How to get fast instance number of given controlname

[Gintaras]

The code is good, and I can't make it better or faster.
The foreach part can be slightly shorter.
 

Code:

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    int i=1;
    foreach (var item in w.ChildAll(cn: ctrlName)) {
        print.it($"item={item}");
        if (c == item)
            break;
        else
            i++;
    }

or

Code:

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    int i = Array.IndexOf(w.ChildAll(cn: ctrlName), c) + 1;