Most people set up a dropdown list to make spreadsheets smarter with Excel's data validation. However, the Custom option in the Data Validation dialog accepts any formula that returns TRUE or FALSE, ...

Validation should begin as close to your database as possible: in your Entity Framework entities. Here's how you can integrate validation code into both the entities the Entity Framework generates and ...

Excel's conditional formatting tool applies formatting depending on cells' contents. Validation rules can change cells font, style, size or border. They can also change the text's color. For example, ...

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work. Validating Microsoft Excel data is vital to prevent ...

Susan Harkins shows you a quick method for removing validation rules for multiple ranges in Excel, at the same time. Validation is a powerful feature that lets you control the data users can enter ...