在C#中为一系列验证结果构建一个N深度结构

Question

背景

我有以下一组 ValidationResult 数据。这是 List<ValidationResult>。

仅供参考

实际上包含两种类型。我做了一个自定义验证结果，实现 ValidationResult 来收集模型中的所有错误。所以这组数据其实有两类数据。一个是 ValidationResult，另一个是 CustomValidationResult。

[0] { "Name Field shouldn't be null" }
[1] { "Money Field should be in range 0 and 100" }
[2] { "Validation failed at CompanyList" } // This is CustomValidationResult
  ㄴ [0] { "CompanyName Field shouldn't be null" } // ValidationResult inside of CustomValidationResult.
  ㄴ [1] { "Validation failed at DepartmentList" } // Belows are same as above
       ㄴ [0] { "DepartmentName Field shouldn't be null" }
       ㄴ [1] { "Validation failed at EmployeeList" }
            ㄴ [0] { "EmployeeName Field shouldn't be null" }
            ㄴ [1] { "EmployeeEmail Field's format should be Email" }

这是 Validator.TryValidateObject(model, context, true) 方法的结果，System.ComponentModel.DataAnnotations.Validator 中的内置静态函数。

无论如何，我想让结果集看起来更漂亮，以便轻松访问各个错误。我正在考虑 "Key" "Value" 结构，这样我就可以很容易地找出哪些属性在验证过程中失败了。

// I want the result to look something like this below.

[0] { "Name", "Name Field Shouldn't be null" }
[1] { "Money", "Money Field should be in range 0 and 100" }
[2] { "CompanyList", "Validation failed at CompanyList" }
  ㄴ [0] { "CompanyName", "CompanyName Field shouldn't be null" }
  ㄴ [1] { "DepartmentList", "Validation failed at DepartmentList" }
       ㄴ [0] { "DepartmentName", "DepartmentName Field shouldn't be null" }
       ㄴ [1] { "EmployeeList", "Validation failed at EmployeeList" }
            ㄴ [0] { "EmployeeName", "EmployeeName Field shouldn't be null" }
            ㄴ [1] { "EmployeeEmail", "EmployeeEmail Field's format should be Email" }

问题

但是"PropertyName","ErrorMessage"key-value模型不能像这样形成N-depth的结构。我不知所措。

问题

我应该如何为此建立数据结构模型？
最佳做法是什么？

Answer 1

您可以构建一个如下所示的 ValidationResultNode：

class ValidationResultNode
{
    public string PropertyName {get; private set;}
    public string ErrorMessage {get; private set;}
    public List<ValidationResultNode> Children {get; private set;}
    public ValidationResult(string propName, string errMsg)
    {
        PropertyName = propName;
        ErrorMessage = errMsg;
        Children = new List<ValidationResultNode>();
    }

    // method to add a child error
    public ValidationResultNode AddChildError(string propName, string errMsg)
    {
        var result = new ValidationResultNode(propName, errMsg);
        Children.Add(result);
        return result;
    }

它基本上是作为嵌套列表实现的分层树。

如果您使用的是 Windows 表单，请查看 TreeView class if you want to display this. For WPF, look into the WPF TreeView。

在C#中为一系列验证结果构建一个N深度结构

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