Retrieve list of all the elements on a page

I clearly don't understand how locators work.
How do I retrieve a list of all the elements on a page where the name matches a pattern?

    // this was translated from javascript
    public async Task<List<string>> ListOfItems(IPage page, string pattern) {
        await page.WaitForSelectorAsync('.' + pattern);
        var itemlists = await page.$$(pattern); // this doesn't translate

        List<string> allitems = new List<string>();

        foreach (var itemlist in itemlists) {
            allitems.Add(await itemlist.innerText());
        }
        return allitems;
    }

My immediate use case is a page that should have a list of items displayed from the database. If there are 5 items in the database, there should be 5 items in the list. I thought this might be a generally useful routine, but I don't have any other specific use cases yet.

---update---
This looks promising.
Tries to use partial CSS selectors, so I can select on name, class, or id.
On the downside, it doesn't use the playwright API.
But gives 'Unexpected token "^=" while parsing selector "id^=note"'

    Assert.AreEqual(5, (await ListOfItems(page, "id^=note")).Count());

    public async Task<List<string>> ListOfItems(IPage page, string pattern) {
        var locator = page.Locator(pattern);
        var itemlist = await locator.AllAsync(); //fails here
        List<string> allitems = new List<string>();

        foreach (var item in itemlist) {
            // Get the element handle for the item
            var element = await item.ElementHandleAsync();
            // Get the inner text for the element
            var text = await element.InnerTextAsync();
            allitems.Add(text);
        }
        return allitems;
    }

You are missing [] around id^=note. The syntax of the CSS selecto should be [attribute^=value]. So, the correct CSS selector is

[id^="note"]