>Dear all,
>
>I have a table. When the user adds a new record, I want to check if this new record (for example, same UserID) has already exist in the table or not. How can I do that?
>I found in an example that it has a "Save" button and the CLICK event is:
>result = TABLEUPDATE(.F.) if result = .F. =MESSAGEBOX("Fail to save!"+CHR(13)+"User ID already exists";
>else
>....
>...
>It works in this example. I have tried to find any coding for checking about the existing data in this example but cannot find any idea.
>Anyone can help?
>
>Thanks
>Power

---

Power,
Probably sample depends on table's primary key. If UserId is primary field than tableupdate(.f.) would return .f.
If you don't do that with a primary key you could use other workarounds :
-If row buffered use the table again and seek userid in "used again" alias (use again doesn't see buffered ones).
-Do the same with an SQL check (it doesn't see buffered also).
-Also you could just use seek (lookup()). Seek would catch first entered and if its recno() # yours than its duplicate.
Cetin