question: private void fillPicks ( ) throws Exception { MLookup orgL = MLookupFactory . get ( Env . getCtx ( ) , m_WindowNo , 0 , 2223 , DisplayType . TableDir ) ; fWarehouse = new VLookup ( "M_Warehouse_ID" , true , false , true , orgL ) ; lWarehouse . setText ( Msg . translate ( Env . getCtx ( ) , "M_Warehouse_ID" ) ) ; fWarehouse . addVetoableChangeListener ( this ) ; m_M_Warehouse_ID = fWarehouse . getValue ( ) ; MLookup bpL = MLookupFactory . get ( Env . getCtx ( ) , m_WindowNo , 0 , 2762 , DisplayType . Search ) ; fBPartner = new VLookup ( "C_BPartner_ID" , false , false , true , bpL ) ; lBPartner . setText ( Msg . translate ( Env . getCtx ( ) , "C_BPartner_ID" ) ) ; fBPartner . addVetoableChangeListener ( this ) ; lDocType . setText ( Msg . translate ( Env . getCtx ( ) , "C_DocType_ID" ) ) ; cmbDocType . addItem ( new KeyNamePair ( MOrder . Table_ID , Msg . translate ( Env . getCtx ( ) , "Order" ) ) ) ; cmbDocType . addItem ( new KeyNamePair ( MRMA . Table_ID , Msg . translate ( Env . getCtx ( ) , "VendorRMA" ) ) ) ; cmbDocType . addActionListener ( this ) ; }
target:  Fill Picks. Column_ID from C_Order