
- Apply data validation to cells - Microsoft Support- Use data validation rules to control the type of data or the values that users enter into a cell. One example of validation is a drop-down list (also called a drop-down box or drop-down menu). … 
- Create a drop-down list - Microsoft Support- You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define. 
- More on data validation - Microsoft Support- You can use data validation to restrict the type of data or values that users enter into cells. This is an advanced topic on data validation. For an introduction to data validation, and how to … 
- Add, change, or remove data validation - Microsoft Support- The following example shows how to create a data validation condition to ensure that data typed into a text box control matches a specific value — in this case, the word Hello. 
- Add or remove items from a drop-down list - Microsoft Support- If you set up your list source as an Excel table, then all you need to do is add or remove items from the list, and Excel will automatically update any associated drop-downs for you. 
- Find cells that have data validation rules - Microsoft Support- You can find cells in a workbook that contain data validation by using the Go To Special dialog box. On the Edit menu, point to Find, and then click Go To. Click Special. Select Data … 
- Application d’une validation des données aux cellules- Utilisez les règles de validation des données pour contrôler le type de données ou les valeurs que les utilisateurs entrent dans une cellule. Une liste déroulante (aussi appelée « menu déroulant … 
- Remove a drop-down list - Microsoft Support- To remove a drop-down list, click the cell with the list, then click Data > Data Validation, and then on the Settings tab, click Clear All, then OK. A drop-down list is also known as a drop-down … 
- Aplicar la validación de datos a celdas - Soporte técnico de …- Excel puede restringir la entrada de datos a determinadas celdas mediante validación de datos, solicitar a los usuarios que escriban datos válidos cuando se seleccione una celda y mostrar … 
- Display or hide circles around invalid data - Microsoft Support- Excel displays a red circle around any cells that contain invalid data. All cells that don't meet their data validation criteria are circled, including values that were typed, copied, or filled in the …