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Get PHP class property by string
...$prop;
Or, if you have control over the class, implement the ArrayAccess interface and just do this
echo $obj['Name'];
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How do you change the datatype of a column in SQL Server?
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This only works if you don't have constraints and indexes on that column, otherwise, you need to drop everything and recreate it, which is tedious and grunt work, especially if you have many foreign references on that column. e.g. when changing from tinyint to int.
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Automatic popping up keyboard on start Activity
...in your layout tag in XML file:
android:focusable="true"
android:focusableInTouchMode="true"
As reported by other members in comments it doesn't works on ScrollView therefore you need to add these attributes to the main child of ScrollView.
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Default constructor with empty brackets
...hat is known as "C++'s most vexing parse". Basically, anything that can be interpreted by the compiler as a function declaration will be interpreted as a function declaration.
Another instance of the same problem:
std::ifstream ifs("file.txt");
std::vector<T> v(std::istream_iterator<T>...
Generic method multiple (OR) type constraint
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You can access the value through Primary and Alternate
There are implicit converters between TP/TA and Either to allow you to pass either the values or an Either anywhere where one is expected. If you do pass an Either where a TA or TP is expected, but the Either contains the wrong type of value yo...
PHP script - detect whether running under linux or Windows?
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Turned this into a function: function is_linux(){return (DIRECTORY_SEPARATOR == '/') ? true : false;}
– Mario Lurig
Oct 6 '17 at 0:25
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Linux c++ error: undefined reference to 'dlopen'
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I have run into the same problem... I added the compiler flag under Project>Properties>C/C++Build>Settings>(My Linker)>Miscellaneous in the Linker flags text field. It did nothing.
– MirroredFate
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Calling JavaScript Function From CodeBehind
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You can not do this directly. In standard WebForms JavaScript is interpreted by browser and C# by server. What you can do to call a method from server using JavaScript is.
Use WebMethod as attribute in target methods.
Add ScriptManager setting EnablePageMethods as true.
Add JavaScript c...
Switching to a TabBar tab view programmatically?
...ion but for Swift 3:
func setTab<T>(_ myClass: T.Type) {
var i: Int = 0
if let controllers = self.tabBarController?.viewControllers {
for controller in controllers {
if let nav = controller as? UINavigationController, nav.topViewController is T {
br...
SQLite in Android How to update a specific row
..._id=?", new String[]{id}). SQLite will automatically fill the fourth param into the "?" in the third param, i.e. the WHERE clause. If your third param contains n "?"s , the fourth param should be a String[] of length n
– CristianoYL
Jul 13 '17 at 17:32
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