c# - 强制枚举以获取与之关联的值？

Question

我有一个像这样的枚举：

public enum BlahType
{
    blahA = 1,
    blahB = 2,
    blahC = 3
}

如果我有一个值为“blahB”的字符串，是否可以将其与枚举 BlahType 进行强制转换以获得值 2？

Answer 1

利用：

BlahType yourEnumValue = (BlahType) Enum.Parse(typeof(BlahType), "blahB");

接着

int yourIntValue = (int) yourEnumValue;

Answer 2

您可以使用Enum.Parse方法，然后强制转换为 int。

Answer 3

enum test
{
   VAL1,
   VAL2
}

static void Main(string[] args)
{
   test newTest = (test)Enum.Parse(typeof(test), "VAL2");
   Console.WriteLine(newTest.ToString());
}

Answer 4

public void EnumInstanceFromString()
{

 DayOfWeek wednesday = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), "Wednesday");
 DayOfWeek sunday = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), "sunday", true);
 DayOfWeek tgif = (DayOfWeek)Enum.Parse(typeof(DayOfWeek), "FRIDAY", true);

 lblOutput.Text = wednesday.ToString() +
                  ".  Int value = " + 
                  (int)wednesday).ToString() + "<br>";

 lblOutput.Text += sunday.ToString() + 
                   ".  Int value = " + 
                   ((int)sunday).ToString() + "<br>";

 lblOutput.Text += tgif.ToString() + 
                   ".  Int value = " + 
                   ((int)tgif).ToString() + "<br>";

 }

Answer 5

使用此代码...

BlahType blah = Enum.Parse(typeof(BlahType), "blahB");

Answer 6

如上所述，您希望使用的其他一些人：

        BlahType myEnum = (BlahType)Enum.Parse(typeof(BlahType), "blahB");
        int myEnumValue = (int)myEnum;