Block bad data, duplicates, and incorrect dates with these custom rules.

Take advantage of the FluentValidation open-source library to validate data in your ASP.NET Core application and keep your code clean, organized, and maintainable. To preserve the integrity, ...

When you work with Excel, you often need to ensure that the data entered into your spreadsheets is accurate and consistent. One effective way to achieve this is by using a drop-down list. In this ...

Data validation input messages are cleaner, more stable, and more professional.

If you see the error “This value doesn’t match the data validation restrictions defined for this cell” when entering a value in an Excel cell, the solutions ...

Microsoft Excel spreadsheets are essential tools in various fields, from businesses to academia. However, despite the program's significant utility, managing an Excel spreadsheet often turns into a ...

Marketing is built on one essential element: accurate information. As marketers, we're always collecting and analyzing data to understand customer behaviors, preferences, and trends. That information ...