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How to put a new line into a wpf TextBlock control?
...the new line directly in the data...of course! Here I just spent a lot of time trying \n, <LineBreak/>, and tons of html codes to no avail. I should have tried simplest approach first.
– thehelix
Nov 15 '17 at 22:56
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“There was an error while performing this operation”
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+1 I would have been spinning my wheels for a long time if it wasn't for this.
– JustinMichaels
Aug 5 '14 at 13:07
4
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Android device does not show up in adb list [closed]
... For me MTP didn't work, but PTP did work, although not from the first time, I was also killing and restarting ADB a couple of times, plugged to different USB, toggled off/on USB debugging, revoked USB debugging authorizations, enabled Stay Awake, so I tried all I could, and then after switchin...
Is there a /dev/null on Windows?
... Writing to the console - or even a file - can take a significant chunk of time. I've just tested it with a program writing "Hello there" to stdout 10000000 times. Redirecting to a file (on an SSD) took 18 seconds. Redirecting to NUL took 4 seconds. Not redirecting at all made me give up through a l...
XMLHttpRequest status 0 (responseText is empty)
...ng localhost development you can make cross-domain calls - I do it all the time.
For Firefox, you have to enable it in your config settings
signed.applets.codebase_principal_support = true
Then add something like this to your XHR open code:
if (isLocalHost()){
if (typeof(netscape) != 'un...
SQL Server insert if not exists best practice
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Assuming that the OP has the levity at this time to restructure all his tables to get one cached result. Rewriting your db and app, instead of solving the problem within some defined scope, every time something doesn't fall into place easily, is a recipe for disaster.
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Get hours difference between two dates in Moment Js
...urs() method (see the docs).
var duration = moment.duration(end.diff(startTime));
var hours = duration.asHours();
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How to get first element in a list of tuples?
... = [idx for idx, val in my_list]
>>> my_ids
[1, 2]
At iteration time each tuple is unpacked and its values are set to the variables idx and val.
>>> x = (1, u'abc')
>>> idx, val = x
>>> idx
1
>>> val
u'abc'
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How to test multiple variables against a value?
...advantage of the constant-cost membership test (in takes a fixed amount of time whatever the left-hand operand is).
When you use or, python sees each side of the operator as separate expressions. The expression x or y == 1 is treated as first a boolean test for x, then if that is False, the express...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
... defining a function, so function default values are irrelevant:
from datetime import datetime, timedelta
class MyModel(models.Model):
# default to 1 day from now
my_date = models.DateTimeField(default=datetime.now() + timedelta(days=1))
This last line is not defining a function; it is invoki...