Addition of values of a column in a table as per condition

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I have a table Program.

it contains 3 columns
a).ID, b).AGENCY_NAME C) Marks

Now i want to add the marks of the column if "AGENCY_NAME" is similar, and then calculate the avg.
AGENCY_NAME CAN BE OF DIFFERENT TYPES

So mvc controller Code.

public ActionResult TrainingInstitute(String agenda_no = "")
      {
          DisplayLndRep dn = new DisplayLndRep();
          DbAccess da = new DbAccess();
          dn.FeedbackDetailList5=new List<lnd_prgm>();
          dn.FeedbackDetailList5 = da.FindInstiStdCount(agenda_no);
          dn.app_count = dn.FeedbackDetailList5.Count;
          if(dn.app_count>0)
          {
           dn.ListArcGrid = new List<ReportLndFeedback>();
           dn.FeedbackDetailList4 = da.FindInstiPgmTypCount(agenda_no);
           dn.pg1_count = dn.FeedbackDetailList4.Count();
           dn.pg2_count = dn.app_count - dn.pg1_count;
           dn.score = da.FindTotalScore(agenda_no);
          //    dn.ListArcGrid = new List<ReportLndFeedback>();
        //   dn.ListTReports = da.FindTReports();

          //dn.AgendaDetailList = new List<AgendaDetails>();
          dn.PageSize = 10;
          }

          else
          {
              TempData["notice"] = "There is no such record for Training Institute." + agenda_no;
              return RedirectToAction("ReportModule", "Home");
          }

          return View(dn);
      }

PROBLEM I AM FACING IS HOW TO DEFINE THE FOLLOWING FUNCTION SO
DEFINIFTION FOR

FindTotalScore

. I Am not able to develop this logic to calcute the total marks.

public List<lnd_prgm> FindTotalScore(string searchField)
{
    context.Configuration.AutoDetectChangesEnabled = false;
    context.Configuration.LazyLoadingEnabled = false;
    List<lnd_prgm> rLst = new List<lnd_prgm>();
    searchField = searchField.ToLower();
    int i;

    rLst = (from c in context.lnd_prgm.Where(x => x.agency_name == searchField) orderby c.prgm_id select c).ToList();

    for (int i = 0; i < rLst.Count; i++)
    {
        i = i + rLst[i].pgm_avg;
    }
    return rLst;
}

What I have tried:

not able to code the function to calculate and then display.

Posted 14-May-19 1:07am

Member 14330973

Updated 17-Jun-19 1:44am

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Maciej Los · Answer 1 · 2019-06-17T01:44:00

You're using exact match:

C#

rLst = (from c in context.lnd_prgm.Where(x => x.agency_name == searchField) orderby c.prgm_id select c).ToList();

But, if i understand you well, you want to get agencies with similar names (usage of SQL Like "%whatever%" operator):

C#

rLst = (from c in context.lnd_prgm.Where(x => x.agency_name.Contains(searchField)) orderby c.prgm_id select c).ToList();
//lambda version:
//rLst = context.lnd_prgm
//        .Where(x => x.agency_name.Contains(searchField))
//        .OrderBy(x=>x.prgm_id)
//        .ToList()

For further details, please see: Enumerable.Contains Method (System.Linq) | Microsoft Docs[^]