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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...on what you want to do and how would you like to do it?
If you are using ASP.NET MVC you can try to use UpdateModel or TryUpdateModel.
If you want just update existing children manually, you can simply do something like:
foreach (var child in modifiedParent.ChildItems)
{
context.Childs.Attac...
What are the rules for calling the superclass constructor?
... discussion at hand. For more info on the explicit key word, see: weblogs.asp.net/kennykerr/archive/2004/08/31/…
– luke
Sep 24 '08 at 12:38
1
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When to use thread pool in C#? [closed]
...msdn.com/pedram/archive/2007/08/05/dedicated-thread-or-a-threadpool-thread.aspx
The post also has some points on when you should not use the thread pool and start your own thread instead.
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i...
Why do some websites add “Slugs” to the end of URLs? [closed]
...I recently changed my website url format from:
www.mywebsite.com/index.asp?view=display&postid=100
To
www.mywebsite.com/this-is-the-title-of-the-post
and noticed that click through rates to article increased about 300% after the change. It certainly helps the user decide if what they...
How to find the kth largest element in an unsorted array of length n in O(n)?
...t element array') returned this: http://discuss.joelonsoftware.com/default.asp?interview.11.509587.17
"Make one pass through tracking the three largest values so far."
(it was specifically for 3d largest)
and this answer:
Build a heap/priority queue. O(n)
Pop top element. O(log n)
Pop top el...
How to use HTML to print header and footer on every printed page of a document?
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this works in all browsers and in asp (which has some crazy issue with page footers) Use this i say.
– DWolf
Jul 24 '13 at 15:34
17
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What is the best way to prevent session hijacking?
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hi, i m trying to prevent session hijacking (in ASP.NET)and considered all above steps u suggested. It is approximate working but when I use InPrivateBrowsing/incognito mode of browser the session is Hijacked. Can u please suggest any additional thing to add in sessionId s...
Entity Framework 4 vs NHibernate [closed]
...This answer is now outdated and should not be relied upon.
http://weblogs.asp.net/scottgu/archive/2012/07/19/entity-framework-and-open-source.aspx
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Why should I prefer single 'await Task.WhenAll' over multiple awaits?
... to multiple awaits): blogs.msdn.com/b/pfxteam/archive/2011/09/28/10217876.aspx
– Oskar Lindberg
Nov 21 '13 at 10:40
5
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How to retrieve form values from HTTPPOST, dictionary or?
...var1"];
}
You can also use a class, that is mapped with Form values, and asp.net mvc engine automagically fills it:
//Defined in another file
class MyForm
{
public string var1 { get; set; }
}
[HttpPost]
public ActionResult SubmitAction(MyForm form)
{
string var1 = form1.Var1;
}
...