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Index of Currently Selected Row in DataGridView
It's that simple. How do I get the index of the currently selected Row of a DataGridView ? I don't want the Row object, I want the index (0 .. n).
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System.Security.SecurityException when writing to Event Log
...gate/expand to the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Security
Right click on this entry and select Permissions
Add the Network Service user
Give it Read permission
UPDATE: The steps above are ok on developer machines, where you do not use deployment pro...
How to subtract a day from a date?
...ld be careful to avoid errors around DST transitions (or changes in UTC offset for other reasons):
from datetime import datetime, timedelta
from tzlocal import get_localzone # pip install tzlocal
DAY = timedelta(1)
local_tz = get_localzone() # get local timezone
now = datetime.now(local_tz) # ge...
Show a popup/message box from a Windows batch file
...d line parameters.
Something like the following saved in MessageBox.vbs:
Set objArgs = WScript.Arguments
messageText = objArgs(0)
MsgBox messageText
Which you would call like:
cscript MessageBox.vbs "This will be shown in a popup."
MsgBox reference if you are interested in going this route.
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Running Bash commands in Python
... of code ... which conveniently already exist in the standard library as a set of higher-level wrapper functions for various purposes, which are presented in more detail in the following.
Here's a paragraph from the documentation:
The recommended approach to invoking subprocesses is to use the ...
What is non-blocking or asynchronous I/O in Node.js?
...alert(1);
alert(2);
alert(3);
Asynchronous: 1,3,2
alert(1);
setTimeout(() => alert(2), 0);
alert(3);
Blocking vs Non-blocking
Blocking refers to operations that block further execution until that operation finishes. Non-blocking refers to code that doesn't block execution....
Check if string contains only whitespace
How can I test if a string contains only whitespace?
11 Answers
11
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Why are Perl 5's function prototypes bad?
...ignatures does run time argument counting, variable assigning, and default setting:
use v5.20;
use feature qw(signatures);
no warnings qw(experimental::signatures);
animals( 'Buster', 'Nikki', 'Godzilla' );
sub animals ($cat, $dog, $lizard = 'Default reptile') {
say "The cat is $cat";
sa...
Which characters are valid/invalid in a JSON key name?
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Should I declare Jackson's ObjectMapper as a static field?
...am a bit concerned if ObjectMapper is still thread-safe after ObjectMapper#setDateFormat() is called. It is known that SimpleDateFormat is not thread safe, thus ObjectMapper won't be unless it clones e.g. SerializationConfig before each writeValue() (I doubt). Could you debunk my fear?
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