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Keeping ASP.NET Session Open / Alive

Which is the easiest and most unobstrusive way to keep an ASP.NET session alive as long as the user has the browser window open? Is it timed AJAX calls? I want to prevent the following: sometimes users keep their window open for a long time, then enter stuff, and on submit nothing works anymore beca...
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How can I convert immutable.Map to mutable.Map in Scala?

...gs factory. Unlike the ++ approach, this uses the CanBuildFrom mechanism, and so has the potential to be more efficient if library code was written to take advantage of this: val m = collection.immutable.Map(1->"one",2->"Two") val n = collection.mutable.Map(m.toSeq: _*) This works because...
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Extract traceback info from an exception object

...__ attribute that contains the traceback. This attribute is also writable, and can be conveniently set using the with_traceback method of exceptions: raise Exception("foo occurred").with_traceback(tracebackobj) These features are minimally described as part of the raise documentation. All credi...
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Parse query string into an array

... You want the parse_str function, and you need to set the second parameter to have the data put in an array instead of into individual variables. $get_string = "pg_id=2&parent_id=2&document&video"; parse_str($get_string, $get_array); print_r($g...
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Default profile in Spring 3.1

In my application I have beans annotated with @Profile("prod") and @Profile("demo") . The first one, as you can guess :), is used on beans that connect to production DB and second one annotates beans that use some fake DB ( HashMap or whatever)- to make development faster. ...
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How to disable Django's CSRF validation?

I have commented out csrf processor and middleware lines in settings.py : 9 Answers 9...
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Is there any reason for using WebGL instead of 2D Canvas for 2D games/apps?

...more platfrom-independant So I'll discuss the differences between canvas and webGL APIs regarding these qualities. Both canvas and webGL are JavaScript APIs. They are pretty much the same regarding integration (binding). They are both supported by a number of libraries that could speed up your ...
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What does [STAThread] do?

I am learning C# 3.5 and I want to know what [STAThread] does in our programs? 3 Answers ...
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No connection string named 'MyEntities' could be found in the application config file

I am using entity framework and ASP.NET MVC 4 to build an application 28 Answers 28 ...
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How do I join two lists in Java?

... It is ugly but at least its fluent and can be used without multi line lambdas. I really wish there was a fluent addAll that returned the concatinated list. – Usman Ismail Jan 11 '18 at 15:06 ...