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Insert auto increment primary key to existing table
...a into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it manually). Any thoughts? Thanks a lot.
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java.lang.IllegalStateException: The specified child already has a parent
...ing the return statement should solve your problem.
You can keep the code and return the view if you don't want to regenerate view data, and onDestroyView() method you remove this view from its parent like so:
@Override
public void onDestroyView() {
super.onDestroyView();
i...
How to debug a GLSL shader?
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Why would you want to debug anything? Because its code and he wants to examine run time values I would hazard....
– RichieHH
Aug 31 '15 at 10:57
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In C#, how to check if a TCP port is available?
...ctionInformation objects, which you can then interrogate about endpoint IP and port.
int port = 456; //<--- This is your value
bool isAvailable = true;
// Evaluate current system tcp connections. This is the same information provided
// by the netstat command line application, just in .Ne...
How to detect my browser version and operating system using JavaScript?
I have tried using the code below but it only display results in Chrome and Mozilla not working in IE6.
10 Answers
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embedding image in html email
...ttempts have failed, with the image showing up as a red X (in Outlook 2007 and yahoo mail)
14 Answers
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scp or sftp copy multiple files with single command
...te server in different directories.
For example, I want to run these 4 commands at once.
15 Answers
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How can I fill a div with an image while keeping it proportional?
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If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you.
.fill {
display: flex;
justify-content: center;
align-it...
How do I get out of a screen without typing 'exit'?
I screen -r 'd into a django server that's running and I can't simply Ctrl-C and exit out of it.
5 Answers
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
... system, /dev/stdout is world-readable symlink to /dev/fd/1 which is owned and read+writeable by my user.
– Patrick
Jul 29 '14 at 19:06
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