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8.4

VB code in access database for validating the invoice no text field that user enters in the access form before submit

Asked by sru578 in Microsoft Access Database

Please help me I need help in writing VB code in MS Access database module.

I want to validate a form with the duplicate invoice no ie.. User enters the duplicate invoice number in the text box then, i should display a warning message saying Invoice number already exists in the database. The Invoice number in the database datatype is text field

Can you guys please help me writing a code for checking the duplicate value for invoice no and displaying error message ,otherwise proceed with the insert.
I am planning to write code in the event procedure

Private Sub NextInvoice_Click()

End Sub

Can you also explain how to attach a vb code to the command button or Text box and when to perform validation in the form

Regards,

srujana

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20091111-EE-VQP-92

VB code in access database for validating the invoice no text field that user enters in the access form before submit

Asked by sru578 in Microsoft Access Database

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