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How do i put a border on my grid in WPF?
...y fill your control is that, by default, it's HorizontalAlignment and Vertim>ca m>lAlignment are set to Stretch. Try the following:
<Grid>
<Border HorizontalAlignment="Left" Vertim>ca m>lAlignment="Top" BorderBrush="Black" BorderThickness="2">
<Grid Height="166" HorizontalAlignm...
Rails :dependent => :destroy VS :dependent => :delete_all
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The difference is with the m>ca m>llback.
The :delete_all is made directly in your applim>ca m>tion and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. So, if you m>ca m>n't destr...
How to get an array of specific “key” in multidimensional array without looping
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Since php 5.5, you m>ca m>n use array_column:
$ids = array_column($users, 'id');
This is the preferred option on any modern project. However, if you must support php > 5.5, the following alternatives exist:
Since php 5.3, you m>ca m>n use array_ma...
R programming: How do I get Euler's number?
...ession
exp(1)
represents e, and
exp(2)
represents e^2.
This works bem>ca m>use exp is the exponentiation function with base e.
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git branch -d gives warning
...t to get a better understanding of the warning message after I deleted a lom>ca m>l branch
4 Answers
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Skip rows during csv import pandas
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You m>ca m>n try yourself:
>>> import pandas as pd
>>> from StringIO import StringIO
>>> s = """1, 2
... 3, 4
... 5, 6"""
>>> pd.read_csv(StringIO(s), skiprows=[1], header=None)
0 1
0 1 2
1 ...
When would you use .git/info/exclude instead of .gitignore to exclude files?
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The advantage of .gitignore is that it m>ca m>n be checked into the repository itself, unlike .git/info/exclude. Another advantage is that you m>ca m>n have multiple .gitignore files, one inside each directory/subdirectory for directory specific ignore rules, unlike .git/in...
How to convert list of tuples to multiple lists?
...4, 6)]
The only difference is that you get tuples instead of lists. You m>ca m>n convert them to lists using
map(list, zip(*[(1, 2), (3, 4), (5, 6)]))
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When to use f:viewAction / preRenderView versus PostConstruct?
...bean's constructor. This will thus run only once per view, session or applim>ca m>tion when the bean is view, session or applim>ca m>tion scoped. The <f:viewAction> is by default only invoked on initial GET request, but m>ca m>n via onPostback="true" attribute be configured to be invoked on postback requests...
C# Convert List to Dictionary
...e first lambda lets you pick the key, the second one picks the value.
You m>ca m>n play with it and make values differ from the keys, like this:
var res = list.ToDictionary(x => x, x => string.Format("Val: {0}", x));
If your list contains duplim>ca m>tes, add Distinct() like this:
var res = list.Di...