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How do you run a crontab in Cygwin on Windows?
Some cygwin commands are .exe files, so you can run them with the standard Windows Scheduler, but others don't have an .exe extension so can't be run from DOS (it seems like).
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Extension methods cannot be dynamically dispatched
...ods, which is not supported.
Cast the dynamic types to actual types, and it will work.
From what I see now, I'd say:
(string) ViewBag.MagNo
Which would result in
@foreach (var item in Model)
{
@Html.DropDownListFor(modelItem => item.TitleIds,
new SelectList(ViewBag.TitleNames a...
Test if object implements interface
...safe way. For example:
if ("" instanceof java.io.Serializable) {
// it's true
}
yields true. Since:
if (null instanceof AnyType) {
// never reached
}
yields false, the instanceof operator is null safe (the code you posted isn't).
instanceof is the built-in, compile-time safe al...
How to detect if multiple keys are pressed at once using JavaScript?
...ple keystroke detection is easy if you understand the concept
The way I do it is like this:
var map = {}; // You could also use an array
onkeydown = onkeyup = function(e){
e = e || event; // to deal with IE
map[e.keyCode] = e.type == 'keydown';
/* insert conditional here */
}
This code ...
CSS Font Border?
With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop?
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iPhone Keyboard Covers UITextField
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The usual solution is to slide the field (and everything above it) up with an animation, and then back down when you are done. You may need to put the text field and some of the other items into another view and slide the view as a unit. (I call these things "plates" as in "tectonic pl...
Remove Server Response Header IIS7
... be helpful if we don't have admin right to server. Also I don't want to write ISAPI filter.
20 Answers
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In C++, is it still bad practice to return a vector from a function?
Short version: It's common to return large objects—such as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination?
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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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(How) can I count the items in an enum?
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There's not really a good way to do this, usually you see an extra item in the enum, i.e.
enum foobar {foo, bar, baz, quz, FOOBAR_NR_ITEMS};
So then you can do:
int fuz[FOOBAR_NR_ITEMS];
Still not very nice though.
But of course you do realize that just the number of items in an enum ...