如何在c#中将字符串转换为Flags枚举格式
本文关键字:转换 Flags 枚举 格式 字符串 | 更新日期: 2023-09-27 18:15:38
我有这个enum:
[Flags]
public enum Countries
{
None = 0,
USA = 1,
Mexico = 2,
Canada = 4,
Brazil = 8,
Chile = 16
}
我接收的输入字符串像这样:
string selectedCountries = "Usa, Brazil, Chile";
如何转换它(在c#中)回:
var myCountries = Countries.Usa | Countries.Brazil | Countries.Chile;
Use enumt . parse .
。Countries c = (Countries)Enum.Parse(typeof(Countries), "Usa, Brazil...");
这似乎适用于我,假设您的国家字符串由逗号分隔:
private static Countries ConvertToCountryEnum(string country)
{
return country.Split(',').Aggregate(Countries.None, (seed, c) => (Countries)Enum.Parse(typeof(Countries), c, true) | seed);
}
实际上我意识到这比我想象的要容易。我所需要做的就是将那个字符串转换为int,在我的例子中,或者一般的long,并将其强制转换为nations。它将把该数字转换为期望的格式。换句话说:
(Countries) 25 = Countries.Usa | Countries.Brazil | Countries.Chile;