问Extjs -拖放限制

EN

abc.prototype.initDrag = function(v) {
    v.dragZoneobj = new Ext.dd.DragZone(v.getEl(), {
                getDragData : function(e) {
                    var sourceEl = e.getTarget(v.itemSelector, 10);
//                    sourceEl.setXConstraint( 0, 10 );
                    var t = e.getTarget();
                    var rowIndex = abc.grid.getView().findRowIndex(t);
                    var columnIndex = abc.grid.getView().findCellIndex(t);
                    if ((rowIndex !== false) && (columnIndex !== false)) {
                        if (sourceEl) {
                            abc.isDragged = true;
                            abc.scriptGrid.isDraggableForObject = false;
                            abc.scriptGrid.dragRowIndex = false;
                            d = sourceEl.cloneNode(true);
                            d.id = Ext.id();
                            d.textContent = sourceEl.innerHTML;
//                            d.setXConstraint( 0, 10 );
//                            d.setYConstraint( 0, 10 );
                            return {
                                ddel : d,
                                sourceEl : d,
                                sourceStore : v.store
                            }
                        }
                    }   
                },
                getRepairXY : function() {
                    return this.dragData.repairXY;
                },          
            });
}