大约有 32,000 项符合查询结果（耗时：0.0451秒） [XML]
How do I update the GUI from another thread?
...null,
control,
new object[] { propertyValue });
}
}
Call it like this:
// thread-safe equivalent of
// myLabel.Text = status;
SetControlPropertyThreadSafe(myLabel, "Text", status);
If you're using .NET 3.0 or above, you could rewrite the above method as an extension method o...
Testing if jQueryUI has loaded
...
my problem is that I load jQuery and jQuery.ui dynamically. It sometimes loads in time, sometimes not. If ui is not loaded, how can I wait for it (or force it to be loaded) before calling any method?
– Gabriel Diaconescu
Sep 14 '11 at 10:10...
How to change a git submodule to point to a subfolder?
...eated a submodule out of the boto project . Then, I discovered that I actually need only a subset of this project - specifically, the boto folder.
...
Android webview & localStorage
... I tested on the Samsung Galaxy SII there was this problem. I'm not saying all devices are working so, just some device have it.
– mr.boyfox
Jun 18 '14 at 12:20
...
How to get the top 10 values in postgresql?
...y
As @Raphvanns pointed out, this will give you the first 10 rows literally. To remove duplicate values, you have to select distinct rows, e.g.
select distinct *
from scores
order by score desc
fetch first 10 rows only
SQL Fiddle
...
Replace None with NaN in pandas dataframe
...beware when you run df.replace([None], np.nan, inplace=True), this changed all datetime objects with missing data to object dtypes. So now you may have broken queries unless you change them back to datetime which can be taxing depending on the size of your data.
– Doubledown
...
What is the difference between const int*, const int * const, and int const *?
...= int const *
const int * const == int const * const
If you want to go really crazy you can do things like this:
int ** - pointer to pointer to int
int ** const - a const pointer to a pointer to an int
int * const * - a pointer to a const pointer to an int
int const ** - a pointer to a pointer t...
What's wrong with overridable method calls in constructors?
...ohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors must not invoke overridable methods, directly or indirectly. If you violate this rule, program failure will result. The superclass constructor runs before the subclass constructor, so the overr...
Benefit of using Parcelable instead of serializing object
...our objects.
Also realize that Android provides two mechanisms that allow you to pass
data to another
process. The first is to pass a bundle to an activity using an intent,
and the second is to pass a
Parcelable to a service. These two mechanisms are not interchangeable and
...
How to prevent ifelse() from turning Date objects into numeric objects
...irst this felt a little "hackish" to me. But now I just think of it as a small price to pay for the performance returns that I get from ifelse(). Plus it's still a lot more concise than a loop.
share
|
...