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Unsubscribe anonymous method in C#
...
{
return from d in MyEvent.GetInvocationList()
select (EventHandler)d;
}
}
So you can access the whole invocation list from outside MyClass and unsubscribe any handler you want. For instance:
myClass.MyEvent -= myClass.GetMyEventHandlers().Last();
I've written ...
Reading an Excel file in PHP [closed]
...)->Name = $WorkSheetName;
$this->xlBook->Worksheets(1)->Select;
if($XlsColumnWidth != null)
{
//$XlsColumnWidth = array("A1"=>15,"B1"=>20);
foreach($XlsColumnWidth as $Clm=>$Width)
{
//Set Columns Width
...
How to create a date and time picker in Android? [closed]
.... This Date object contains
// the date and time that the user has selected.
}
@Override
public void onDateTimeCancel()
{
// Overriding onDateTimeCancel() is optional.
}
};
Then you create and show the dialog:
new SlideDateTimePicker.Builder(getSupportFragment...
Subscript and Superscript a String in Android
... HTML, that is creating a Spanned, which TextViews do support. Essentially CharSequences with style information.
– Dandre Allison
Apr 20 '12 at 17:21
1
...
Remove unwanted parts from strings in a column
...
A very simple method would be to use the extract method to select all the digits. Simply supply it the regular expression '\d+' which extracts any number of digits.
df['result'] = df.result.str.extract(r'(\d+)', expand=True).astype(int)
df
time result
1 09:00 52
2 10:00...
How to wait for all goroutines to finish without using time.Sleep?
This code selects all xml files in the same folder, as the invoked executable and asynchronously applies processing to each result in the callback method (in the example below, just the name of the file is printed out).
...
How do I display the current value of an Android Preference in the Preference summary?
..., and ListPreference.getSummary() will format the summary with the current selected entry (or "" if none selected).
– SOFe
Aug 3 '16 at 7:19
...
Increment value in mysql update query
...ion to numbers.
To demonstrate, the following will produce the result 6:
SELECT ' 05.05 '+'.95';
String concatenation in MySQL requires the CONCAT() function so there is no ambiguity here and MySQL converts the strings to floats and adds them together.
I actually think the reason the initial q...
Grabbing the href attribute of an A element
...matches <a at the begining of the string, followed by any number of any char (non greedy) .*? then href= followed by the link surrounded by either " or '
$str = '<a title="this" href="that">what?</a>';
preg_match('/^<a.*?href=(["\'])(.*?)\1.*$/', $str, $m);
var_dump($m);
Output:...
Is it safe to remove selected keys from map within a range loop?
How can one remove selected keys from a map?
Is it safe to combine delete() with range, as in the code below?
4 Answers
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