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Algorithm to return all combinations of k elements from n
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In C#:
public static IEnumerable<IEnumerable<T>> Combinations<T>(this IEnumerable<T> elements, int k)
{
return k == 0 ? new[] { new T[0] } :
elements.SelectMany((e, i) =>
elements.Skip(i +...
How to get first N elements of a list in C#?
...one is interested (even if the question does not ask for this version), in C# 2 would be: (I have edited the answer, following some suggestions)
myList.Sort(CLASS_FOR_COMPARER);
List<string> fiveElements = myList.GetRange(0, 5);
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Anonymous method in Invoke call
...en:
this.Invoke(delegate { this.Text = "hi"; });
// or since we are using C# 3.0
this.Invoke(() => { this.Text = "hi"; });
You can of course do the same with BeginInvoke:
public static void BeginInvoke(this Control control, Action action)
{
control.BeginInvoke((Delegate)action);
}
If yo...
Web安全测试之XSS - 更多技术 - 清泛网 - 专注C/C++及内核技术
... “单引号”，“引号” 之类的特殊字符进行编码。
在C#中已经提供了现成的方法，只要调用HttpUtility.HtmlEncode("string <scritp>") 就可以了。 （需要引用System.Web程序集）
Fiddler中也提供了很方便的工具, 点击Toolbar上的"TextWizard" 按...
Shortcut to create properties in Visual Studio?
I have seen some people creating properties in C# really fast, but how did they do it?
16 Answers
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Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
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Incidentally, the Microsoft implementation of the C# compiler actually gets the type analysis of the conditional operator wrong in a very subtle and interesting (to me) way. My article on it is Type inference woes, part one.
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How to select an option from drop down using Selenium WebDriver C#?
...namespace was not available after installing Selenium.NET binding into the C# project. Later found out that we can easily install latest version of Selenium WebDriver Support Classes by running the command:
Install-Package Selenium.Support
in NuGet Package Manager Console, or install Selenium.Sup...
Performance differences between debug and release builds
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The C# compiler itself doesn't alter the emitted IL a great deal in the Release build. Notable is that it no longer emits the NOP opcodes that allow you to set a breakpoint on a curly brace. The big one is the optimizer that's ...
Stripping out non-numeric characters in string
Hey Im looking to strip out non-numeric characters in a string in ASP.NET C#
11 Answers
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How to make IntelliJ IDEA insert a new line at every end of file?
...sin for .NET) is driving me crazy, this might be helpful for those writing C# as Ensure line feed at file end on Save alone won't work. It needs
File → Settings → Editor → Code Style → C# → Line Breaks and Wrapping → Line feed at end of file.
I don't remember changing it and I haven't ...