How Do I Sort IList?

Question

There\'s no Sort() function for IList. Can someoene help me with this? I want to sort my own IList.

Suppose this is my IList:

Answer 1

For explanation why not to use OrderBy or similar check Christophe's answer.

Here is one attempt to make fast Sort:

public static void Sort(this IList ilist)
{
    switch(ilist)
    {
        case List lst:
            lst.Sort();
            break;
        case Array arr:
            Array.Sort(arr);
            break;
        default:
            throw new NotImplementedException();
            // or add slow impl if you don't want this to fail!!
    }
}