38 lines
956 B
C#
38 lines
956 B
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Appointment.Entity.ValidateAttribute
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{
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/// <summary>
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/// 字符串最大长度
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/// </summary>
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/// <remarks>
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/// Add:yuangb 2020-12-9
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/// 使用格式：实体属性前加 [StringMaxLength(200, ErrorMessage = "备注说明最大长度200个字符")]
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/// </remarks>
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public class StringMaxLengthAttribute : ValidateAttribute
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{
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private int _MaxLength = 0;
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/// <summary>
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/// 报错提示
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/// </summary>
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public string ErrorMessage { get; set; }
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public StringMaxLengthAttribute(int maxLength)
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{
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_MaxLength = maxLength;
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}
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public override string Validate(object oValue)
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{
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if (oValue != null && oValue.ToString().Length > _MaxLength)
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{
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return ErrorMessage;
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}
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return null;
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}
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}
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}
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