To know more about how to apply Data Validation to Cells in Microsoft Excel, you can follow our detailed post.

Data Validation in Microsoft Excel allows users to control the type of data entered into the worksheet. It picks from a list of rules to limit the type of data that can be entered into a cell.

How to apply data validation in Excel Excel’s data validation feature allows you to limit data input, ensuring that your data is accurate. Most data validation controls fulfill business rules.

Then, in the Data Validation Rules pane on the right-hand side, click "Add Rule." Next, in the Criteria field, select "Dropdown," and type the first possible input for this cell into the text field.

Learn how to use a data validation control to allow users to select when to run multiple VBA procedures in Microsoft Excel.

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.