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Accessing UI (Main) Thread safely in WPF
... example:
class MyViewModel
{
private readonly SynchronizationContext _syncContext;
public MyViewModel()
{
// we assume this ctor is called from the UI thread!
_syncContext = SynchronizationContext.Current;
}
// ...
private void watcher_Changed(object send...
The key must be an application-specific resource id
... add this to your strings.xml file: <item type="id" name="TAG_ONLINE_ID"/> and you can use like a regular id resource: R.id.TAG_ONLINE_ID
– EtienneSky
Dec 23 '11 at 8:10
...
How do I unload (reload) a Python module?
...lib import reload
import foo
while True:
# Do some things.
if is_changed(foo):
foo = reload(foo)
In Python 3, reload was moved to the imp module. In 3.4, imp was deprecated in favor of importlib, and reload was added to the latter. When targeting 3 or later, either reference the...
Bypass popup blocker on window.open when JQuery event.preventDefault() is set
...
For me, I added a link with target="_blank" to prompt the user to click.
– hiroshi
Apr 20 '12 at 7:14
1
...
How to implement a ConfigurationSection with a ConfigurationElementCollection
...ypeof(CustomApplicationConfigSection));
public const string SECTION_NAME = "CustomApplicationConfig";
[ConfigurationProperty("Credentials")]
public CredentialsConfigElement Credentials
{
get
{
return base["Credentials"] as Cred...
Check if a variable is of function type
...
Underscore.js uses a more elaborate but highly performant test:
_.isFunction = function(obj) {
return !!(obj && obj.constructor && obj.call && obj.apply);
};
See: http://jsperf.com/alternative-isfunction-implementations
EDIT: updated tests suggest that typeof ...
What are the rules for calling the superclass constructor?
...:
class A : public B
{
public:
A(int a, int b, int c);
private:
int b_, c_;
};
Then, assuming B has a constructor which takes an int, A's constructor may look like this:
A::A(int a, int b, int c)
: B(a), b_(b), c_(c) // initialization list
{
// do something
}
As you can see, the con...
Error starting jboss server
...tion. Did you change your JRE version when you reinstalled, say from 1.6.0_17 to _18?
Anyway, the workaround is described in the JIRA issue, and also here. You need to change the content of conf/bootstrap/profile.xml. Look for the definition of the AttachmentStore, and change the constructor line ...
C语言判断文件是否存在 - C/C++ - 清泛网 - 专注C/C++及内核技术
... <stdlib.h>
void main( void )
{
/* Check for existence */
if( (_access( "ACCESS.C", 0 )) != -1 )
{
printf( "File ACCESS.C exists\n" );
/* Check for write permission */
if( (_access( "ACCESS.C", 2 )) != -1 )
printf( "File ACCESS.C has write permission\n"...
Correct way to write line to file?
...
This should be as simple as:
with open('somefile.txt', 'a') as the_file:
the_file.write('Hello\n')
From The Documentation:
Do not use os.linesep as a line terminator when writing files opened in text mode (the default); use a single '\n' instead, on all platforms.
Some useful re...