Question

I’m trying to find, then update, a specific DataRow in a DataTable. I’ve tried a few things based on my searches, and the code below seems to be the closest I can get. The linq will return one row. With that row, I’d like to update column values (Status, StopTime, Duration). I can’t for the life of me find how to do this.. I’ve tried casting, but I’m new to linq and don’t see how to update these values.

private DataTable downloadProcStatusTable;

void UpdateDataDownloadProcedureList(ProcedureStats ProcStats)          
{
      var currentStatRow = from currentStat in downloadProcStatusTable.AsEnumerable()
                           where currentStat.Field<String>("ProcedureName") == ProcStats.ProcName
                           select currentStat;
}

Answer 1

Your query as it stands actually gives you an IEnumerable<DataRow>. You need to do this to get the actual row:

  var currentStatRow = (from currentStat in downloadProcStatusTable.AsEnumerable()
                       where currentStat.Field<String>("ProcedureName") == ProcStats.ProcName 
                       select currentStat).SingleOrDefault(); 

You should then be able to use the currentStatRow variable to modify the column values.