一个PB的问题
datastore ld_DataStore_Order
ld_DataStore_Order = CREATE DataStore
ld_DataStore_Order.DataObject = "dw_order"
ll_RowCount = dw_1.RowCount()
ll_OrderId = ld_DataStore_Order.GetItemNumber(ll_RowCount,'order_id')//line 14
出现一错:Ivalid DataWindow row/column specified at line 14 in clicked event of object cb_1 of w_add
请问我是怎么错的?