Return the Index value of a datatable, by searching the Datatable

[AndyAndromeda]

So then read the documentation and search for examples on the web.

i have, and i can't get an example to work for me, or one that's annotated enough to help make enough sense.

the documentation also seems to say that i need at least one column to be set at the primary key, while i have a column with unique value i don't have it set at primary key, and again i also don't know how to implement that. i was hoping it would be as simple as 4 to 6 lines of code to return the value i wanted.