23 lines
668 B
C#
23 lines
668 B
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace LMS.Common.Attributes
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{
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[AttributeUsage(AttributeTargets.Property)]
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public class NotEmptyAttribute : ValidationAttribute
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{
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protected override ValidationResult IsValid(object value, ValidationContext validationContext)
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{
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if (value is string str && string.IsNullOrWhiteSpace(str))
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{
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return new ValidationResult(ErrorMessage ?? "字段不能为空");
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}
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return ValidationResult.Success;
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}
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}
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}
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