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How to convert wstring into string?
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As Cubbi pointed out in one of the comments, std::wstring_convert (C++11) provides a neat simple solution (you need to #include <locale> and <codecvt>):
std::wstring string_to_convert;
//setup converter
using convert_type = std::codecv...
Use images instead of radio buttons
...rap radio and image in <label>
Hide radio button (Don't use display:none or visibility:hidden since such will impact accessibility)
Target the image next to the hidden radio using Adjacent sibling selector +
/* HIDE RADIO */
[type=radio] {
position: absolute;
opacity: 0;
width: 0;
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...e. sorting is performed by the first key, then the second key if the first one is equal, etc". Does this mean that the structure is stored such that a lookup for a specific 2-part composite key will take O(n=1) time, i.e. is the container sorted such that there is a pointer directly to each ite...
Why are functions and methods in PHP case-insensitive?
... of tools that I put together for my Website and for a couple of projects. One tool did some fancy hit logging to an mSQL database, another acted as a form data interpreter. I ended up with about 30 different little CGI programs written in C before I got sick of it, and combined all of them into a s...
Difference between TCP and UDP?
...e out of order or late (how many times have you gotten a postcard from someone AFTER they've gotten home from the vacation?)
TCP is as close to a guaranteed delivery protocol as you can get, while UDP is just "best effort".
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Take the content of a list and append it to another list
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Yes, append is for one element, extend is like concat.
– Catalina Chircu
Feb 4 at 6:38
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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
I am trying to select data from a MySQL table, but I get one of the following error messages:
31 Answers
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How to do a join in linq to sql with method syntax?
...to create a new object of a third different type with a where clause (e.g. one that is not your Entity Framework object) you can do this:
public IEnumerable<ThirdNonEntityClass> demoMethod(IEnumerable<int> property1Values)
{
using(var entityFrameworkObjectContext = new EntityFramewo...
Remove scroll bar track from ScrollView in Android
... a scrollbar from a view (and its subclass) via xml:
android:scrollbars="none"
http://developer.android.com/reference/android/view/View.html#attr_android:scrollbars
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Detect changes in the DOM
...Chrome 18+, Firefox 14+, IE 11+, Safari 6+
If you need to support older ones, you may try to fall back to other approaches like the ones mentioned in this 5 (!) year old answer below. There be dragons. Enjoy :)
Someone else is changing the document? Because if you have full control over the c...