hello Arsen
You have to set the focus on the control hooked to the ID field whenever
user wants to create a new record, as for checking duplicate key values,
in paradox, if you move yourself from the record the changes are post,
thus creating a key violation exception if the value already exists. To do
this you have to have a clone value, where right before moving or exiting
the ID field control, you will check the existing value in the clone
table, if value does not exists you will continue your work, if it exists,
you will keep focus on the control and force the user to cancel changes or
enter a new value.
In all cases, I suggest not to use paradox. There are lot of good
alternatives up there.
Vahan Yoghoudjian
Information System Administrator
Schneider Electric East Med
Arsen Khachatryan <[EMAIL PROTECTED]>
Sent by: delphi-en@yahoogroups.com
08/07/2006 03:48 PM
Please respond to delphi-en
To: delphi-en@yahoogroups.com
cc:
Subject: [delphi-en] ID Control
Hi friends,
I have Db in paradox with BDE and how can I put the control on the ID
field, and when the user types the same ID number twice, can get the error
message??
Thanks a lot friends
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