Formula like vlookup

Hi,

I need to have the Code1  for each row.  A row has an Line id, the parent id, and the line level (1 to 3).

Line with level 1 has a code, and I need to have the code for each line into code1.

With excel I am using a vlookup formula and could not find the same thing with Power BI. If somebody has the start of a solution it will be nice.

Thanks in advance

Idlig Idparent Level Code Code1
1                       1     AAA
2           1          2
3           1          2
4           2          3