You must enter a value for all required fields

Problem

You get this error when running your application:

You must enter a value for all required fields.

This error occurs when a record is being inserted into a database with a NULL value in a field that does not allow NULL values. You may have added a code customization, database trigger or database stored procedure that violates this constraint.

Solution

Open your application in Visual Studio .NET’s debug mode and step through each line of custom code added. This will help identify which line of your code customization triggers this exception.

Enable database logging and tracing in your application to see the query executed when the record is saved to the database.