Form内部组件((如block,parameter等))的调用要加冒号(以区别Program Unit和PLD的调用:调用Program Unit和PLD的Procedure,是不用加冒号的),在组件前加冒号,组件后再加组件的item
eg.
l_qty_detailed := :tolines_blk.quantity_detailed;(调用Block的一个item)
if (:parameter.disable_transact_btn <> 'TRUE') then (调用parameter的全局变量disable_transact_btn)
:block_name.item_name
:GLOBAL.variable_name
:SYSTEM.variable_name
:PARAMETER.my_param
:block_name.item_name
:GLOBAL.variable_name
:SYSTEM.variable_name
:PARAMETER.my_param
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