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Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...
The data received in your serialPort1_DataReceived method is coming from another thread context than the UI thread, and that's the reason you see this error.
To remedy this, you will have to use a dispatcher as descibed in the MSDN article:
How to: Make Thread-S...
How do I pass command line arguments to a Node.js program?
...ice(2));
console.dir(argv);
-
$ node example/parse.js -a beep -b boop
{ _: [], a: 'beep', b: 'boop' }
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$ node example/parse.js -x 3 -y 4 -n5 -abc --beep=boop foo bar baz
{ _: [ 'foo', 'bar', 'baz' ],
x: 3,
y: 4,
n: 5,
a: true,
b: true,
c: true,
beep: 'boop' }
...
Merging objects (associative arrays)
...e:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
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Google Maps v3 - limit viewable area and zoom level
...});
// Limit the zoom level
google.maps.event.addListener(map, 'zoom_changed', function() {
if (map.getZoom() < minZoomLevel) map.setZoom(minZoomLevel);
});
</script>
</body>
</html>
Screenshot from the above example. The user will not be able to drag furt...
Check to see if python script is running
...stem is using domain sockets:
import socket
import sys
import time
def get_lock(process_name):
# Without holding a reference to our socket somewhere it gets garbage
# collected when the function exits
get_lock._lock_socket = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
try:
...
Do you use source control for your database items? [closed]
...-
ALTER TABLE migratorjobitems
DROP CONSTRAINT migratorjobitems_destcmaid_fkey;
--
-- Increment the version
UPDATE sys_info
SET value = '8.0.108'
WHERE key = 'DB VERSION';
END TRANSACTION;
EOF8.0.108
fi
if [ $VERSION \< '8.0.109...
'UserControl' constructor with parameters in C#
...ommend
public partial class MyUserControl : UserControl
{
private int _parm1;
private string _parm2;
private MyUserControl()
{
InitializeComponent();
}
public MyUserControl(int parm1, string parm2) : this()
{
_parm1 = parm1;
_parm2 = parm2;
...
Is it a good practice to use try-except-else in Python?
...nite result')
Another example occurs in unittest runners:
try:
tests_run += 1
run_testcase(case)
except Exception:
tests_failed += 1
logging.exception('Failing test case: %r', case)
print('F', end='')
else:
logging.info('Successful test case: %r', case)
print('.', end=...
What is an unsigned char?
... +1. But there are four distinct character types in C++, wchar_t is one of them.
– Eric Z
Aug 24 '13 at 9:19
12
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is there a require for json in node.js
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@coen yes, we always use __dirname to make relative paths.
– Raynos
Aug 23 '11 at 15:19
...