如何修复错误名称：不允许指定的名称：_destroy？ [英] How to fix error 'Name: The specified name is not allowed: _destroy'?

问题描述

我已经看过类似的问题，建议我应该使用column属性来更改列的名称，但是我已经做到了，我仍然会收到错误。这是我的Model类：

  public class Task 
 {
 public int TaskID {get;组; } 
 public string TaskDescription {get;组; } 
 public bool IsDone {get;组; } 
 
 [Column（Active）] 
 public bool _destroy {get;组; } 
} 
  

解决方案

问题是实体框架不允许实体属性名称以下划线字符（包括其他字符类）开头。使用反射器，我能够跟踪用于验证属性名称的正则表达式，它是以下内容：

  @ \p {的L1} \p {路} \p {LT} \p {罗} \p {Lm的} \p {NL}] [{\p的L1} \p {路} \p {LT} \p {罗} \p {Lm的} \p {NL} \p {锰} \p {了Mc} \p {钕} \p {PC} \ p {Cf}] {0，}
  

这意味着实体属性名称只能以字符开头取自以下Unicode字符类：

L1，Lu，Lt，Lo，Lm，Nl

属性名称中的剩余字符可能包括以下类别：

Mn，Mc，Nd，Pc，Cf

下划线字符（U + 005F）在Pc类中。您可以通过重命名_destroy属性来删除错误，如destroy。您可以在这里找到一个字符类参考这里。

I have looked at similar questions that suggest I should use the column attribute to change the name of the column, but I have done this and I still get the error. Here is my Model class:

public class Task
{
    public int TaskID { get; set; }
    public string TaskDescription { get; set; }
    public bool IsDone { get; set; }

    [Column("Active")]
    public bool _destroy { get; set; }
}

解决方案

The problem is that Entity Framework does not allow entity property names to begin with underscore characters (among other character classes). Using Reflector, I was able to track down the regex used to validate property names, and it is the following:

@"[\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Lm}\p{Nl}][\p{Ll}\p{Lu}\p{Lt}\p{Lo}\p{Lm}\p{Nl}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\p{Cf}]{0,}"

This means that entity property names can begin only with characters taken from the following Unicode character classes:

Ll, Lu, Lt, Lo, Lm, Nl

The remaining characters in a property name may include those classes, as well as the following:

Mn, Mc, Nd, Pc, Cf

The underscore character (U+005F) is in the Pc class. You can remove the error by renaming the _destroy property as, say destroy. You can find a character class reference here.

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