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SqlException from Entity Framework - New transaction is not allowed because there are other threads
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Indeed you cannot save changes inside a foreach loop in C# using Entity Framework.
context.SaveChanges() method acts like a commit on a regular database system (RDMS).
Just make all changes (which Entity Framework will cache) and then save all of them at once calling SaveChang...
Nullable type issue with ?: Conditional Operator
Could someone explain why this works in C#.NET 2.0:
5 Answers
5
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Why use strong named assemblies?
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What is content-type and datatype in an AJAX request?
...ess" and value of true. I can't guess what your API's framework is, but in C# on ASP.NET MVC it would be something as simple as [HttpPost]public JsonResult user(Person postedPerson) { /* Save postedPerson to DB */ return Json(new { success = true }); }
– Joe Enos
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Is it bad practice to return from within a try catch finally block?
... not present in Java (but I think the restriction is a good one - kudos to C#).
– Lawrence Dol
Jan 16 '09 at 1:03
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Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...y.
That specific warning "LF will be replaced by CRLF" comes from convert.c#check_safe_crlf():
if (checksafe == SAFE_CRLF_WARN)
warning("LF will be replaced by CRLF in %s.
The file will have its original line endings
in your working directory.", path);
else /* i.e. SAFE_CR...
How can I open Windows Explorer to a certain directory from within a WPF app?
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What is the 'CLSCompliant' attribute in .NET?
... other consumers of your code that it is CLS compliant, and also makes the C# compiler check that it's CLS compliant for you.
The referenced article contains a lot more detail about what CLS compliance entails.
share
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Guid.NewGuid() vs. new Guid()
... type that doesn't set everything to zero and null, but you can't do it in C#, and the rules about when it will be called and when there will just be an all-zero struct created are confusing, so it's not a good idea anyway.
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How to create a WPF Window without a border that can be resized via a grip only?
...ult non xaml solutions, all the solutions that I found were code behind in C# and lots of code lines, I found indirectly the solution here: Maximum custom window loses drop shadow effect
<WindowChrome.WindowChrome>
<WindowChrome
CaptionHeight="0"
ResizeBorderThickness=...