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How to clear the canvas for redrawing
After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this?
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How to unzip files programmatically in Android?
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Had peno's version optimised a bit. The increase in performance is perceptible.
private boolean unpackZip(String path, String zipname)
{
InputStream is;
ZipInputStream zis;
try
{
String filename;
is = new FileI...
Is there a standard sign function (signum, sgn) in C/C++?
I want a function that returns -1 for negative numbers and +1 for positive numbers.
http://en.wikipedia.org/wiki/Sign_function
It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere.
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How can I concatenate two arrays in Java?
...follow
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edited May 30 '19 at 13:32
community wiki
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How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
...lled when that last name is used as the search term (which happens to be quite often now). The error received (thanks Fiddler!) is:
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REST URI convention - Singular or plural name of resource while creating it
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The premise of using /resources is that it is representing "all" resources. If you do a GET /resources, you will likely return the entire collection. By POSTing to /resources, you are adding to the collection.
However, the individual resources are available at /re...
How to automatically select all text on focus in WPF TextBox?
If I call SelectAll from a GotFocus event handler, it doesn't work with the mouse - the selection disappears as soon as mouse is released.
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Best practices for styling HTML emails [closed]
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Campaign Monitor have an excellent support matrix detailing what's supported and what isn't among various mail clients.
You can use a service like Litmus to view how an email appears across several clients and whether they get caught by...
What are OLTP and OLAP. What is the difference between them?
...m don't give me an idea, or my knowledge is too insufficient to understand it.
5 Answers
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How to completely remove a dialog on close
When an ajax operation fails, I create a new div with the errors and then show it as a dialog. When the dialog is closed I would like to completely destroy and remove the div again. How can I do this? My code looks something like this at the moment:
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