onListBeforeDragIn
fires before a dragged element is moved over the droppable list
boolean onListBeforeDragIn(object context,Event ev,object list){ ... };
Parameters
| context | object | drag-n-drop context object with a set of properties (see details) |
| ev | Event | a native event object |
| list | object | the list object where the event has happened |
Returns
| boolean | returning false will prevent dropping of the element |
Example
$$("myBoard").attachEvent("onListBeforeDragIn", function(context,ev,list){
if(...){
return false;
}
return true;
});
Related samples
Details
The properties of the context object are:
- from - the source object
- to - the target object
- source - the ID of the dragged item(s)
- target - the ID of the drop target, null for drop on an empty space
- start - the ID from which drag-n-drop started
- index - the index of the item in the column
- x_offset - the left offset between the pointer and the dragged list
- y_offset - the top offset between the pointer and the dragged list
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