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How to display default text “--Select Team --” in combo box on pageload in WPF?
...a combo box,for which I display the data fetched from Database. Before the items added to the Combo box, I want to display the default text such as
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What's a good way to extend Error in JavaScript?
...ty, but fileName and lineNumber are practically useless to be used in inheritance.
So, the minimalistic approach is:
function MyError(message) {
this.name = 'MyError';
this.message = message;
this.stack = (new Error()).stack;
}
MyError.prototype = new Error; // <-- remove this if y...
ORDER BY the IN value list
...
You can do it quite easily with (introduced in PostgreSQL 8.2) VALUES (), ().
Syntax will be like this:
select c.*
from comments c
join (
values
(1,1),
(3,2),
(2,3),
(4,4)
) as x (id, ordering) on c.id = x.id
order b...
How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...0994
2 NaN 0.000000
3 1.876360 -0.229738
4 NaN 0.000000
EDIT:
To avoid a SettingWithCopyWarning, use the built in column-specific functionality:
df.fillna({1:0}, inplace=True)
share
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How to do an update + join in PostgreSQL?
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The UPDATE syntax is:
[ WITH [ RECURSIVE ] with_query [, ...] ]
UPDATE [ ONLY ] table [ [ AS ] alias ]
SET { column = { expression | DEFAULT } |
( column [, ...] ) = ( { expression | DEFAULT } [, ...] ) } [, ...]
[ FROM from_list ]
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How to pass an array into jQuery .data() attribute
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It's treating your variable as a string, the zeroth element of which is [.
This is happening because your string is not valid JSON, which should use double-quotes as a string delimiter instead of single quotes. You'll then ...
Capitalize only first character of string and leave others alone? (Rails)
I'm trying to get Rails to capitalize the first character of a string, and leave all the others the way they are. I'm running into a problem where "i'm from New York" gets turned into "I'm from new york."
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How do I declare an array of weak references in Swift?
I'd like to store an array of weak references in Swift. The array itself should not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this.
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Is there a splice method for strings?
The Javascript splice only works with arrays. Is there similar method for strings? Or should I create my own custom function?
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UIActivityViewController crashing on iOS 8 iPads
I am currently testing my app with Xcode 6 (Beta 6). UIActivityViewController works fine with iPhone devices and simulators but crashes with iPad simulators and devices (iOS 8) with following logs
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