将输入字段值放置在另一个表单字段的数据注释参数中 asp.net

问：

我有一组单选按钮和一个文本字段。如果选择了两个单选按钮之一，我想使文本字段成为必需的。我使用数据注释制作了一个自定义验证类。我似乎无法弄清楚如何将单选按钮的值作为参数传递给数据注释。我似乎无法使用它里面的“radioButton”给出一个错误，因为它不是静态的。但是我不能让它变得静态，否则它会破坏我无法更改的其他代码。 型

public string radioButton
        {
            get => This.ArchiveFileOptions;
            set => SetProperty(This.ArchiveFileOptions, value, () =>
            {
                This.ArchiveFileOptions = value;
                ObjectState = ObjectState != ObjectStateEnum.Added ? ObjectStateEnum.Modified : ObjectStateEnum.Added;
            });
        }


        [IfRadioSelectedTextRequired(text: "Single Pdfs", radioValue: {{RADIO BUTTON VALUE HERE}})]
        public string textField
        {
            get => This.PdfIndexingRequirements;
            set => SetProperty(This.PdfIndexingRequirements, value, () => { This.PdfIndexingRequirements = value; ObjectState = ObjectState != ObjectStateEnum.Added ? ObjectStateEnum.Modified : ObjectStateEnum.Added; });
        }

自定义类

public class IfRadioSelectedTextRequired : ValidationAttribute
    {

        private readonly string _text;
        private readonly string _radioValue;
        public IfRadioSelectedTextRequired(string text, string radioValue)
        {

            _text = text;
            _radioValue = radioValue;
        }
        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            var fieldValue = value as string;

            if (_radioValue != null)
            {
                if (_radioValue == _text)
                {

                    if (fieldValue == null)
                    {
                        //error
                        return new ValidationResult($"This field is required");
                    }
                    if (fieldValue == "")
                    {
                        //error
                        return new ValidationResult($"This field is required");
                    }
                    if (fieldValue != null)
                    {
                        //success
                        return ValidationResult.Success;
                    }
                }
                if (_radioValue != _text)
                {
                    //success
                    return ValidationResult.Success;
                }
            }


            //success
            return ValidationResult.Success;


        }

    }

我尝试在数据注释中添加字段名称。我想知道是否有办法将它拉到课堂内。