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In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
... WinForms applications, also INotifyPropertyChanged has been in .Net since 2.0, WPF has only been around since 3.0
– benPearce
Mar 4 '11 at 6:03
40
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Inserting image into IPython notebook markdown
...;img src="files/subdir/image.png">, etc.
Update: starting with IPython 2.0, the files/ prefix is no longer needed (cf. release notes). So now the solution <img src="image.png"> simply works as expected.
share
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How to fix: Handler “PageHandlerFactory-Integrated” has a bad module “ManagedPipelineHandler” in its
...In this case you the executable not from the .NET 4.0 folder, but from the 2.0 one (see my answer below)
– Nikita G.
Jun 13 '12 at 14:04
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Fetch the row which has the Max value for a column
...O(n^2) time. Using the subquery method instead reduced the query time from 2.0s to 0.003s. YMMV.
– Jesse
Feb 22 '12 at 6:22
1
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What are “named tuples” in Python?
...le('Point', 'x y')
>>> pt1 = Point(1.0, 5.0)
>>> pt1.x = 2.0
AttributeError: can't set attribute
If you want to be able change the values, you need another type. There is a handy recipe for mutable recordtypes which allow you to set new values to attributes.
>>> from r...
为维护国家安全 中国限制出口无人机和高性能计算机 - 资讯 - 清泛网 - 专注...
...聚合数字计算机性能专门设计、单链路单向通信速率超过2.0GB/s的外部互连设备，都在限制范围内。
2011年10月27日，我国第一台完全采用国产CPU处理器的千万亿次超级计算机——神威蓝光，在国家超级计算济南中心投入使用。
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Allow User to input HTML in ASP.NET MVC - ValidateInput or AllowHtml
...e validation mode used. See MSDN:
<httpRuntime requestValidationMode="2.0" />
Edit Sept 2014: As per sprinter252 comments:
You should now use the [AllowHtml] attribute. See below from MSDN:
For ASP.NET MVC 3 applications, when you need to post HTML back to
your model, don’t use Va...
Do Google refresh tokens expire?
...lace. As far as, I understand, the access token that is issued using oAuth 2.0, can then be used to request a refresh token. Why not just have a permanent access token, and cut out the extra call for the refresh token.
– Charles Robertson
Dec 15 '15 at 22:24
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
....1.0
> nvm install v8.1.2
> nvm use v8.1.2
> nvm list
v4.2.0
v5.8.0
v6.11.0
-> v8.1.2
system
you can use this with AVN to automatically switch versions as you hop between different projects with different node dependencies.
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Find() vs. Where().FirstOrDefault()
... predates the other methods. List<T> was added with generics in .NET 2.0, and Find was part of the API for that class. Where and FirstOrDefault were added as extension methods for IEnumerable<T> with Linq, which is a later .NET version. I cannot say with certainty that if Linq existed wi...