Radio button clears text fields
I have two radio buttons: press the first radio button and three text boxes will appear if they start typing information and then change their mind and select the second radio button which does not clear the entered text. So I'm trying to figure out if there is a way to clear the text from these text boxes when a new radio button (same group) is selected. Any help is greatly appreciated!
<input
type="radio"
value="Yes"
name="lien"
id="lien"
onchange="showhideForm(this.value);"/><label for="lien">Lien</label>
<input
type="radio"
value="None"
name="lien"
id="nolien"
onchange="showhideForm(this.value);"/><label for="nolien">No Lien</label>
<div id="div1" style="display:none">
<div class="clearfix">
<p>
<label for="lname">Lienholder Name:</label>
<input
type="text"
name="lienlname"
id="lienlname">
</p>
<p>
<label for="laddress">Lienholder Address:</label>
<input
type="text"
name="lienladdress"
id="lienladdress">
</p>
<p>
<label for="ldate">Date of Lien:</label>
<input
type="text"
name="lienldate"
id="datepicker2">
</p>
</div>
</div>
<div id="div2" style="display:none">
<!---You are not qualified to see this form.--->
</div>
<br>
<script type="text/javascript">
function showhideForm(lien) {
if (lien == "Yes") {
document.getElementById("div1").style.display = 'block';
document.getElementById("div2").style.display = 'none';
}
else if (lien == "None") {
document.getElementById("div2").style.display = 'block';
document.getElementById("div1").style.display = 'none';
}
}
</script>
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2 answers
You can always use this when checking another one radio
:
$("#div1 .clearfix input:text").val("");
function showhideForm(lien) {
if (lien == "Yes") {
document.getElementById("div1").style.display = 'block';
document.getElementById("div2").style.display = 'none';
}
else if (lien == "None") {
document.getElementById("div2").style.display = 'block';
document.getElementById("div1").style.display = 'none';
$("#div1 .clearfix input:text").val("");//here use to clear inputs
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="radio" value="Yes" name="lien" id="lien" onchange="showhideForm(this.value);"/><label for="lien">Lien</label>
<input type="radio" value="None" name="lien" id="nolien" onchange="showhideForm(this.value);"/><label for="nolien">No Lien</label>
<div id="div1" style="display:none">
<div class="clearfix">
<p>
<label for="lname">Lienholder Name:</label>
<input type="text" name="lienlname" id="lienlname">
</p>
<p>
<label for="laddress">Lienholder Address:</label>
<input type="text" name="lienladdress" id="lienladdress">
</p>
<p>
<label for="ldate">Date of Lien:</label>
<input type="text" name="lienldate" id="datepicker2">
</p>
</div>
</div>
<div id="div2" style="display:none">
<!---You are not qualified to see this form.--->
</div>
Comments (hate) (kidding) js approach:
function showhideForm(lien) {
if (lien == "Yes") {
document.getElementById("div1").style.display = 'block';
document.getElementById("div2").style.display = 'none';
} else if (lien == "None") {
document.getElementById("div2").style.display = 'block';
document.getElementById("div1").style.display = 'none';
//js
container = document.getElementById('div1');
inputs = container.getElementsByTagName('input');
for (index = 0; index < inputs.length; ++index) {
inputs[index].value = "";
}
}
}
<input type="radio" value="Yes" name="lien" id="lien" onchange="showhideForm(this.value);" />
<label for="lien">Lien</label>
<input type="radio" value="None" name="lien" id="nolien" onchange="showhideForm(this.value);" />
<label for="nolien">No Lien</label>
<div id="div1" style="display:none">
<div class="clearfix">
<p>
<label for="lname">Lienholder Name:</label>
<input type="text" name="lienlname" id="lienlname">
</p>
<p>
<label for="laddress">Lienholder Address:</label>
<input type="text" name="lienladdress" id="lienladdress">
</p>
<p>
<label for="ldate">Date of Lien:</label>
<input type="text" name="lienldate" id="datepicker2">
</p>
</div>
</div>
<div id="div2" style="display:none">
<!---You are not qualified to see this form.--->
</div>
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One approach, staying with plain JavaScript from your question / JS Fiddle demo:
function showhideForm(lien) {
if (lien == "Yes") {
document.getElementById("div1").style.display = 'block';
document.getElementById("div2").style.display = 'none';
} else if (lien == "None") {
document.getElementById("div2").style.display = 'block';
document.getElementById("div1").style.display = 'none';
// getting all the input elements within '#div1' (using a CSS selector):
var inputs = document.querySelectorAll('#div1 input');
// iterating over those elements, using Array.prototype.forEach,
// and setting the value to '' (clearing them):
[].forEach.call(inputs, function (input) {
input.value = '';
});
}
}
A slightly more concise view above (or, if not more concise, with less repetition):
function showhideForm(lien) {
var isYes = lien.trim().toLowerCase() === 'yes',
div1 = document.getElementById('div1'),
div2 = document.getElementById('div2');
div1.style.display = isYes ? 'block' : 'none';
div2.style.display = isYes ? 'none' : 'block';
if (!isYes) {
[].forEach.call(div1.getElementsByTagName('input'), function (input) {
input.value = '';
});
}
}
And finally, a version that removes the intrusive JavaScript inline event handling ( onclick
, onchange
etc.):
function showhideForm() {
// 'this' in the function is the radio-element to which
// the function is bound as an event-handler:
var isYes = this.value.trim().toLowerCase() === 'yes',
div1 = document.getElementById('div1'),
div2 = document.getElementById('div2');
div1.style.display = isYes ? 'block' : 'none';
div2.style.display = isYes ? 'none' : 'block';
if (!isYes) {
[].forEach.call(div1.getElementsByTagName('input'), function (input) {
input.value = '';
});
}
}
// finding the elements with the name of 'lien':
var lienRadios = document.getElementsByName('lien');
// iterating over those elements, using forEach (again):
[].forEach.call(lienRadios, function (lien) {
// adding a listener for the 'change' event, when it
// occurs the showhideForm function is called:
lien.addEventListener('change', showhideForm);
});
Literature:
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