NotNullRule.cs
620 Bytes
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
namespace HHECS.WinCommon.ValueRules
{
public class NotNullRule : ValidationRule
{
public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
if (value == null)
{
return new ValidationResult(false, "值不能为null");
}
else
{
return new ValidationResult(true, null);
}
}
}
}