我将如何转换特尔斐设置代码为C＃？ [英] How would I convert this Delphi Set code to C#?

问题描述

我有以下Delphi代码定义一组，然后一个简单的，如果来检查，如果集合类型的传递值落在一定值范围内声明。

I've got the following Delphi code that defines a set and then a simple if statement that checks if a passed value of the set type falls within certain values.

TOverwriteMode = (omNone, omDateAndSize, omDateOrSize, omDate, omSize, omForce);

...

if OverwriteMode in [omDateAndSize, omDateOrSize, omDate, omSize] then
begin
end;

我是用转换为C＃的枚举，但现在检查值的代码包含一个 if或声明，似乎有点长篇大论给我。

I've converted it to C# using an enum, but the code for checking the value now consists of an if or statement which seems a bit long winded to me.

public enum FileOverwriteMode
{
    None,
    DateAndSize,
    DateOrSize,
    Date,
    Size,
    Force,
}

...

if ((overwriteMode == FileOverwriteMode.DateAndSize) || 
    (overwriteMode == FileOverwriteMode.DateOrSize) || 
    (overwriteMode == FileOverwriteMode.Date) || 
    (overwriteMode == FileOverwriteMode.Size))
{
}

有没有办法使用一些C＃一套相当于简化呢？

Is there a way to simplify it using some kind of C# set equivalent?

推荐答案

好了，你可以这样做：

private static readonly HashSet<FileOverWriteMode> ValidOverwriteModes
    = new HashSet<FileOverWriteMode>
{
    FileOverwriteMode.DateAndSize, FileOverwriteMode.DateOrSize,
    FileOverwriteMode.Date, FileOverwriteMode.Size,
};

...

if (ValidOverwriteModes.Contains(overwriteMode))
{
    // ...
}

（重命名 ValidOverwriteModes 视的真正含义是什么。 ）

(Rename ValidOverwriteModes depending on what the real meaning is.)

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