Ist es möglich, Linq zu einem Preis zu formatieren

Question

Ich verwende C# MVC. Ich habe eine Klasse, die Linq verwendet, um eine CSV-Excel-Datei zu exportieren, und ich würde gerne eine Spalte als Preis statt nur als Dezimalzahl mit einem möglichen unendlichen Betrag von Nullen formatieren.

EDIT

Controller:

public ActionResult Summary() 
     { 
      _logger.Debug("Request made for File."); 

      var currentYearSetup = _db.GetYearSetupForMostRecentOrCurrentReportingPeriod(); 
      var types = _db.GetAnimalTypes().ToArray(); 
      var rows = _db.GetSummaryRows(); 
      var file = _sm.CreateSummaryFile(rows); 
      var filename = String.Format("Summary_{0}.csv", DateTime.Now.ToString("yyyy_MM_dd__HH_mm")); 
      _logger.DebugFormat("Serving {0}", filename); 
      return File(file, System.Net.Mime.MediaTypeNames.Application.Octet, filename); 
     } 

IRepository:

IEnumerable<SummaryRow> GetSummaryRows(); 

Repository:

public IEnumerable<SummaryRow> GetSummaryRows() 
     { 
      var thing = _db.YearSetups.Select(i => new 
      { 
       Year = i.Name, 
       Transfer = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("T")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 

        .Sum(bps => (decimal?)bps.Amount) ?? 0, 
      }); 

      return _db.YearSetups.Where(y => _db.BatchPaymentSplits.Select(bps => bps.YearSetupId).Contains(y.YearSetupId)) 
      .Select(i => new 
      { 
       Year = i.Name, 
       Deposit = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("C") || b.BatchTypeId.Equals("E") || b.BatchTypeId.Equals("M")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 
        .Sum(bps => (decimal?)bps.Amount) ?? 0, 
       Transfer = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("T")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 

        .Sum(bps => (decimal?)bps.Amount) ?? 0, 
       NSF = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("N")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 

        .Sum(bps => (decimal?)bps.Amount) ?? 0, 
       BankCorrection = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("B")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 

        .Sum(bps => (decimal?)bps.Amount) ?? 0, 
       Reverse = _db.BatchPaymentSplits 
        .Where(bps => bps.YearSetupId == i.YearSetupId) 
        .Where(bps => bps.CustomerIdEntered != null) 
        .Where(bps => _db.BatchPayments 
         .Where(bp => _db.Batches.Where(b => b.BatchTypeId.Equals("R")) 
               .Select(b => b.BatchId) 
               .Contains(bp.BatchId) 
         ) 
         .Select(bp => bp.BatchPaymentId).Contains(bps.BatchPaymentId) 
        ) 

        .Sum(bps => (decimal?)bps.Amount) ?? 0, 

      }).AsEnumerable().Select(r => new PaymentTransactionSummaryRow() { 
       Year = r.Year, 
       DepositedRaw = r.Deposit, 
       TransferedRaw = r.Transfer, 
       NSFRaw = r.NSF, 
       BankCorrectionRaw = r.BankCorrection, 
       ReversedRaw = r.Reverse, 
      }); 
     } 

Answer 1

Es ist ein bisschen schwer, etwas über Ihre Struktur zu sagen, ohne dass Sie Buchung irgendein Code. Aber die folgenden zeigt, wie Sie int auf einen Währungsstring umwandeln kann:

var intArray = new[] {3,5,6,7}; 
var currencyArray = intArray.Select(x => x.ToString("C")); 

Es gibt mir:

kr. 3,00 
kr. 5,00 
kr. 6,00 
kr. 7,00