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HTML ondragstart Event Attribute
The HTML ondragstart event attribute is triggered when the user begin to drag an HTML element or text of an element in an HTML document.
Syntax
Following is the syntax −
<tagname ondragstart=”script”></tagname>
Let us see an example of HTML ondragstart event Attribute−
Example
<!DOCTYPE html>
<html>
<head>
<style>
body {
color: #000;
height: 100vh;
background-color: #FBAB7E;
background-image: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%);
text-align: center;
}
.drop-target {
display: inline-block;
width: 150px;
height: 150px;
border: 2px solid #FFF;
margin: 1rem;
vertical-align: middle;
padding: 20px;
}
.circle {
background: #db133a;
height: 40px;
width: 40px;
border-radius: 50%;
}
.show {
color: #fff;
font-size: 1.2rem;
}
</style>
</head>
<body>
<h1>HTML ondragstart Event Attribute Demo</h1>
<div class="drop-target" ondrop="drop(event)" ondragover="allowDrop(event)">
<p ondragstart="dragStart(event)" ondragend="dragFinished(event)" draggable="true" class="circle"></p>
</div>
<div class="drop-target" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<p>Now try to drag and drop the red circle</p>
<div class="show"></div>
<script>
function dragStart(event) {
event.dataTransfer.setData("Text", event.target.id);
document.querySelector(".show").innerHTML = "Started to drag the red circle.";
}
function dragFinished(event) {
document.querySelector(".show").innerHTML = "Finished dragging the red circle.";
}
function allowDrop(event) {
event.preventDefault();
}
function drop(event) {
event.preventDefault();
event.target.appendChild(document.querySelector('.circle'));
}
</script>
</body>
</html>Output
Now try to drag and drop the red circle between the two boxes to observe how ondragstart event attribute works−
Updated on: 27-Sep-2019
42 Views
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