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Why cannot cast Integer to String in java?
...\
/ \
String Integer
The casting which you are trying, works only if they are in the same hierarchy, e.g.
Object
/
/
A
/
/
B
In this case, (A) objB or (Object) objB or (Object) objA will work.
Hence as others have mentioned already, to convert an integer to ...
Difference between Control Template and DataTemplate in WPF
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Typically a control is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however, generally appear so that they can presen...
Bash/sh - difference between && and ;
...ifference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell or so?
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What’s the best way to reload / refresh an iframe?
I would like to reload an <iframe> using JavaScript. The best way I found until now was set the iframe’s src attribute to itself, but this isn’t very clean. Any ideas?
...
Is there a way to run Bash scripts on Windows? [closed]
I have bought and I use Windows 7 Ultimate, and I like to use it to develop applications. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most...
Postgresql: password authentication failed for user “postgres”
...in. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times without this problem. What should I do? And what happens?
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Listening for variable changes in JavaScript
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Yes, this is now completely possible!
I know this is an old thread but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters_and_setters
You can define...
What is %2C in a URL?
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Check out http://www.asciitable.com/
Look at the Hx, (Hex) column; 2C maps to ,
Any unusual encoding can be checked this way
+----+-----+----+-----+----+-----+----+-----+
| Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr |
+----+---...
How to get a complete list of object's methods and attributes?
...n function. As the user can reimplement __getattr__, suddenly allowing any kind of attribute, there is no possible generic way to generate that list. The dir function returns the keys in the __dict__ attribute, i.e. all the attributes accessible if the __getattr__ method is not reimplemented.
For t...
How do I set the value property in AngularJS' ng-options?
...for value in array
select as label group by group for value in array track by trackexpr
For object data sources:
label for (key , value) in object
select as label for (key , value) in object
label group by group for (key, value) in object
select as label group by group for (key, value) i...