c# - ArrayList.IndexOf( wild card? ) -


i'm trying find index of first element of arraylist 'tag' property not equal null.

i thought effect of

arraylist.indexof(p => p.tag != null);

or

arraylist.indexof(*.tag != null);

but neither of these work. there way use indexof property of object?

try array.findindex:

searches element matches conditions defined specified predicate, , returns zero-based index of first occurrence within entire array.


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