Compare Two data tables and print matched value row index from the table2 using linq

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arrMatchIDX | Int32 Array =

(From i in Enumerable.Range(0,dt2.Rows.Count)
Let v = dt2.Rows(i)("Name").toString.Trim
Let chk = dt1.AsEnumerable.Any(Function (d1) d1("Name").toString.Trim.Equals(v))
Where chk
Select idx = i).toArray
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