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onBeforeDragIn

fires before an item is dragged to another potential target

boolean onBeforeDragIn(object context,Event object ev){ ... };

Parameters

contextobjectcontext object
evEvent objectnative event object

Returns

booleantrue - to trigger the default action, false - to block it

Example

myDataView.attachEvent("onBeforeDragIn", function (context, ev){
    // your code here
    return true;
});

Details
  • context.start - ID of an item, from which the dragging process was started
  • context.source - an array of dragged IDs (drag source)
  • context.target - ID of the target item (drop target)
  • context.from - a view object to which the dragged item belongs
  • context.to - a view object to which the drop target belongs
  • context.index - an index in the target view at which new item will be added

The event is blockable, returning false will block the default action.

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