Drag the W3Schools image into the rectangle.
Drag and drop is a very common feature. It is when you "grab" an object and drag it to a different location.
In HTML5, drag and drop is part of the standard: Any element can be draggable.
The numbers in the table specify the first browser version that fully supports Drag and Drop.
|Drag and Drop||4.0||9.0||3.5||6.0||12.0|
The example below is a simple drag and drop example:
It might seem complicated, but lets go through all the different parts of a drag and drop event.
First of all: To make an element draggable, set the
draggable attribute to true:
Then, specify what should happen when the element is dragged.
In the example above, the
ondragstart attribute calls a function, drag(event), that specifies what data to be dragged.
dataTransfer.setData() method sets the data type and the value of the dragged data:
In this case, the data type is "text" and the value is the id of the draggable element ("drag1").
ondragover event specifies where the dragged data can be dropped.
By default, data/elements cannot be dropped in other elements. To allow a drop, we must prevent the default handling of the element.
This is done by calling the
event.preventDefault() method for the ondragover event:
When the dragged data is dropped, a drop event occurs.
In the example above, the ondrop attribute calls a function, drop(event):
How to drag (and drop) an image back and forth between two <div> elements: