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VBA Coding in Access

By gerard_moreland ·
In a form I would like to be able to enter a piece of code into the form that will give a message to the user if the same data is entered i.e. I have developed a system that books rooms, if the room is booked for the same time on the same day then a message will tell the user that the room is already booked.

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by Bristar In reply to VBA Coding in Access

It sounds to me like you need a "Lost_Focus" control on the text box where the date would be entered that would first check to see if it is a valid date, then check to see if that date exists in the data table. You can either set it on the box, or in the processing of the submission button.

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