C# C重写继承的验证

我的所有实体都从以下类继承：

using System.ComponentModel.DataAnnotations;
#nullable enable

namespace AutomationNavigator.Model.Core
{
    public abstract class NamedEntity : Entity, INamedEntity
    {
        public NamedEntity() : base()
        {
        }

        [MaxLength(100,ErrorMessage ="Name must be 100 characters or less.")]
        [Required]
        [MinLength(3, ErrorMessage = "Name must be at least 3 characters.")]
        [RegularExpression("^[A-Za-z0-9_. ]{3,100}$")] // Alphanumeric with Underscore and Dot only
        [Display(Name= "Name")]
        public string? Name { get; set; }
    }
}

对名称字段的验证可以普遍应用，但我刚刚创建的特定场景除外，在该场景中，我需要在我的应用程序中允许特殊字符是名称字段。我可以找人覆盖/删除正则表达式验证吗？我试图完成的课程是：

namespace AutomationNavigator.Model.ProcessAssessment
{
    public class ProcessFile: NamedEntity
    {
        [Display(Name = "OrganizationId")]
        public Guid? OrganizationId { get; set; }

        [ForeignKey("OrganizationId")]
        [Display(Name = "Organization")]
        public Organization? Organization { get; set; }

        [Display(Name = "BusinessProcessId")]
        public Guid? BusinessProcessId { get; set; }

        [ForeignKey("BusinessProcessId")]
        [Display(Name = "BusinessProcess")]
        public BusinessProcess? BusinessProcess { get; set; }

        [Display(Name = "ProcessDocumentId")]
        public Guid? ProcessDocumentId { get; set; }

        [ForeignKey("ProcessDocumentId")]
        [Display(Name = "ProcessDocument")]
        public ProcessDocument? ProcessDocument { get; set; }

        [Display(Name = "ProcessFileStatusLookupId")]
        public Guid? ProcessFileStatusLookupId { get; set; }

        [ForeignKey("ProcessFileStatusLookupId")]
        [Display(Name = "LookupValue")]
        public LookupValue? LookupValue { get; set; }

        [Display(Name = "BlobId")]
        public Guid? BlobId { get; set; }

        [ForeignKey("BlobId")]
        [Display(Name = "Blob")]
        public Blob? Blob { get; set; }

        [Display(Name = "SizeInBytes")]
        public double? SizeInBytes { get; set; }

        [Display(Name = "Version")]
        public double? Version { get; set; }

        [MaxLength(500, ErrorMessage = "Description must be 500 characters or less.")]
        [Display(Name = "Description")]
        public string? Description { get; set; }
    }
}

---

虚拟财产是允许后代定制行为的好方法

我将使Name属性在抽象类中为虚拟属性，并在需要更改验证的派生特定类中重写它

在抽象类中：

[MaxLength(100,ErrorMessage ="Name must be 100 characters or less.")]
[Required]
[MinLength(3, ErrorMessage = "Name must be at least 3 characters.")]
[RegularExpression("^[A-Za-z0-9_. ]{3,100}$")]
[Display(Name= "Name")]
public virtual string? Name { get; set; }

在派生类中：

public class ProcessFile: NamedEntity
{    
   public override string? Name { get; set;} 
}

您还可以使基类的名称直接可用于派生类并对其进行验证。比如：

public abstract class NamedEntity
{
    protected string name;

    public virtual string Name
    {
        get { return name; }
        set
        {
            //validation, if any
        }
    }

    public NamedEntity()
    {
        name = "";
    }

}

public class ProcessFile: NamedEntity
{

    public override string Name
    {
        get { return base.Name; }

        set { base.Name = // new validation; }
    }

    public ProcessFile()
        : base()
    {
        base.Name = "";        
    }
}

我希望有帮助

---

干杯。

这可能会对您有所帮助。我希望这会起作用：在抽象类中使名称为虚拟名称，并在例外情况下覆盖它。@MKR这是用于类属性的。我认为这种方法是可能的attributes@Julian您好，佩德罗。我首先要感谢你的详尽回答。我将使道具为虚拟的，然后在派生类中重写它。这是天才，我不知道你可以用属性来做，我认为这只是为方法保留的。每天学习新的东西。然而，我真的不明白你给我的第二个选择是什么。你能详细说明一下你在每节课上使用getter和setter做什么吗？谢谢，不用谢，迪恩。谢谢基类中的getter和setter仅用于本文中的封装检查：。在派生类中，setter可以类似于set{base.Name=value；}，如果需要，可以使用新的验证，其中value关键字是客户机定义的值。注意，通过这样做，我们还重写了基类中的值。下面的文章有一个类似的示例，基类不是抽象类，但是：