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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
... work for a ForeignKey field, a few changes need to be made. Firstly, the SELECT HTML tag does not have the readonly attribute. We need to use disabled="disabled" instead. However, then the browser doesn't send any form data back for that field. So we need to set that field to not be required so...
Creating a segue programmatically
...s, call that method when the appropriate button is clicked or table row is selected or whatever.
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IISExpress returns a 503 error from remote machines
... One more hint: If you right-click on IISExpress' systray icon, you can select "Show all applications" which will open up a dialog showing all applications you're currently running locally. Right-click on the desired application (don't left-click or it will open the browser), then you will see "P...
plupload图片上传插件的使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...工作
multipart_params： 跟 multipart关联在一起的键值
multi_selection： 多选对话框
resize：修改图片属性 resize: {width: 320, height: 240, quality: 90}
runtimes:上传插件初始化选用那种方式的优先级顺序，如果第一个初始化失败就走第二个，依...
How can I parse a string with a comma thousand separator to a number?
... I have no idea why this answer got so many upvotes and was selected as correct, it has two serious issues. 1. It cannot handle numbers with multiple commas, e.g. parseFloat("2,000,000.00".replace(',','')) returns 2000 and 2. it fails in many regions of the world where , is a decimal ...
What's the difference between `on` and `live` or `bind`?
...emoved and only on and one will be left.
Examples:
// Using live()
$(".mySelector").live("click", fn);
// Equivalent `on` (there isn't an exact equivalent, but with good reason)
$(document).on("click", ".mySelector", fn);
// Using bind()
$(".mySelector").bind("click", fn);
// Equivalent `on`...
FileSystemWatcher Changed event is raised twice
...<FileSystemEventArgs>(fileSystemWatcher, "Renamed") .Select(e => e.EventArgs) .Distinct(e => e.FullPath) .Subscribe(onNext);
– Kjellski
Oct 24 '14 at 15:55
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Google OAuth 2 authorization - Error: redirect_uri_mismatch
...update redirect URIs.
Go to https://console.developers.google.com
Select your Project
Click on the menu icon
Click on API Manager menu
Click on Credentials menu. And under OAuth 2.0 Client IDs, you will find your client name. In my case, it is Web Clie...
Python argparse: Make at least one argument required
...tiple aspects of command line based program:
good design of command line
selecting/using proper parser
argparse offers a lot, but restricts possible scenarios and can become very complex.
With docopt things go much shorter while preserving readability and offering high degree of flexibility. If...
When is each sorting algorithm used? [closed]
...s O(N^2), it has a very small constant and is a stable sort.
Bubble sort, selection sort: When you're doing something quick and dirty and for some reason you can't just use the standard library's sorting algorithm. The only advantage these have over insertion sort is being slightly easier to impl...