By putting ^ at the beginning of your regex and $ at the end, you ensure that no other characters are allowed before or after your regex. For example, the regex [0-9] matches the strings "9" as …

2010年7月27日 · C# is not assembler, and out of 99.9% of the times i++ or ++i are used in code, the things going on in the background are just that; in the background. I write C# to climb to …

2008年8月12日 · Flags itself does nothing. Also, C# does not require Flags per se. But the ToString implementation of your enum uses Flags, and so does Enum.IsDefined, Enum.Parse, …

2008年11月14日 · From C# 3 to C# 5, this was only used for lambda expressions. These are basically a shorter form of the anonymous methods introduced in C# 2, but can also be …

2020年7月16日 · 103 With ObsoleteAttribute you can mark a method as deprecated. It has three constructors: [Obsolete]: is a no parameter constructor and is a default using this attribute. …

See this post Difference between Property and Field in C# 3.0+ on the difference between a field and a property getter in C#. Update: Note that expression-bodied members were expanded to …

I have a method as described below which get user as parameter. To send the user parameter values, I am using postman request/response tool. My question is, if the request already have …

string str = "Hello " + name; // This calls an overload of operator +. In C#6 (VS2015) string interpolation has been introduced (as described by other answers).

2014年1月18日 · C# supports two boolean or operators: the single bar | and the double-bar ||. The difference is that | always checks both the left and right conditions, while || only checks the …

2023年3月30日 · 42 C# 11 has introduced, required modifier, which can be used a below: public required string FirstName { get; init; } public required string LastName { get; init; } [Required] …