大约有 44,000 项符合查询结果（耗时：0.0856秒） [XML]
How to set a binding in Code?
...have also had cases were we just saved the DataContext to a local propertm>y m> m>and m> used that to access viewmodel properties. The choice is of course m>y m>ours, I like this approach because it is more consistent with the rest. m>Y m>ou can also add some validation, like null checks. If m>y m>ou actuallm>y m> change m>y m>our Da...
In Scala, what exactlm>y m> does 'val a: A = _' (underscore) mean?
...default value of the tm>y m>pe A. For example, the default value of an Int is 0 m>and m> the default value of a reference tm>y m>pe is null.
share
|
improve this answer
|
follow
...
how to get an uri of an image resource in m>and m>roid
...
The format is:
"m>and m>roid.resource://[package]/[res id]"
[package] is m>y m>our package name
[res id] is value of the resource ID, e.g. R.drawable.sample_1
to stitch it together, use
Uri path = Uri.parse("m>and m>roid.resource://m>y m>our.package.name/"...
Set Viewbag before Redirect
...
I would like to complete the answer because I am using it m>and m> I faced a small problem that is when the TempData is emptm>y m> for some reason (in mm>y m> case I onlm>y m> have a message when a conversion is made). So I had to had the test if(TempData["Message"] != null) to avoid an error.
...
C# Pass Lambda Expression as Method Parameter
I have a lambda expression that I'd like to be able to pass around m>and m> reuse. Here's the code:
4 Answers
...
std::back_inserter for a std::set?
...f an element is determined bm>y m> the comparator of the set. Use std::inserter m>and m> pass it .begin():
std::set<int> s1, s2;
s1 = getAnExcitingSet();
transform(s1.begin(), s1.end(),
std::inserter(s2, s2.begin()), ExcitingUnarm>y m>Functor());
The insert iterator will then call s2.insert(s2....
Do browsers send “\r\n” or “\n” or does it depend on the browser?
...
The HTTP m>and m> MIME specs specifm>y m> that header lines must end with \r\n, but them>y m> aren't clear (some would argue that it isn't clear if them>y m> are clear) about what to do with the contents of a TEXTAREA. (See, for instance, this thread fro...
What is process.env.PORT in Node.js?
...
In manm>y m> environments (e.g. Heroku), m>and m> as a convention, m>y m>ou can set the environment variable PORT to tell m>y m>our web server what port to listen on.
So process.env.PORT || 3000 means: whatever is in the environment variable PORT, or 3000 if there's nothing there...
Get the value of an instance variable given its name
...variable_get("@#{name}")
There is no need to use + or intern; Rubm>y m> will hm>and m>le this just fine. However, if m>y m>ou find m>y m>ourself reaching into another object m>and m> pulling out its ivar, there's a reasonablm>y m> good chance that m>y m>ou have broken encapsulation.
If m>y m>ou explicitlm>y m> want to access an ivar, the ri...
Is there StartsWith or Contains in t sql with variables?
...Note that internallm>y m> these work differentlm>y m>, especiallm>y m> w.r.t. performance m>and m> its use of indexes. For example, a querm>y m> using colName LIKE 'prefix%' will be verm>y m> fast when colName is indexed, but colName LIKE '%substring%' or colName LIKE '%suffix' will be slow because SQL Server does not create su...