Avoid exceptions when parsing enum value from string?

Question

In this example:

try
{
    this.myEnum = (MyEnum)Enum.Parse(typeof(MyEnum), queryStringKeyValue);
}
catch (Exception)
{
    this.myEnum = null;
}

How to avoid the introduced dependency on catching a generic exception? I'm getting no clues from ReSharper. Ideally, I'd like to get rid of the try / catch.

Answer 1

Try looking at Enum.TryParse

TryParse(Of TEnum)(String, TEnum) is identical to the Parse(Type, String) method, except that instead of throwing an exception, it returns false if the conversion fails. It eliminates the need for exception handling when parsing the string representation of an enumeration value.

Answer 2

You can eliminate the exception by using Enum.TryParse(), e.g.

MyEnum myEnum;
if (Enum.TryParse<MyEnum>(queryStringKeyValue, out myEnum))
{
    // successfully parsed enum
}