ThingsGateway/framework/ThingsGateway.Admin.Core/Attributes/MinValueAttribute.cs

#region copyright
//------------------------------------------------------------------------------
//  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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#endregion

using System.ComponentModel.DataAnnotations;

namespace ThingsGateway.Admin.Core;

/// <summary>
/// 最小值校验
/// </summary>
public class MinValueAttribute : ValidationAttribute
{
    /// <summary>
    /// 最小值
    /// </summary>
    /// <param name="value"></param>
    public MinValueAttribute(double value)
    {
        MinValue = value;
    }

    private double MinValue { get; set; }

    /// <inheritdoc/>
    public override string FormatErrorMessage(string name)
    {
        return base.FormatErrorMessage(name);
    }

    /// <summary>
    /// 最小值校验
    /// </summary>
    /// <param name="value"></param>
    /// <returns></returns>
    public override bool IsValid(object value)
    {
        if (value is null)
        {
            return true;
        }

        var input = Convert.ToDouble(value);
        return input > MinValue;
    }
}