("T")));
myForm.appendChild(createformInput("League",GetQueryString("L")));
myForm.appendChild(createformInput("TeamName",Tm));
document.body.appendChild(myForm);
myForm.submit();
}
else
{
alert('You need to Select at least 1 player');
}
}
else
{
alert('You need to enter the team name!');
}
}
Similar TutorialsHello I am trying to find a way to use the check all javascript code to select all my checkboxes within a while...loop. Codes goes as follows: within the header on the top of page 1: <SCRIPT LANGUAGE="JavaScript"> function CheckAll(chk) { for (i = 0; i < chk.length; i++) chk[i].checked = true ; } function UnCheckAll(chk) { for (i = 0; i < chk.length; i++) chk[i].checked = false ; } </script> The code that displays the checkboxes, which is a page included onto page 1: echo "<a class='comp' onclick='singleHideandShow({$row['pr_id']})' style='cursorointer'>{$row['propname']}</a><p>"; $propqry = mysql_query("SELECT * FROM users WHERE propid={$row['pr_id']}"); //using the hide and show id number, once clicked it will display the below contents echo "<div id={$row['pr_id']} style='display:none;'>"; while($propf = mysql_fetch_assoc($propqry)) { if($propf['uactive'] == "yes") { $pactive = "active"; } else { $pactive = "deactivated"; } //displays the information from the DB with a checkbox echo "<form name='myform' id='formmsg' method='post' action='profile.php?paction=edit&find=none' >"; echo " <input type='checkbox' name='check_list' value='{$propf['us_id']}'> <a href='profile.php?paction=edit&pid={$propf['us_id']}' /><img src='../images/secure/edit.png' name='Edit' border='0' /></a> <a href='profile.php?paction=delete&pid={$propf['us_id']}' /><img src='../images/secure/delete.png' name='Delete' border='0' /></a><label class='cuser'> {$propf['fname']} {$propf['lname']}, ({$propf['uname']}), {$pactive}</label><br>"; } echo "</form>"; echo '<p><input type="button" name="Check_All" value="Check All" onClick="CheckAll(document.myform.check_list)"> <input type="button" name="Un_CheckAll" value="Uncheck All" onClick="UnCheckAll(document.myform.check_list)"> <p>'; echo "</div>"; I receive the following error message when I click on the Check All button. Message: 'length' is null or not an object Line: 15 Char: 13 Code: 0 URI: http://www.domainname.com/profile.ph...edit&find=none Can anyone help me figure this out? Hello, I've a checkbox validation script to check for at least one ckeck. Code: <script type="text/javascript">
function chkChecks(){
isChecked=false
alert(document.forms["form1"]["checked[]"].length);
for(var i=0;i<document.forms["form1"]["checked[]"].length;i++){
if(document.forms["form1"]["checked[]"][i].checked){
isChecked=true
}
}
if(isChecked){
document.forms["form1"].submit()
}
else{
alert('Please select a checkbox')
}
}
</script>
for the form Code: <form name="form1" action="test.php"> <input type="checkbox" name="checked[]" value="1"> <input type="checkbox" name="checked[]" value="2"> <input type="checkbox" name="checked[]" value="3"> <input class="button_140" type="button" value="Check" onclick="chkChecks()"> </form> It works well for more than one checkboxes, but these are generated dynamically by PHP and if there is only one checkbox, document.forms["form1"]["checked[]"].length returns 'undefined'. Can I modify this to work in all cases? thanks, art. Hi all, I have a form where I want a single checkbox to toggle the selected/unselected status based on the status of that master checkbox. I have a working script that accomplishes this, but I'm having a problem now that I'm submitting the checkbox as an array. Here is the JS : Code: function checkAll()
{
if(document.resultForm.master.checked== true)
{
for(var i=0; i < document.resultForm.choices.length; i++)
{
document.resultForm.choices[i].checked=true;
}
}
else
{
for(var i=0; i < document.resultForm.choices.length; i++)
{
document.resultForm.choices[i].checked=false;
}
}
}
Here is the form that it currently works with : Code: <input type="checkbox" name="master"> <input type="checkbox" name="choices" value="choice 1"> <input type="checkbox" name="choices" value="choice 2"> <input type="checkbox" name="choices" value="choice 3"> <input type="checkbox" name="choices" value="choice 4"> And this is the form that I want it to work with instead : Code: <input type="checkbox" name="master"> <input type="checkbox" name="choices[]" value="choice 1"> <input type="checkbox" name="choices[]" value="choice 2"> <input type="checkbox" name="choices[]" value="choice 3"> <input type="checkbox" name="choices[]" value="choice 4"> Any help would be greatly appreciated! Guys, For some reason my script only works when I have at lease two checkboxes. To simulate the problem just run it once with two html input checkbox elements -> check one checkbox and press submit -> it works -> Now remove one input checkbox field and check the remaining checkbox & submit -> Bamm doesn't work... What am I doing wrong ? Code: <html>
<head>
<script>
function Check(chk)
{
for (i=0; i < chk.length; i++) chk[i].checked=document.ListActionForm.Check_ctr.checked ;
}
function desubmit()
{
if(get_args()==false) {alert("nothing_selected");return false;}
if(labelling(true)) return false;
}
function labelling(s) {return true;}
function get_args()
{
s=chkboxa2str(document.ListActionForm['listaction[]']);
if(s)alert(s);
if(s.length<8)return false;
else return s;
}
function chkboxa2str(chkbox_a) {
var list = "";
for(var i = 0; i < chkbox_a.length; i++){ if(chkbox_a[i].checked) { list += chkbox_a[i].value + " "; } }
return list;
}
</script>
</head>
<body>
<form action="?h=1296078874" method="post" name="ListActionForm" onsubmit="return desubmit()">
<input type='checkbox' name='listaction[]' value='2010102909103530'> Testbox 1<br>
<input type='checkbox' name='listaction[]' value='2010102909103532'> Testbox 2<br>
<input type="Submit" name="Submit" value="Versturen" >
</form>
</body>
</html>
So here's what i want to do: i have 2 checkboxes, when Checkbox A is checked, i want to automatically check the checkbox B. When A is unchecked, then uncheck B how can i do that? thanks a lot ! Hi, If I have two check-boxes and one is already checked and then the is checked, how would I get it to uncheck the first one using JavaScript. Thanks, Cs1h I was trying to get total amount from these all checkbox, when I submit, but I don't know somewhere wrong. Please help me out. Here is my code: <html xmlns = "http://www.w3.org/1999/xhtml"> <head> <title> Form </title> <script language = "JavaScript"> // The event handler functions for the check boxes function appleHandler() { var number = document.orderForm.apples.value; total = total + number * 0.59; } function orangeHandler() { var number = document.orderForm.oranges.value; total = total + number * 0.49; } function bananaHandler() { var number = document.orderForm.bananas.value; total = total + number * 0.39; } // The event handler function to produce the total cost message // when "submit" is clicked function finish() { total = total * 1.05; alert("Thank you for your order \n" + "Your total cost is: $" + total + "\n"); } </script> </head> <body> <h3> Order Form </h3> <form name = "orderForm" onSubmit = "finish()"> <p> <input type = "checkbox" name = "apples" size = "3" onClick = "appleHandler()" /> Apples </p><p> <input type = "checkbox" name = "oranges" size = "3" onClick = "orangeHandler()" /> Oranges </p><p> <input type = "checkbox" name = "bananas" size = "3" onClick = "bananaHandler()" /> Bananas </p><p> <input type = "reset" name = "reset" /> <input type = "submit" name = "submit" /> </p> </form> </body> </html> I am making a google CSE for a client site and I need to concatenate checkbox values together on the end of another form value. So I have a text box and the checkboxes: Code: <input name="q" cid="q" size="25" maxlength="50" value"off road tires"> <input type="checkbox" name="q" id="q" value="cooper|hankook" /> <input type="checkbox" name="q" id="q" value="Mickey Thompson|Bfgoodrich|GBC" /> <input type="checkbox" name="q" id="q" value="Hoosier|Nitto" /> For Google the URL string needs to be like this: Code: results.html?q=off road tires AND inurl:cooper|hankook|Mickey Thompson|Bfgoodrich|GBC this string says the person did not check the last box. I am having a hard time trying to do this. If you guys know a better way to accomplish the same thing I am all ears but I thought I would bring it to the experts and see what they had to say. Thanks for the help! Hi, I have a checkbox and when I "check" I want to add a <p> inside of an <div> and when I "uncheck" I want to remove the <p> from <div>. I've tried this but it's not working Code: $('#checkbox').change(function(){
$('div').html('<p>Some Text</p>');
}, function() {
$('div').remove('<p>Some Text</p>');
});
I hope you can help.. Regards Looking for a simple method to Toggle textbox yes/no using CheckBox This example does not work! But I hope this will help explain what I am trying to do Code: <SCRIPT LANGUAGE="JavaScript">
function YesOrNo() {
if(document.formname.checkboxname.checked)
{
document.formname.textname.disabled='Yes';
}
else
{
document.formname.textname.disabled='No';
}}
</SCRIPT>
<form name="formname">
<input type="text" size="10" name="textname">
<input type="checkbox" onclick="YesOrNo()" name="checkboxname" value="Yes">
</form>
Hi, I want to check all checkboxes using one main checkbox. Then, the checkboxes will be disabled. But then, when the user unchecks the main checkbox, it must revert all the checkboxes to be enabled. How do I do so? Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>TSPL Admin</title>
<script type='text/javascript'>
function checkUncheckAll(checkAllState, chkbxGroup)
{
// Check that the group has more than one element
if(chkbxGroup.length > 0)
{
// Loop through the array
for (i = 0; i < chkbxGroup.length; i++)
{
chkbxGroup[i].checked = checkAllState.checked;
}
document.getElementById("Checkbox7").disabled = true;
document.getElementById("Checkbox8").disabled = true;
document.getElementById("Checkbox9").disabled = true;
document.getElementById("Checkbox10").disabled = true;
document.getElementById("Checkbox11").disabled = true;
document.getElementById("Checkbox12").disabled = true;
document.getElementById("Checkbox13").disabled = true;
document.getElementById("Checkbox14").disabled = true;
}
else
{
// Single element so not an array
chkbxGroup.checked = checkAllState.checked;
}
}
</script>
<style type ="text/css">
.style42
{
border-style: solid;
border-width: 1px;
margin-left: 10px;
width: 135px;
border-color: #8181F7;
text-align: left;
float:left;
}
.style45
{
float: left;
}
</style>
</head>
<body>
<form id="form1" method="post" action="default.aspx">
<br />
<div class="style19">
<tr>
<td align="left">
<div class="style45">
<input id="Checkbox6" name="checkall" onclick="checkUncheckAll(this, grp1);" type="checkbox" />All
</div>
<div class="style42">
<input name="grp1" id="Checkbox7" type="checkbox" />Account Admin<br />
<input name="grp1" id="Checkbox8" type="checkbox" />Network Admin<br />
<input name="grp1" id="Checkbox9" type="checkbox" />Organization Admin<br />
<input name="grp1" id="Checkbox10" type="checkbox" />Super Admin<br />
</div>
<div class="style42">
<input name="grp1" id="Checkbox11" type="checkbox" />Schema Admin<br />
<input name="grp1" id="Checkbox12" type="checkbox" />Troubleshooting Admin<br />
<input name="grp1" id="Checkbox13" type="checkbox" />Helpdesk Admin<br />
<input name="grp1" id="Checkbox14" type="checkbox" />Online Admin<br />
</div>
</td>
</tr>
</div>
</form>
</body>
</html>
Hello all, I usually try and solve my problems by reading all post but i i'm having problem trying to find a solution my problem. I have a simple form in html which presents to the user 2 checkbox's named cash or cheque depending on which answer he gives will present to him 2 different textbox. My problem is i only want the user to be able to select one of the two checkboxes and also i would like the resulting checkbox selected to be placed on the same row. Hope this makes sense!!! I'm only a beginner in javascript and i've found some of the following code on the net but i don't know how to ammend it so that it does what i need it to do. Here is the code: Code: <HTML>
<HEAD>
<TITLE>Document Title</TITLE>
<script>
<!--
function c(){}
function getresultPay(){
if(document["schDetails"]["chkCash"].checked){
document.getElementById("shwCash").style.visibility="visible"
}
else{
document.getElementById("shwCash").style.visibility="hidden"
}
}
function d(){}
function getresultChex(){
if(document["schDetails"]["chkcheque"].checked){
document.getElementById("shwcheque").style.visibility="visible"
}
else{
document.getElementById("shwcheque").style.visibility="hidden"
}
}
//-->
</script>
</HEAD>
<BODY>
<FORM NAME="schDetails">
<table border="1" width="457">
<tr>
<td width="447" align="left" colspan="5" height="12"></td>
</tr>
<tr>
<td width="187" align="left" height="22">Amount to Pay</td>
<td width="26" align="center" height="22">:</td>
<td width="221" height="22" colspan="3">
<input type = text name ="txtPurCode" tabindex= 25 size="20"></td>
</tr>
<tr>
<td width="187" align="left" height="20">How would you like to pay</td>
<td width="26" height="20" align="center"><input type="checkbox" name="chkCash" value="ON" onclick = "c() ; getresultPay()"></td></td>
<td width="66" height="20" align="center">Cash</td>
<td width="35" height="20" align="center"><input type="checkbox" name="chkcheque" value="ON" onclick = "d() ; getresultChex()"></td></td>
<td width="108" height="20" align="center">Cheque</td>
</tr>
<tr id="shwCash" style="visibility:hidden">
<td width="187">Cash to Pay</td>
<td width="26" align="center" height="22">:</td>
<td width="221" colspan="3">
<input type = text name ='txtGRTNo' tabindex = 19 size="20"></td>
</tr>
<tr id="shwcheque" style="visibility:hidden">
<td width="187">Cheque to Pay</td>
<td width="26" align="center" height="22">:</td>
<td width="221" colspan="3">
<input type = text name ='txtGRTNo' tabindex = 19 size="20"></td>
</tr>
<tr>
<td width="447" align="left" colspan="5" height="12"></td>
</tr>
</table>
</FORM>
</BODY>
</HTML>
I would really appricate if someone could solve this for me. Regards Hi all, Can anyone point me in the right direction for some sample code that when the selection on a checkbox changes, either writes or removes some content? In this instance, when the checkbox is unchecked, I want more table rows and columns written with the relevant data within them. Then when checked, I want this data removed. Many thanks I am trying to make a checkbox on the screen so that when I check or uncheck it a word will print on the screen. Unfortunately it is not working. The checkbox shows up but nothing happens when I check/uncheck it. Also, even though that part of the code isn't working everything that comes after it that is suppose to print onto the screen is also not printing. I am assuming it is because there is an error and cannot reach that part of the code. I am used to programming in Java and using eclipse which has a debugger in it and was wondering if there is a nice editor/debugger like eclipse I can use for JavaScript. Thanks. Code: <html>
<title>Welcome :D</title>
<head>
<style type="text/css">
body {
background-color:F0F0F0;
}
</style>
</head>
<body>
CheckBox1 <input type="checkbox" id="tandc" onClick="validate()" />
<script type="text/javascript">
fuction validate(){
if(cb1.onClick){
document.write("Print something");
}else{
document.write("Now print something?");
}
}
document.write("</br></br></br></br>");
document.write("Hello, thank you for visiting my webpage I hope you like it.");
</script>
</body>
</html>
Hi, I have the following codes but my checkbox is not appearing. The values of the checkbox do print out in the alert. Can anyone tell me what is wrong with it? Thank you! Code: var table = document.getElementById('maintable');
var i; // iterator
var item; // pointer to item in received list
for(i = 0;
(item = contacts.ReturnValue.getNext()) != undefined;
++i) {
table.insertRow(i + 1);
var result = "<td>";
if(item.FirstName != undefined) {
result += item.FirstName.Value;
}
result += "</td><td>";
if(item.LastName != undefined) {
result += item.LastName.Value;
}
result += "</td><td>";
if(item.MobilePhoneGen != undefined) {
result += item.MobilePhoneGen.Value;
}
result += "</td><td>";
if(item.EmailGen != undefined) {
result += item.EmailGen.Value;
}
var td1 = document.createElement("td");
var chkbox = document.createElement('input');
chkbox.type='Checkbox';
table.rows[i + 1].innerHTML = result;
chkbox.value=item.MobilePhoneGen.Value;
td1.appendChild(chkbox);
alert(chkbox.value);
}
Hey guys, I am having a bit of an issue here. I have a form which has 3 checkboxes in it: (sorry, ignore the asp) Code: <input name="certs" id="certs" type="checkbox" <% If certs="on" Then Response.Write("checked=""checked""") %> />
<input name="nocerts" id="nocerts" type="checkbox" <% If nocerts="on" Then Response.Write("checked=""checked""") %> />
<input name="certsna" id="certsna" type="checkbox" <% If certsna="on" Then Response.Write("checked=""checked""") %> />
Anyways, I want to enforce the following: - Only one checkbox can be checked from these 3, no more - At least one checkbox must be checked before submission I have found a couple small scripts to validate that at least one is pressed, but I do not know how to make sure no more than one is pressed, and how to combine scripts is beyond me. Can anyone offer any assistance? Is this difficult to do? All, I have the following checkbox code: PHP Code: echo "<input name=\"picbigid[]\" type=\"checkbox\" value=\"$pic[src_big]\">"; I then want to select all the checkboxes so I have this code: [PHP] echo "<input type=\"button\" name=\"CheckAll\" value=\"Check All\" onClick=\"checkAll(document.photos.picbigid)\"> <input type=\"button\" name=\"UnCheckAll\" value=\"Uncheck All\" onClick=\"uncheckAll(document.photos.picbigid)\">"; [PHP] My JS function is: Code: function checkAll(field)
{
for (i = 0; i < field.length; i++)
field[i].checked = true ;
}
function uncheckAll(field)
{
for (i = 0; i < field.length; i++)
field[i].checked = false ;
}
If I do it like this: PHP Code: echo "<input name=\"picbigid\" type=\"checkbox\" value=\"$pic[src_big]\">"; It works but I can't have it like that because the form posts to another PHP page that needs the input name as an array. Any ideas? Thanks! hi can someone help me on my code on javascript sory im a newbie can you check this and help me what i need to do to add all the radio botton and check box. i already finish the add formula on the checkbox but i do not know how to add the two selected radio buttons to my checkbox buttons help please... for example: O selected is 80 O 60 O 60 O selected is 15 O 15 O 25 chkbox 22 chkbox 30 chkbox 8 Code: function Compute(form)
{
if(form.radio1[0].checked)
form.text1.value=form.radio1[0].value; <---- the value of this is 80
else if(form.radio1[1].checked)
form.text1.value=form.radio1[1].value; <---- 60
else if(form.radio1[2].checked)
form.text1.value=form.radio1[2].value; <---- 60
else if(form.radio1[0].checked)
form.text1.value=form.radio1[0].value; <---- 15
else if(form.radio2[1].checked)
form.text1.value=form.radio2[1].value; <---- 15
else if(form.radio2[2].checked)
form.text1.value=form.radio2[2].value; <---- 25
var a=0;
if(form.chk1.checked) <----22
a = a + eval(form.chk1.value);
if(form.chk2.checked) <----30
a = a + eval(form.chk2.value);
if(form.chk3.checked) <----8
a = a + eval(form.chk3.value);
if(form.chk1.checked && form.chk2.checked)
a = eval(form.chk1.value) + eval(form.chk2.value);
if(form.chk1.checked && form.chk3.checked)
a = eval(form.chk1.value) + eval(form.chk3.value);
if(form.chk2.checked && form.chk1.checked)
a = eval(form.chk2.value) + eval(form.chk1.value);
if(form.chk2.checked && form.chk3.checked)
a = eval(form.chk2.value) + eval(form.chk3.value);
if(form.chk3.checked && form.chk1.checked)
a = eval(form.chk3.value) + eval(form.chk1.value);
if(form.chk3.checked && form.chk2.checked)
a = eval(form.chk3.value) + eval(form.chk2.value);
if(form.chk1.checked && form.chk2.checked && form.chk3.checked)
a = eval(form.chk1.value) + eval(form.chk2.value) + eval(form.chk3.value);
form.text1.value=a;
}
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