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How do I make a textbox that only accepts numbers?
I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...
How do you get a query string on Flask?
...ing itself. "Query string" means everything after the question mark and before the pound sign, if one is present.
– Lyndsy Simon
Aug 2 '12 at 16:32
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Determine if an object property is ko.observable
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Knockout has the following function which I think is what you are looking for:
ko.isObservable(vm[key])
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Foreign Key naming scheme
I'm just getting started working with foreign keys for the first time and I'm wondering if there's a standard naming scheme to use for them?
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What is __init__.py for?
What is __init__.py for in a Python source directory?
12 Answers
12
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javascript: Clear all timeouts?
... that will identify the timeout to be set by this call." which leaves room for the handle to be any positive integer including non-consecutive and non-small integers.
– Mike Samuel
Jan 14 '12 at 4:59
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Dashed line border around UIView
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Jonguo For example, if you add any image with proper resolution like suppose your normal image size is 120x120 and it's name is test.png then create another two image with name test@2x.png and test@3x.png with size of 240x240 and 36...
Cross-Origin Request Headers(CORS) with PHP headers
...restrictive, but this gives you
* the general idea of what is involved. For the nitty-gritty low-down, read:
*
* - https://developer.mozilla.org/en/HTTP_access_control
* - http://www.w3.org/TR/cors/
*
*/
function cors() {
// Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])...
Getting Django admin url for an object
Before Django 1.0 there was an easy way to get the admin url of an object, and I had written a small filter that I'd use like this: <a href="{{ object|admin_url }}" .... > ... </a>
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How does Trello access the user's clipboard?
...ner"><textarea id="clipboard"></textarea></div>
CSS for the clipboard stuff:
#clipboard-container {
position: fixed;
left: 0px;
top: 0px;
width: 0px;
height: 0px;
z-index: 100;
display: none;
opacity: 0;
}
#clipboard {
width: 1px;
height: 1px;
pad...