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Keeping ASP.NET Session Open / Alive
...HttpContext context)
{
context.Session["Heartbeat"] = DateTime.Now;
}
}
The key is to add IRequiresSessionState, otherwise Session won't be available (= null). The handler can of course also return a JSON serialized object if some data should be returned to the calling JavaScript.
...
How to use shared memory with Linux in C
...
Haha I know what you mean, but it's actually because we're not used to reading manpages. When I learned to read them and got used to them, they became even more useful than lousy tutorials with particular demonstrations. I remember I...
Clear icon inside input text
...ble).
jQ will add the class x (if input has value) showing the clear icon.
Now all we need is to target with jQ the inputs with class x and detect on mousemove if the mouse is inside that 18px "x" area; if inside, add the class onX.
Clicking the onX class removes all classes, resets the input value ...
Redirecting EC2 Elastic Load Balancer from HTTP to HTTPS
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AWS Application Load Balancers now support native HTTP to HTTPS redirect.
To enable this in the console, do the the following:
Go to your Load Balancer in EC2 and tab "Listeners"
Select "View/edit rules" on your HTTP listener
Delete all rules except for...
How do popular apps authenticate user requests from their mobile app to their server?
...rios are possible, but we will not enumerate each one here.
I hope that by now you may already have a clue why the WHO and the WHAT are not the same, but if not it will become clear in a moment.
The WHO is the user of the mobile app that we can authenticate, authorize and identify in several ways, l...
How does grep run so fast?
...ality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though)
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Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
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@DD: D'oh, fixed now. It needs 2 layers of indirection, not 1.
– Adam Rosenfield
Oct 20 '09 at 21:04
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Should the hash code of null always be zero, in .NET
...m, either re-implement the hash code to return non-zero, add a default "unknown" enum entry equivalent to null, or simply don't use nullable enums.
Interesting find, by the way.
Another problem I see with this generally is that the hash code cannot represent a 4 byte or larger type that is nullabl...
AngularJS changes URLs to “unsafe:” in extension page
...for white listing the image screen shots i am capturing with html2canvas , now there is no error that says unsafe:data; but the image is not getting captured. Any idea what regular expression i shall use ? I am capturing a image/png as base64 url. Now the html looks like : <img ng-src="data:," cl...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...en using core.autocrlf, the bogus "LF
will be replaced by CRLF" warning is now suppressed.
As quaylar rightly comments, if there is a conversion on commit, it is to LF only.
That specific warning "LF will be replaced by CRLF" comes from convert.c#check_safe_crlf():
if (checksafe == SAFE_CRLF_WA...