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How to get the previous URL in JavaScript?
...l to use one of the normal session management techniques: cookie data, URL params, or server side session info.
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Set the maximum character length of a UITextField
... class has no max length property, it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method:
Objective-C
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)s...
How do I convert Word files to PDF programmatically? [closed]
...ow you to convert .doc files to .pdf files, but they're all of the application/printer driver variety, with no SDK attached.
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How do I set environment variables from Java?
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This limitation of java is a little bit of a cop out. There is no reason for java not letting you set env vars other than "because we don't want java to do this".
– IanNorton
Feb 27 '17 at 9:01
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“unrecognized selector sent to instance” error in Objective-C
I created a button and added an action for it, but as soon as it invoked, I got this error:
38 Answers
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Assign an initial value to radio button as checked
...id html, but if you needed to do this in MVC you can set true in the third param.
eg:
<p>Option One :@Html.RadioButton("options", "option1", true})</p>
// true will set it checked
<p>Option Two :@Html.RadioButton("options", "option2"})</p>
//nothing will ...
CSV file written with Python has blank lines between each row
...each \n into \r\n.
In Python 3 the required syntax changed (see documentation links below), so open outfile with the additional parameter newline='' (empty string) instead.
Examples:
# Python 2
with open('/pythonwork/thefile_subset11.csv', 'wb') as outfile:
writer = csv.writer(outfile)
# Pyt...
How set background drawable programmatically in Android
...urned
* drawable will be styled for the specified Context's theme.
*
* @param id The desired resource identifier, as generated by the aapt tool.
* This integer encodes the package, type, and resource entry.
* The value 0 is an invalid identifier.
* @return Drawable An obj...
How to write lists inside a markdown table?
... answered Nov 14 '13 at 11:52
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Vibrate and Sound defaults on notification
...because there's is a small chance of user device use Color(RGB) for a ARGB param and you will get the wrong color. This Happened with me.
– Beto Caldas
Oct 24 '14 at 19:47
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