46 lines
1.2 KiB
C#
46 lines
1.2 KiB
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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/// 字符串长度校验特性
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/// </summary>
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/// <remarks>
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/// Add:yuangb 2019-3-5
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/// 使用格式：实体属性前加[StringLength(50, MinLength = 2, ErrorMessage = "获取微信用户信息失败")]
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/// </remarks>
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public class StringLengthAttribute : ValidateAttribute
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{
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/// <summary>
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/// 最小长度
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/// </summary>
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public int MinLength { get; set; }
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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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private int _maxLength;
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public StringLengthAttribute(int maxLength)
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{
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this._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 || string.IsNullOrWhiteSpace(oValue.ToString()) || oValue.ToString().Length > this._maxLength || oValue.ToString().Length < this.MinLength)
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{
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return ErrorMessage;
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}
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else
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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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}
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