using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Controls; using TouchSocket.Core; namespace TeamAAS_VP.Identity { public class NameValidationRule : ValidationRule { public override ValidationResult Validate(object value, CultureInfo cultureInfo) { if (value!=null && !string.IsNullOrEmpty(value.ToString())) { return new ValidationResult(true, null); } else { return new ValidationResult(false, "Invalid_Name"); } } } }