Say I have int val = 1; What is the best way to check whether or not that value corresponds with an enum. Here is a sample enum:
public enum AlertType
{
Success=1,
Warning=2,
Error=3
};
I'm looking for an answer that has the best maintainability.
I think you are looking for Enum::IsDefined Method
Returns an indication whether a constant with a specified value exists in a specified enumeration.
Updated:-
Try something like this:-
if(Enum.IsDefined(typeof(AlertType), val)) {}
if(Enum.IsDefined(typeof(AlertType), val)) {}This should work:
Int32 val = 1;
if (Enum.GetValues(typeof(AlertType)).Cast<Int32>().Contains(val))
{
}
You can cast you enum choices to an int for that check :
const int val = 1;
if (val == (int)AlertType.Success)
{
// Do stuff
}
else if (val == (int) AlertType.Warning)
{
// Do stuff
}
else if (val == (int) AlertType.Error)
{
// Do stuff
}
In addition to the other solutions offered, here's another easy way to check:
Enum.GetName(typeof(AlertType), (AlertType)val) != null
if (Enum.IsDefined(typeof(AlertType), x))
{
var enumVal = Enum.Parse(typeof(AlertType), x.ToString());
}
else
{
//Value not defined
}
x to AlertType with (AlertType)x.