public T Update(T entity)
{
var result = dbContext.Set <T>().Attach(entity);
dbContext.Entry(entity).State = System.Data.Entity.EntityState.Modified; //xem lại
dbContext.SaveChanges();
return(result);
}
public ActionResult Edit([Bind(Include = "UserId,UserName,Password,Gender,Email,SecurityQuestion,SecurityAnswer,QQ,Tel,Address,PostCode,RegTime,LastLoginTime")] User user)
{
if (ModelState.IsValid)
{
db.Entry(user).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(user));
}
public ActionResult Edit([Bind(Include = "CategoryId,CategoryName")] Category category)
{
if (ModelState.IsValid)
{
db.Entry(category).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(category));
}
public ActionResult Edit([Bind(Include = "Id,Title,Producer,Date,Category,DEscription")] News news)
{
if (ModelState.IsValid)
{
db.Entry(news).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(news));
}
public ActionResult Edit([Bind(Include = "ID,Title,ReleaseDate,Text")] NewsViewModel newsViewModel)
{
if (ModelState.IsValid)
{
db.Entry(newsViewModel).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(newsViewModel));
}
public ActionResult Edit(Article article) //修改的时候提交的数据时一个类
{
if (ModelState.IsValid)
{
db.Entry(article).State = EntityState.Modified; // 修改
db.SaveChanges(); //保存
return(RedirectToAction("index"));
}
return(View("index"));
}
public ActionResult Edit([Bind(Include = "Id,TimeStamp,Text, RowVersion")] NewsItem newsItem)
{
if (ModelState.IsValid)
{
try
{
db.Entry(newsItem).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
} catch (DbUpdateConcurrencyException ex)
{
ModelState.AddModelError(string.Empty,
"Unable to save changes. The news was edited or deleted by another user.");
}
}
return(View(newsItem));
}
private static void CatchConcurrencyConflict(NewsDBContext context, New loadedEntity)
{
Console.WriteLine("Text from DB: {0}", loadedEntity.Content);
Console.WriteLine("Enter the corrected text:");
string newEntity = Console.ReadLine();
loadedEntity.Content = newEntity;
try
{
context.SaveChanges();
Console.WriteLine("Changes successfully saved in the DB.");
}
catch (DbUpdateConcurrencyException)
{
Console.WriteLine("Conflict!");
context.Entry(loadedEntity).Reload();
CatchConcurrencyConflict(context, loadedEntity);
}
}
public async Task <IActionResult> PutNews([FromRoute] int id, [FromBody] News news)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != news.NewsId)
{
return(BadRequest());
}
//I need to get the date from the context
//Datetime needs to be fixed.
DateTime today = new DateTime();
today = DateTime.Now;
news.UpdatedDate = today;
_context.Entry(news).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!NewsExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
