THe purpost of mine is to tell the system in the running time that someone click the arrow of the DDDW rather than the gaps or space which next to the arrow.
I get lots to do following the click on the arrow of The DDDW.
Generally, the system pops up the datawindow(dddw) with data which are 'selected' from the SQLserver in the rule that is writen in the WHERE caluse in the DDDW select sentence. I hope the 'Where caluse' can be created by system automatically according to what I input, such as 'user code', after pressing the arrow button of the DDDW.