c# - Sort linq query result, when it has "First() and into Group" - 


var qrylatestinterview = rows in dt.asenumerable()                                                               group rows new                           {                             positionid = rows["msbf_acc_cd"],                             candidateid = rows["msbf_fac_tp"]                           } grp                          select grp.first();

i want sort above results using msbf_fac_dt datetime column,

so did following changes 

var qrylatestinterview = rows in dt.asenumerable()                          orderby rows["msbf_fac_dt"] ascending                          group rows new                           {                            positionid = rows["msbf_acc_cd"],                             candidateid = rows["msbf_fac_tp"],                             facilitydate = rows["msbf_fac_dt"]                           } grp                          select grp.first();

but not sort above msbf_fac_dt column , can here

you can order group before selecting first record:

var qrylatestinterview = rows in dt.asenumerable()                          group rows new                          {                              positionid = rows["msbf_acc_cd"],                              candidateid = rows["msbf_fac_tp"],                          } grp                          select grp.orderby(x=> x["msbf_fac_dt"]).first();

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