javascript - extjs 5, deine dropzone on gridpanel, but cannot drop, why? -


i want drag pic , drop gridpanel. definde gridpanel , code below,

viewconfig: {     listeners: {         render: 'onplaylistgridviewrender'     } },  onplaylistgridviewrender: function(component, eopts) {     var gridview = component,         grid = gridview.up('playlistgridpanel');      grid.dropzone = ext.create('ext.dd.dropzone', component.el, {         notifydrop: function(source, e, data){             return true;         }     }); }

i drag pic , when mouse on grid, icon shows dropping forbidden.

what's wrong here? thanks.

both dragged picture , drop target (the grid) must in ddgroup.


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