linq to fetch index of string array

Question

User946151542 posted

var _Col_Name_lst = (from DataColumn x in _hdr[0].Table.Columns
                                        select x.ColumnName).ToArray();

_Col_Name_lst  ----- This has a collection of string array

like

0  - EMl

1  - AZEER

2 -  VISTA

--------

Here in above collection, i require array index of EMI or AZEER or VISTA whichever i pass to a linq.

so using linq on above collection --- "_Col_Name_lst "

i require index of any values EMI or AZEER or VISTA whichever i pass

    var _Col_Name = from col in _Col_Name_lst
                                  where col == ("EML_power")
                                  select col.IndexOf("EML_power");

Answer 1

User-68639941 posted

hi, refer below code

int index = Array.IndexOf(_Col_Name_lst, "AZEER");

Answer 2

User946151542 posted

using linq , i require to find index id

Answer 3

User-1910946339 posted

Using IndexOf seems reasonable to me but if you really want a linq solution then try

int theIndex = _hdr[0].Table.Columns.Select((col, idx)=> new {idx, col.ColumnName}).Single(p=>p.ColumnName=="EMI").idx;