- IDServiceFK (foreigh key)
I have database table called "Service", in which I store service names.
Then I have another table called "Order", in which is the foreigh key of Service.
Services are shown in the listView control. The listView shown checkBox control. So far I had only an option to choose only ONE item from the listView (only one item could be checked), because I have only one column name for it in the table Order (only one place - IDServiceFK). And the ID of this item (service`s name) was written into Order table (into service foreign key).
But I would like to change the code, which will allow user to select as many services from the list as he likes.
The problem is that I do not know how to do the Order table (how to insert all the IDs of selected services into Order table).
Should I do:
and limit the selection on 5. If more then 5 selectred, user gets a warning message that he reached the max of selection.
In case if user does select less then 5, I just send a DBNull to the others.
What do you think? How can I get rid of this problem? And how in case if I want that user selects 100 items? I can not do 100 column names just for the IDs.
Would be idea of creating another table, where will be stored only foreign keys of selected items a good solution?