枚举作为可选参数 [英] Enum as a optional parameter

问题描述

大家好，



我正在尝试使用枚举作为可选参数。但我得到错误说标识符预期。谁能告诉我如何使用枚举;

我尝试过以下代码;

Hello all,

I am trying to use an enum as a optional parameter. But i get en error saying "identifier expected". Can anyone tell me how to use enum;
I have tried the following code;

enum attachmentType { filePath , fileString}; 
public static void SendEmail(attachmentType = attachmentType.filePath)
{
  // Do stuff
}

我也发现了这个链接 [ ^ ]。这是一个类似的问题，但答案并不令人满意。



提前谢谢。

I have also found this link[^]. It is a similar question but the answer is not satisfactory.

Thanks in advance.

推荐答案

你仍然需要为参数声明一个名称。尝试将其更改为;

You still need to declare a name for parameter. Try changing it to;

public enum attachmentType { filePath , fileString};

public static void SendEmail(attachmentType type = attachmentType.filePath)
{
  // Do stuff
}

希望这有帮助，

Fredrik

Hope this helps,
Fredrik

应该是这样的：

Should be like this:

enum attachmentType { filePath , fileString};
public static void SendEmail(attachmentType type = attachmentType.filePath)
{
  // Do stuff
}

您缺少参数名称。

You are missing the parameter name.

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