This example shows how to apply DataAnnotations attributes that specify data validation rules. The RequiredAttribute is applied to the Name and Department data fields. The StringLengthAttribute is applied to the Position data field.

• Employees.cs (VB: Employees.vb)
• MainWindow.xaml (VB: MainWindow.xaml)

• Attribute-Based Validation
• Data Annotation Attributes

• WPF Data Grid - How to Validate Data Rows
• WPF Data Grid - How to Validate Cell Editors