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Exiting from python Command Line
...it)
In active python what is happening is that exit is a function. If you do not call the function it will print out the string representation of the object. This is the default behaviour for any object returned. It's just that the designers thought people might try to type exit to exit the interpr...
Best way to check if a Data Table has a null value in it
...bject value = row["ColumnName"];
if (value == DBNull.Value)
// do something
else
// do something else
}
More information about the DBNull class
If you want to check if a null value exists in the table you can use this method:
public static bool HasNull(this DataTable ta...
Parameterize an SQL IN clause
How do I parameterize a query containing an IN clause with a variable number of arguments, like this one?
40 Answers
...
Equivalent of *Nix 'which' command in PowerShell?
How do I ask PowerShell where something is?
14 Answers
14
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Measure execution time for a Java method [duplicate]
How do I calculate the time taken for the execution of a method in Java?
8 Answers
8
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What's the difference between SoftReference and WeakReference in Java?
... garbage collector's ability to
determine reachability for you, so you
don't have to do it yourself. You
create a weak reference like this:
WeakReference weakWidget = new WeakReference(widget);
and then
elsewhere in the code you can use
weakWidget.get() to get the actual
Widget ob...
Using Laravel Homestead: 'no input file specified'
..."You have arrived" screen when I run "php artisan serve" but when I try to do the same thing via Vagrant, I get "no input file specified". My Homestead.yaml file looks like this:
...
Android TextView with Clickable Links: how to capture clicks?
... ClickableSpan() {
public void onClick(View view) {
// Do something with span.getURL() to handle the link click...
}
};
strBuilder.setSpan(clickable, start, end, flags);
strBuilder.removeSpan(span);
}
protected void setTextViewHTML(TextView text, String html)...
How to take a screenshot programmatically on iOS
...or:@selector(scale)]) {
UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale);
} else {
UIGraphicsBeginImageContext(self.window.bounds.size);
}
[self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFr...
Show hide fragment in android
...
Don't mess with the visibility flags of the container - FragmentTransaction.hide/show does that internally for you.
So the correct way to do this is:
FragmentManager fm = getFragmentManager();
fm.beginTransaction()
...