Switch case in C# - a constant value is expected

Question

My code is as follows:

public static void Output(IEnumerable dataSource) where T : class
{   
    dataSourceName = (typeof(T).Name);
    sw         


        

Answer 1

Now you can use nameof:

public static void Output(IEnumerable dataSource) where T : class
{
    string dataSourceName = typeof(T).Name;
    switch (dataSourceName)
    {
        case nameof(CustomerDetails):
            var t = 123;
            break;
        default:
            Console.WriteLine("Test");
    }
}

nameof(CustomerDetails) is basically identical to the string literal "CustomerDetails", but with a compile-time check that it refers to some symbol (to prevent a typo).

nameof appeared in C# 6.0, so after this question was asked.