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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...
Do HttpClient and HttpClientHandler have to be disposed between requests?
...hat you read the HttpClient chapter from Designing Evolvable Web APIs with ASP.NET for context on what is going on under the hood, particularly the "Lifecycle" section quoted here:
Although HttpClient does indirectly implement the IDisposable
interface, the standard usage of HttpClient is not ...
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
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Using VS 2012 with an ASP.NET MVC 4 project and after re-targeting the .NET Framework from 4.0 to 4.5, I executed update-package -reinstall in Package Manager Console. All packages started to be uninstalled and updated and all of a sudden Windows ...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...ed and new functions together. Why? See: w3schools.com/jsref/jsref_escape.asp
– Leif
Dec 14 '14 at 13:41
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LINQ-to-SQL vs stored procedures? [closed]
... seen anyone here mention code reuse. You can't reuse you linq in a VB6 or asp or file maker pro app. If you put something in the database then it can be reused EVERYWHERE. You could make a dll with linq in it I guess but that is getting overly complicated and crappy imo. Adding a function or stored...
C# vs C - Big performance difference
...e interesting reading here: blogs.msdn.com/ricom/archive/2005/05/10/416151.aspx
– Daniel Earwicker
Mar 26 '09 at 16:57
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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...
How and when to use ‘async’ and ‘await’
...ed when just using async, await. msdn.microsoft.com/en-us/library/mt674882.aspx Please somebody correct the answer. Due to this i wasted one whole day.
– Krishna Deepak
Aug 15 '16 at 23:35
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How do I set a cookie on HttpClient's HttpRequestMessage
... Kimi is correct, but also you should not wrap your HttpClient in a using. aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong
– Robert McLaws
Sep 14 '16 at 18:42
9
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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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