DisplayName with arrays

question
1

I often use the Attribute DisplayName to show my jobs in a method-like style:
MethodName ( parameter1, parameter2, …)
This works well with most parameter-types, but not with arrays.
Arrays.ToString() does not work well

With a DisplayName annotated like this:

    [DisplayName("Export({0})")]
    public static void Export(string[] array, IJobCancellationToken cancellationToken, PerformContext hangfireContext)
    {
    }

The result on the dashboard is like this:

    Export(System.String[])

How can I make a custom attribute that allows me to show array-values in the dashboard?
Preferably as a list of all elements:
string.Join(", ", array);
or if the number of elements is too long, the count og elements in the list.