只需要:

string stringName = EnumDisplayStatus.Visible.ToString("f");
// stringName == "Visible"

DB到c#

EnumDisplayStatus status = (EnumDisplayStatus)int.Parse(GetValueFromDb());

c#到DB

string dbStatus = ((int)status).ToString();

只需要:

string stringName = EnumDisplayStatus.Visible.ToString("f");
// stringName == "Visible"

解决方案:

int enumValue = 2; // The value for which you want to get string 
string enumName = Enum.GetName(typeof(EnumDisplayStatus), enumValue);

同样，使用GetName比显式转换Enum更好。

[性能基准代码]

Stopwatch sw = new Stopwatch (); sw.Start (); sw.Stop (); sw.Reset ();
double sum = 0;
int n = 1000;
Console.WriteLine ("\nGetName method way:");
for (int i = 0; i < n; i++) {
   sw.Start ();
   string t = Enum.GetName (typeof (Roles), roleValue);
   sw.Stop ();
   sum += sw.Elapsed.TotalMilliseconds;
   sw.Reset ();
}
Console.WriteLine ($"Average of {n} runs using Getname method casting way: {sum / n}");
Console.WriteLine ("\nExplicit casting way:");
for (int i = 0; i < n; i++) {
   sw.Start ();
   string t = ((Roles)roleValue).ToString ();
   sw.Stop ();
   sum += sw.Elapsed.TotalMilliseconds;
   sw.Reset ();
}
Console.WriteLine ($"Average of {n} runs using Explicit casting way: {sum / n}");

(样本结果)

GetName method way:
Average of 1000 runs using Getname method casting way: 0.000186899999999998
Explicit casting way:
Average of 1000 runs using Explicit casting way: 0.000627900000000002

你可以用简单的类型转换将int转换回枚举成员，然后调用ToString():

int value = GetValueFromDb();
var enumDisplayStatus = (EnumDisplayStatus)value;
string stringValue = enumDisplayStatus.ToString();

用这个:

string bob = nameof(EnumDisplayStatus.Visible);