使用.NET的codeDOM创建枚举 [英] creating enumeration using .NET's CodeDom

问题描述

我想用 codeDOM API 来创建一个枚举。我寻觅足够在互联网上，我得到的结果，它们是任何使用几乎没有。

I want to create an Enumeration using CodeDom API. I have searched enough on the internet and I get results which are hardly of any use.

我要生成的

public enum bug_tracker_type
{
    [Description("Bugzilla")]
    Bugzilla,
    [Description("Debbugs")]
    Debbugs,
    [Description("PHP Project Bugtracker")]
    PHP_Project_Bugtracker,
    [Description("Google Code")]
    Google_Code
}

我用 codeTypeDeclaration 并设置它的 IsEnum 属性为真，也创造了一个名称，并设置它的属性。

I used CodeTypeDeclaration and set it's IsEnum property as true, created a name, and set it's Attributes.

现在最大的问题是如何填充的身体？

Now the biggest problem is how to populate the body?

我试过

CodeTypeMember mem = new CodeTypeMember();
mem.Name = WadlSharpUtils.CreateIdentifier(discreteValue.value);
mem.CustomAttributes.Add(new CodeAttributeDeclaration(discreteValue.value));
// enumCandidate is an instance of CodeTypeDeclaration
enumCandidate.Members.Add(mem);

虽然使用这个解决方案，我可以生成描述属性，线的末端将是; ，而不是，

推荐答案

枚举成员的领域，所以使用codeMemberField：

Enum members are fields, so use CodeMemberField:

CodeTypeDeclaration type = new CodeTypeDeclaration("BugTracker");
type.IsEnum = true;

foreach (var valueName in new string[] { "Bugzilla", "Redmine" })
{
  // Creates the enum member
  CodeMemberField f = new CodeMemberField("BugTracker", valueName);
  // Adds the description attribute
  f.CustomAttributes.Add(new CodeAttributeDeclaration("Description", new CodeAttributeArgument(new CodePrimitiveExpression(valueName))));

  type.Members.Add(f);
}

（在这个简化的code，该说明将永远是一样的会员名称。当然，在你真正的code，这些可以是不同的。）

(In this simplified code, the Description will always be the same as the member name. In your real code, of course, these can be different.)

一个小怪癖，你可能会注意到的是，codeDOM最后一个枚举值后加一个逗号：

A little quirk you may notice is that CodeDom adds a comma after the last enum value:

public enum BugTracker {

    [Description("Bugzilla")]
    Bugzilla,

    [Description("Redmine")]
    Redmine,                         // trailing comma
}

这是由C＃语言，$ P $允许pcisely以支持generated- code的情况就是这样，和将编译罚款，即使它看上去有些奇怪，以人类的阅读器。

This is permitted by the C# language, precisely in order to support generated-code scenarios like this, and will compile fine even if it looks a bit odd to the human reader.

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