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Has an event handler already been added?
...t, and then register again, even if the handler is not registered at all:
myClass.MyEvent -= MyHandler;
myClass.MyEvent += MyHandler;
Note that doing this every time you register your handler will ensure that your handler is registered only once.
Sounds like a pretty good practice to me :)
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Count the number of commits on a Git branch
...it rev-list --count HEAD ^develop includes many more commits, 678 vs 97 on my current project.
My commit history is linear on this branch, so YMMV, but it gives me the exact answer I wanted, which is "How many commits have I added so far on this feature branch?".
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Convert Data URI to File then append to FormData
...
After playing around with a few things, I managed to figure this out myself.
First of all, this will convert a dataURI to a Blob:
function dataURItoBlob(dataURI) {
// convert base64/URLEncoded data component to raw binary data held in a string
var byteString;
if (dataURI.split(',...
How to let PHP to create subdomain automatically for each user?
How do I create subdomain like http://user.mywebsite.com ? Do i have to access htaccess somehow? Is it actually simply possible to create it via pure php code or I need to use some external script-server side language?
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Run batch file as a Windows service
...g our backup service. It works like a charm.
– music2myear
Mar 23 '12 at 20:24
1
this is the best...
How can I make a .NET Windows Forms application that only runs in the System Tray?
...ion.SetCompatibleTextRenderingDefault(false);
Application.Run(new MyCustomApplicationContext());
}
}
public class MyCustomApplicationContext : ApplicationContext
{
private NotifyIcon trayIcon;
public MyCustomApplicationContext ()
{
// Initialize Tray Icon
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error, string or binary data would be truncated when trying to insert
...d be truncated
Think to yourself... The field is NOT big enough to hold my data.
Check the table structure for the customers table. I think you'll find that the length of one or more fields is NOT big enough to hold the data you are trying to insert. For example, if the Phone field is a varcha...
Android Facebook style slide
... navigation is so cool. I was just trying to see how it can be emulated in my application.
25 Answers
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GitHub README.md center image
... have to use inline css to solve the problem. You can take an example from my github repo. At the bottom of README.md there is a centered aligned image. For simplicity you can just do as follows:
<p align="center">
<img src="http://some_place.com/image.png" />
</p>
Although, as ...
“The certificate chain was issued by an authority that is not trusted” when connecting DB in VM Role
I am experiencing error when connecting MY DB which is in VM Role(I have SQL VM Role) from Azure Website. Both VM Role and Azure Website are in West zone. I am facing following issue:
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