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https://gitee.com/ThingsGateway/ThingsGateway.git
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49 lines
1.4 KiB
C#
49 lines
1.4 KiB
C#
//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://thingsgateway.cn/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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using System.ComponentModel.DataAnnotations;
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namespace ThingsGateway;
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/// <summary>
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/// 最小值校验
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/// </summary>
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[AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
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public sealed class MinValueAttribute : ValidationAttribute
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{
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/// <summary>
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/// 最小值
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/// </summary>
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/// <param name="value"></param>
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public MinValueAttribute(UInt64 value)
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{
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MinValue = value;
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}
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private UInt64 MinValue { get; set; }
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/// <summary>
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/// 最小值校验
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public override bool IsValid(object? value)
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{
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if (value is null)
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{
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return false;
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}
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var input = Convert.ToUInt64(value);
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return input >= MinValue;
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}
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}
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