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What's the difference between Invoke() and BeginInvoke()
...ke/BeginInvoke?
Delegate.Invoke: Executes synchronously, on the same thread.
Delegate.BeginInvoke: Executes asynchronously, on a threadpool thread.
Control.Invoke: Executes on the UI thread, but calling thread waits for completion before continuing.
Control.BeginInvoke: Executes on the UI thread, ...
In WPF, what are the differences between the x:Name and Name attributes?
...te of XAML.
The reason this was done was to allow for frameworks that already have a concept of "Name" at runtime, such as WPF. In WPF, for example, FrameworkElement introduces a Name property.
In general, a class does not need to store the name for x:Name to be useable. All x:Name means to XAML i...
Is there any NoSQL data store that is ACID compliant?
...use of Erlang, but there are others out there.
I'd say ACID does not contradict or negate the concept of NoSQL... While there seems to be a trend following the opinion expressed by dove , I would argue the concepts are distinct.
NoSQL is fundamentally about simple key-value (e.g. Redis) or documen...
Add missing dates to pandas dataframe
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unutbuunutbu
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Optional query string parameters in ASP.NET Web API
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frapontillofrapontillo
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Linq to Entities join vs groupjoin
...ps. This can be turned into a flat list of parent-child pairs by two small additions:
from p in parents
join c in children on p.Id equals c.Id into g // <= into
from c in g.DefaultIfEmpty() // <= flattens the groups
select new { Parent = p.Value, Child = c?.ChildValue }
The resu...
In C#, how do I calculate someone's age based on a DateTime type birthday?
...h the person was born in case of a leap year
if (birthdate.Date > today.AddYears(-age)) age--;
However, this assumes you are looking for the western idea of the age and not using East Asian reckoning.
share
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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
...
One trick is to avoid activeByDefault, and instead activate the profile by the absence of a property, eg:
<profiles>
<profile>
<id>firstProfile</id>
<activation>
<property>
<name>!skipFirstProfile</name&...
Is an array name a pointer?
...ontents of the array a into the pointer p (whatever that would mean). Instead, the array name a is converted to a pointer to its first element. So that assignment does the same as the previous one.
Now you can use p in a similar way to an array:
p[3] = 17;
The reason that this works is that the ...
Syntax behind sorted(key=lambda: …)
...
We can compare the use of lambda with that of def to create a function.
adder_lambda = lambda parameter1,parameter2: parameter1+parameter2
def adder_regular(parameter1, parameter2): return parameter1+parameter2
lambda just gives us a way of doing this without assigning a name. Which makes it gr...