数据窗口字段编辑时过滤下拉数据窗口

// event editchanged

datawindowchild    ldw_temp
String ls_filter
Long ll_start
If dwo.Name = 'syjsf02' Then
This.GetChild('syjsf02',ldw_temp)
If Trim(Data)='' Or IsNull(Data) Then
ls_filter = ""
Else
ls_filter = "(szzxm01 LIKE '" + Upper(Data) + "%') OR (szzxm08 LIKE '" + Upper(Data) + "%' ) or (szzxm09 like '" + Upper(Data) + "%' ) OR (szzxm02 LIKE '%" + Upper(Data) + "%')"
End IF
ldw_temp.SetFilter(ls_filter)
ldw_temp.Filter()
ll_start = This.SelectedStart()
This.SelectText(ll_start,0)
Return 1
END IF

//event itemchanged

datawindowchild    ldw_temp
dec ldec_dj

if dwo.name = 'syjsf02' then
This.GetChild('syjsf02', ldw_temp)
IF ldw_temp.RowCount() <= 0 THEN
This.SetItem(This.GetRow(),'syjsf02','')
ldw_temp.SETFILter("")
ldw_temp.FIlter()
setitem(row,'dj',0)
RETURN 1
else
This.object.syjsf02[row] = ldw_temp.getitemstring(ldw_temp.getrow() , 'szzxm01')
ldec_dj = ldw_temp.getItemNumber(ldw_temp.getrow(),'nzzxm07')
setitem(row,'dj',ldec_dj)
ldw_temp.SETFILter("")
ldw_temp.FIlter()
return 2
END IF
end if

// ue_enter
datawindowchild ldw_temp
This.GetChild('syjsf02',ldw_temp)
ldw_temp.SETFILter("")
ldw_temp.FIlter()
this.setredraw(true)