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getViewTypeCount and getItemViewType methods of ArrayAdapter
... contacts application you may want even rows to have pictures on the left side and odd rows to have pictures on the right. In that case, you would use:
@Override
public int getViewTypeCount() {
return 2;
}
@Override
public int getItemViewType(int position) {
return position % 2;
}
The fr...
How to change the value of attribute in appSettings section with Web.config transformation
...ant something like:
<appSettings>
<add key="developmentModeUserId" xdt:Transform="Remove" xdt:Locator="Match(key)"/>
<add key="developmentMode" value="false" xdt:Transform="SetAttributes"
xdt:Locator="Match(key)"/>
</appSettings>
See Also: Web.config Transfor...
System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second
...nge the timer once the work has completed, not before. Example:
private void Callback( Object state )
{
// Long running operation
_timer.Change( TIME_INTERVAL_IN_MILLISECONDS, Timeout.Infinite );
}
Thus there is no need for locking mechanisms because there is no concurrency. The timer will...
font-style: italic vs oblique in CSS
...s... some fonts were meant not to be italicized or obliqued... but people did anyway. And as you may know, some operating systems will, upon clicking the 'italic' icon, skew the font and create an oblique on the fly. Not a pleasant sight.
It's best to specify an italic only when you're sure that fo...
What does the tilde before a function name mean in C#?
...by the user of the class. Finalize (destructor) are called by the GC.
The IDisposable interface tells the world that your class holds onto resources that need to be disposed and provides users a way to release them. If you do need to implement a finalizer in your class, your Dispose method should u...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
...ination
}
Sans one or two small optimizations - all the below is still valid.
Let's first discuss what it does and why that's faster and then why it works.
What it does
The V8 engine uses two object representations:
Dictionary mode - in which object are stored as key - value maps as a hash map.
Fa...
What does -fPIC mean when building a shared library?
...has something to do with resolving addresses and independence between individual modules, but I'm not sure what it really means. Can you explain?
...
Django - what is the difference between render(), render_to_response() and direct_to_template()?
...ntext and all its context_processors.
But direct_to_template should be avoided as function based generic views are deprecated. Either use render or an actual class, see https://docs.djangoproject.com/en/1.3/topics/generic-views-migration/
I'm happy I haven't typed RequestContext in a long, long ti...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
...
CDI is preferred over plain JSF because CDI allows for JavaEE-wide dependency injection. You can also inject POJOs and let them be managed. With JSF you can only inject a subset of what you can with CDI.
share
...
What does the 'standalone' directive mean in XML?
...nore any markup declarations in the DTD. The DTD is thereafter used for validation only.
As an example, consider the humble <img> tag. If you look at the XHTML 1.0 DTD, you see a markup declaration telling the parser that <img> tags must be EMPTY and possess src and alt attributes. When...