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C# How can I check if a URL exists/is valid?
...
// fine, no content downloaded
string s1 = client.DownloadString("http://google.com");
// throws 404
string s2 = client.DownloadString("http://google.com/silly");
}
You would try/catch around the DownloadString to check for errors; no error? It exists...
With C# 2.0 (VS2005):
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Should MySQL have its timezone set to UTC?
Follow up question of
https://serverfault.com/questions/191331/should-servers-have-their-timezone-set-to-gmt-utc
4 Answers...
How to get a file or blob from an object URL?
...the best/only way to do this is with an async xhr2 call:
var xhr = new XMLHttpRequest();
xhr.open('GET', 'blob:http%3A//your.blob.url.here', true);
xhr.responseType = 'blob';
xhr.onload = function(e) {
if (this.status == 200) {
var myBlob = this.response;
// myBlob is now the blob that th...
Can you center a Button in RelativeLayout?
..."
Exactly like this, it works for me:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ff0000">
<Button
andro...
PHP session lost after redirect
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switching between http andn https might be also be an issue stackoverflow.com/questions/441496/…
– dev.e.loper
Jan 30 '14 at 17:12
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Loadbalancing web sockets
... a 2 core, 4GB RAM VM.
Also note that you can do L7 load-balancing on the HTTP path announced during the initial WebSocket handshake. In that case the load balancer has to maintain state (which source IP-port pair is going to which backend node). It will probably scale to millions of connections ne...
Force HTML5 youtube video
... to add the html5=1 in the src attribute of the iframe :
<iframe src="http://www.youtube.com/embed/dP15zlyra3c?html5=1"></iframe>
The video will be displayed as HTML5 if available, or fallback into flash player.
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Using .otf fonts on web browsers
...font-style: normal;
font-weight: normal;
src: local('Tangerine'), url('http://example.com/tangerine.ttf') format('truetype');
}
body {
font-family: 'Tangerine', serif;
font-size: 48px;
}
This works cross browser with .ttf, I believe it may work with .otf. (Wikipedia says .otf is mostly bac...
Node.js Web Application examples/tutorials [closed]
... out the various tutorials that are coming out lately. My current fav is:
http://nodetuts.com/
Hope this helps.
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quality="high" wmode="transparent" allowscriptaccess="always" type="application/x-shockwave-flash">
config参数url解...