Ext获取editor, 运用grid.getSelectionModel().getCellEditor方法

1.{...,   
2.    renderer:function(value,metadata,record,rowIndex,colIndex,store){   
3.        var editor = grid.getSelectionModel().getCellEditor(colIndex,rowIndex);   
4.        ...   
5.        return value;   
6.    }   
7.}  

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