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C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
...opt] int32 x) cil managed
{
.param [1] = int32(5)
.maxstack 8
L_0000: nop
L_0001: ret
}
.method //this is a new method
private hidebysig static //it is private, ???, and static
void foo //it returns nothing (void) and is named Foo
([opt] int32 x) //it has one parameter, which i...
What reference do I need to use Microsoft.Office.Interop.Excel in .NET?
...ws > assembly > GAC > Microsoft.Office.Interop.Excel > 12.0.0.0_etc > Microsoft.Office.Interop.Excel.dll
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
...:
public class UglyCustomer : INotifyPropertyChanged
{
private string _firstName;
public string FirstName
{
get { return _firstName; }
set
{
string oldValue = _firstName;
_firstName = value;
if(oldValue != value)
...
Looking to understand the iOS UIViewController lifecycle
...nd viewDidLayoutSubviews go on this flowchart?
– Max_Power89
Dec 18 '14 at 16:40
7
This diagram ...
Better way to check variable for null or empty string?
... what is the purpose of !isset() here? how is it different to is_null()?
– nickf
May 7 '10 at 13:44
2
...
Build the full path filename in Python
...
This works fine:
os.path.join(dir_name, base_filename + "." + filename_suffix)
Keep in mind that os.path.join() exists only because different operating systems use different path separator characters. It smooths over that difference so cross-platform code d...
Convert hex string to int in Python
....
Both strings will suffice for conversion in this way:
>>> string_1 = "0xffff"
>>> string_2 = "ffff"
>>> int(string_1, 16)
65535
>>> int(string_2, 16)
65535
Letting int infer
If you pass 0 as the base, int will infer the base from the prefix in the string.
>&...
Simple argparse example wanted: 1 argument, 3 results
...ou started.
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("a")
args = parser.parse_args()
if args.a == 'magic.name':
print 'You nailed it!'
But this positional argument is now required. If you leave it out when invoking this program, you'll get an error about missin...
SQL to determine minimum sequential days of access?
... statement ended with a semi-colon):
WITH numberedrows
AS (SELECT ROW_NUMBER() OVER (PARTITION BY UserID
ORDER BY CreationDate)
- DATEDIFF(day,'19000101',CreationDate) AS TheOffset,
CreationDate,
UserID
...
MySQL get the date n days ago as a timestamp
...
DATE_SUB will do part of it depending on what you want
mysql> SELECT DATE_SUB(NOW(), INTERVAL 30 day);
2009-06-07 21:55:09
mysql> SELECT TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day));
2009-06-07 21:55:09
mysql> SELECT U...