本文整理汇总了C#中Data.SaveChanges方法的典型用法代码示例。如果您正苦于以下问题：C# Data.SaveChanges方法的具体用法？C# Data.SaveChanges怎么用？C# Data.SaveChanges使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Data的用法示例。
在下文中一共展示了Data.SaveChanges方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: SeedNewsData
static void SeedNewsData(Data.NewsDB context)
{
context.News.AddRange(new[] {
new News("Митьо очите се прекръсти на Митьо Мехура"),
new News("Шведи откриват смисълът на живота, масони ги колят"),
new News("Германски крайно-десни формации на лов за емигранти"),
new News("Азис с нов клип в МТВ (Междугалактическа ТелеВизия)"),
new News("Путин ще представя Русия на Евровизия 2017"),
});
context.SaveChanges();
}示例2: UpdateNewsContent
static void UpdateNewsContent(Data.NewsDB context)
{
Console.Write("Enter id of the news you want to update: ");
int id = int.Parse(Console.ReadLine());
Console.Write("Enter new content: ");
string newContent = Console.ReadLine();
News newsToEdit = null;
try
{
newsToEdit = context.News
.Where(n => n.Id == id)
.First();
}
catch (InvalidOperationException)
{
Console.WriteLine("News with id {0} not found.", id);
return;
}
newsToEdit.Content = newContent;
context.SaveChanges();
Console.WriteLine("News ID {0} updated successfully.", id);
}示例3: processResponsesFromDataScope
protected override void processResponsesFromDataScope(Data.SymmetryEntities dc_, Data.MarketSnap saveToThisSnap_, string marketSnapCode_)
{
OutputToCSV(m_resultsFromDataScope);
if (m_resultsFromDataScope == null) return;
var config = BondDiscoveryConfig.GetInstance();
foreach (var response in m_resultsFromDataScope)
{
foreach (var row in response.Rows)
{
try
{
var isin = GetValueFromObjectArray<string>((int)FieldsToReturn.InstrumentID, row, ThrowBehavior.Throw);
var ric = GetValueFromObjectArray<string>((int)FieldsToReturn.TradewebRIC, row, ThrowBehavior.DontThrow);
var maturity = GetValueFromObjectArray<DateTime>((int)FieldsToReturn.Maturity, row, ThrowBehavior.Throw);
var description = GetValueFromObjectArray<string>((int)FieldsToReturn.Description, row, ThrowBehavior.Throw);
var currency = GetValueFromObjectArray<string>((int)FieldsToReturn.Currency, row, ThrowBehavior.DontThrow);
var coupon = GetValueFromObjectArray<double>((int)FieldsToReturn.Coupon, row, ThrowBehavior.Throw);
var auctionDate = GetValueFromObjectArray<DateTime?>((int)FieldsToReturn.AuctionDate, row, ThrowBehavior.DontThrow);
var effectiveDate = GetValueFromObjectArray<DateTime?>((int)FieldsToReturn.EffectiveDate, row, ThrowBehavior.DontThrow);
var firstCouponDate = GetValueFromObjectArray<DateTime?>((int)FieldsToReturn.FirstCouponDate, row, ThrowBehavior.DontThrow);
var issueDate = GetValueFromObjectArray<DateTime?>((int)FieldsToReturn.IssueDate, row, ThrowBehavior.DontThrow);
var series = GetValueFromObjectArray<string>((int)FieldsToReturn.Series, row, ThrowBehavior.DontThrow);
var term = GetValueFromObjectArray<int?>((int)FieldsToReturn.Term, row, ThrowBehavior.DontThrow);
var assetSubType = GetValueFromObjectArray<string>((int)FieldsToReturn.AssetSubType,row,ThrowBehavior.DontThrow);
var couponClass = GetValueFromObjectArray<string>((int) FieldsToReturn.CouponClassCode, row, ThrowBehavior.DontThrow);
var countryCode = GetValueFromObjectArray<string>((int) FieldsToReturn.CountryCode, row, ThrowBehavior.DontThrow);
var inflationFlag = GetValueFromObjectArray<string>((int)FieldsToReturn.InflationProtectedFlag,row,ThrowBehavior.DontThrow);
var floaterFlag = GetValueFromObjectArray<string>((int)FieldsToReturn.FloaterFlag,row,ThrowBehavior.DontThrow);
FIChangeTracking.DisableChangeTracking(ref dc_);
try
{
SLog.log.DebugFormat("Adding new bond to database with ISIN={0}", isin);
// create instrument
var fi = new FI
{
InstrumentType = InstrumentType.Bond,
Currency = currency,
DisplayName = description,
Maturity = maturity,
SymmetryCode = isin
};
dc_.FIs.Add(fi);
dc_.SaveChanges();
FIBondHelpers.SetOrUpdateIdentifier(fi, IdentifierType.ISIN, isin, dc_);
FIBondHelpers.SetOrUpdateIdentifier(fi, IdentifierType.RIC, ric, dc_);
FIBondHelpers.SetOrUpdateIdentifier(fi, IdentifierType.Bloomberg, string.Format("{0} Govt", isin), dc_);
dc_.SaveChanges();
// create bond
var fiBond = new FIBond
{
FIID = fi.FIID,
Coupon = Convert.ToDecimal(coupon),
EffectiveDate = effectiveDate,
FirstCouponDate = firstCouponDate,
AuctionDate = auctionDate,
IssueDate = issueDate,
Series = series,
Term = term,
Market = config == null ? assetSubType : config.GetMarket(countryCode, assetSubType),
IsFloater=floaterFlag!=null && String.Compare("Y", floaterFlag, StringComparison.OrdinalIgnoreCase)==0 ? 1 : 0,
IsInflationLinked = inflationFlag!=null && String.Compare("Y", inflationFlag, StringComparison.OrdinalIgnoreCase)==0 ? 1 : 0,
};
dc_.FIBonds.Add(fiBond);
dc_.SaveChanges();
}
finally
{
FIChangeTracking.EnableChangeTracking(ref dc_);
}
}
catch
{
continue; // a required value wasn't found
}
} // end inner for
} // end first for
}