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Casting a variable using a Type variable
...th a value of 1000, the compiler
// doesn't know the exact type so it will allow you to call any
// property or method on it, but will crash if it doesn't exist
dynamic value3 = Convert.ChangeType(value1, intType);
I've written the answer with generics, because I think it is a very likely sign of ...
Sqlite primary key on multiple columns
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@pratnala In standard SQL, yes. In SQLite, NULL is allowed in primary keys. This answer emphasizes that if you want more standard behavior, you need to add the NOT NULL yourself. My answer is just the very basic syntax for a multi-column primary key.
– B...
Which selector do I need to select an option by its text?
...down when a short comment would suffice. Or do you expect of him to retest all his answers for every new release of jQuery?
– WynandB
Nov 14 '13 at 23:51
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Should Github be used as a CDN for javascript libraries? [closed]
.... The last one means less total work for everybody, so it's clearly a win all around, and is more likely the more often we (developers) rely on the CDNs to serve our javascript.
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How to remove text from a string?
...eplace('data-','');
console.log(ret); //prints: 123
Docs.
For all occurrences to be discarded use:
var ret = "data-123".replace(/data-/g,'');
PS: The replace function returns a new string and leaves the original string unchanged, so use the function return value after the replace() c...
Can you delete multiple branches in one command with Git?
...syntax. But you can do it like this:
git branch -D 3.2 3.2.1 3.2.2
Basically, git branch will delete multiple branch for you with a single invocation. Unfortunately it doesn't do branch name completion. Although, in bash, you can do:
git branch -D `git branch | grep -E '^3\.2\..*'`
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Detect viewport orientation, if orientation is Portrait display alert message advising user of instr
I am building a website specifically for mobile devices. There is one page in particular which is best viewed in landscape mode.
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The Android emulator is not starting, showing “invalid command-line parameter”
...th R12 where the SDK location cannot contain any spaces.
The default installation location is: C:\Programme Files(x86)\Android\android-sdk. They are currently fixing the problem but you can currently work around it by changing the SDK location path in eclipse to C:\PROGRA~2\Android\android-sdk.
I...
What is the correct syntax for 'else if'?
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no worries, we all have to learn sometime. I find it weird that python places such an elphisise on readbility and then goes and use elkif instead of else it. I suggest keeping the python API manual open at all times: docs.python.org/3.1 th...
Finish an activity from another activity
...ngleInstance"
When the user clicks new, do FirstActivity.fa.finish(); and call the new Intent.
When the user clicks modify, call the new Intent or simply finish activity B.
FIRST WAY
In your first activity, declare one Activity object like this,
public static Activity fa;
onCreate()
{
fa = t...