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我的模型:

public class FPTAssetSummary : IValidatableObject
    {
    [Required]
    [Display(Name = "New Version")]
    public int ForatFrom { get; set; }

    [Required]
    [Display(Name = "Old Version")]
    public int ForatTo { get; set; }

    public List<FPTFORATExcel> FPTForatVersionList { get; set; }

    public IEnumerable<ValidationResult> Validate(
        ValidationContext validationContext)
    {
        if (ForatFrom <= ForatTo)
        {
            yield return new ValidationResult(
                "Old version must be higher than the new version");
        }
    }
}

我的控制器:

    [HttpPost]
    public ActionResult ForatExcelCompare(FPTAssetSummary foratcompare)
    {

        var ExcelIDFrom = foratcompare.ForatFrom;
        var ExcelIDTo = foratcompare.ForatTo;

        return RedirectToAction("Index", new
        {
            ForatFrom = ExcelIDFrom,
            ForatTo = ExcelIDTo
        });
    }

目前,我正在将两个整数从一个视图(2 个下拉框)发布到下面的控制器,并使用两个参数(ForatFromForatTo)将这两个值传递到索引中。但是我的IValidationObject方法没有返回ValidationResult消息。我想我需要检查ForatExcelCompare方法中的模型状态,但是如果模型状态为假,我需要能够返回到前一个控制器并显示错误消息。有任何想法吗?

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