Casting to Enum

Question

I have the following code.

private Enum MyEnum
{
    VALUE1=5, VALUE2=4, VALUE3=3, VALUE4=2, VALUE5=1
}

protected void Page_Load(object sender, EventArgs e)
{
    Session["EnumValue"] = "VALUE1";
    MyEnum test = (MyEnum) Session["EnumValue"];
}

In the page load, after the casting i have the value of the variable 'test' = 'VALUE2'.

I am expecting it to get test ='VALUE1'. Is there anything wrong with the code

Answer 1

You can't simply cast the string value back into the Enum, you have to parse it:

MyEnum enumValue = (MyEnum) Enum.Parse(typeof(MyEnum), (string)Session["EnumValue"]);

Answer 2

Why are you working with a string an not with the enum? Like:

private Enum MyEnum
{
     VALUE1=5, VALUE2=4, VALUE3=3, VALUE4=2, VALUE5=1
}

protected void Page_Load(object sender, EventArgs e)
{
    Session["EnumValue"] = MyEnum.VALUE1;
    MyEnum test = (MyEnum) Session["EnumValue"];
}