この質問の言い方がよくわからないので、ご容赦ください。必要に応じて編集します。
私のコードから始めましょう:
var assetMonth = "assest."+Month;
var billableAssests = (from s in db.Assets
where s.SystemPosition == 1
select s).ToList();
try {
foreach (var assests in billableAssests)
{
assests.PreviousDateBilled = assests.LastDateBilled;
assests.LastDateBilled = today;
assetMonth = assests.MonthlyChargeRate; <===HERE
assests.RunnungLeaseTotal = assests.RunnungLeaseTotal + assests.MonthlyChargeRate;
if (assests.MonthBilled == null)
{
assests.MonthBilled = 1;
}
else
{
assests.MonthBilled = assests.MonthBilled + 1;
}
//db.Entry(billableAssests).State = EntityState.Modified;
db.SaveChanges();
}
}
ユーザーから請求したい月を取得し、その月の列に月額料金を挿入したいと考えています。私の人生でこれを行う方法がわかりません。何か提案があるか、どこから探し始めることができるか教えてください。
ありがとう!
EDIT*** テーブルのモデル
public class Asset
{
[Key]
public string AssetTag { get; set; }
public string SerialNumber { get; set; }
public int WarrantyPeriod { get; set; }
public string DeviceApprover { get; set; }
public int Dept_id { get; set; }
public string AssetLocation { get; set; }
public string DeliveryLocation { get; set; }
public int SectionKey { get; set; }
public int VendorKey { get; set; }
public int DeviceInformationKey { get; set; }
public int EmployeeKey { get; set; }
public decimal PurchasePrice { get; set; }
public decimal? BaseLeaseRate { get; set; }
public decimal? MonthlyChargeRate { get; set; }
public decimal? LeaseTotal { get; set; }
public int? MonthBilled { get; set; }
public DateTime? LeaseStartDate { get; set; }
public DateTime? LeaseEndDate { get; set; }
public decimal? RunnungLeaseTotal { get; set; }
public int deliveryEmployeeKey { get; set; }
public DateTime? InstallDate { get; set; }
public Boolean? Confirm { get; set; }
public string Status { get; set; }
public int? SystemPosition { get; set; }
public DateTime? LastDateBilled { get; set; }
public DateTime? PreviousDateBilled { get; set; }
public DateTime? ReturnedDate { get; set; }
public int Account { get; set; }
public decimal? Jan { get; set; }
public decimal? Feb { get; set; }
public decimal? Mar { get; set; }
public decimal? Apr { get; set; }
public decimal? May { get; set; }
public decimal? June { get; set; }
public decimal? July { get; set; }
public decimal? Aug { get; set; }
public decimal? Sept { get; set; }
public decimal? Oct { get; set; }
public decimal? Nov { get; set; }
public decimal? Dec { get; set; }
public virtual Section Section { get; set; }
public virtual Vendor Vendor { get; set; }
public virtual DeviceInformation DeviceInformation { get; set; }
public virtual Employee Employee { get; set; }