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1. Top results related to how to initialize a dictionary in c#?

   • How to modify key in a dictionary in C#

     Top Answer

     Answered Mar 19, 2013 · 51 votes

     As Jason said, you can't change the key of an existing dictionary entry. You'll have to remove/add using a new key like so:

     // we need to cache the keys to update since we can't// modify the collection during enumerationvar keysToUpdate = new List<int>();-foreach (var entry in dict){ if (entry.Key < MinKeyValue) { keysToUpdate.Add(entry.Key); }}foreach (int keyToUpdate in keysToUpdate){ SortedDictionary<string, List<string>> value = dict[keyToUpdate]; int newKey = keyToUpdate + 1; // increment the key until arriving at one that doesn't already exist while (dict.ContainsKey(newKey)) { newKey++; } dict.Remove(keyToUpdate); dict.Add(newKey, value);}

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     1/5

   • How to initialize a struct in C#

     Top Answer

     Answered Oct 15, 2010 · 26 votes

     You can't use a property in a struct until it knows all the fields have been filled in.

     For example, in your case this should compile:

     Point p1;p1._x = 1;p1._y = 2;int x = p1.X; // This is okay, now the fields have been assigned

     Note how you don't have to explicitly call a constructor here... although in well-encapsulated structs you almost always would have to. The only reason you can get away with this is because your fields are public. Ick.

     However, I would strongly advise you not to use a mutable struct anyway. If you really want a struct, make it immutable and pass the values into the constructor:

     public struct Point{ private readonly int x; public int X { get { return x; } } private readonly int y; public int Y { get { return y; } } public Point(int x, int y) { this.x = x; this.y = y; }}...Point p1 = new Point(1, 2);

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     2/5

   • How to initialize a BigInteger in C#?

     Top Answer

     Answered Apr 13, 2010 · 9 votes

     It should be there, did you remember to add a reference?

     Right click your project, click Add Reference, then in the leftmost tab, select System.Numerics

     Then you can add it and use it.

     Other Answers

     Answered Sep 25, 2017 · 3 votes

     You need to add the reference System.Numerics yourself as mentioned in other answers, the System.Numerics.dll should be there if you have .NET 4 installed.

     Then, if your value is really a big one and you try:

     var myBigInteger = new BigInteger(50000000000000000000000000000000000000000000);-

     You will get a compilation error:

     Bad compile constant value

     The simplest approach is to use a text literal:

     var myBigInteger = BigInteger.Parse("50000000000000000000000000000000000000000000");-

     Other Answers

     Answered Apr 13, 2010 · 2 votes

     What version of .NET 4 is your project targeting? Make sure it is targeting the entire framework not the client profile. I have just confirmed that System.Numerics.dll is part of .NET 4 Client Profile so this shouldn't be the problem.

     Once you have done this make sure that you have referenced System.Numerics.dll in your project as well.

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     3/5

   • How to use dictionary a dictionary globally in C#.

     Top Answer

     Answered Apr 25, 2017 · 1 votes

     Declare the dictionary as static. Class can remain non-static. Now, no matter how many objects of that class are created, they all will refer to same dictionary.

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     4/5

   • How to do user input in a dictionary in C#?

     Top Answer

     Answered Aug 10, 2019 · 1 votes

     Note that a phone number is not an int, but a string. It may start with a zero, and if you'd parse that to an int, you lose the leading zero (0123456789 becomes 123456789). Also, I'd consider "+31 (0)6-12345678" a valid phone number.

     Here's an example that does what you want. It keeps requesting input until the user types 'exit' and updates the name with the phonenumber.

     public static void Main(){ var directory = new Dictionary<string, string>(); // Keep requesting inputs while (true) { string input = Console.ReadLine(); // provide a possibility to break the loop. if (input == "exit") { break; } string[] items = input.Split(' ', StringSplitOptions.RemoveEmptyEntries); if (items.Length != 2) { Console.WriteLine("Expecting '{Name} {Phonenumber}'"); continue; } directory[items[0]] = items[1]; } // TODO: Do something with directory}

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     5/5

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3. itsourcecode.com › typescript-tutorial › a-completeA Complete Guide to Understand TypeScript Dictionary

   itsourcecode.com › typescript-tutorial › a-complete

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   10 hours ago · A dictionary in TypeScript is a common data structure that lets you store data in key-value pairs. Unlike arrays that use numbers for indexing, dictionaries use keys which can be strings or other types, based on how you set it up. A TypeScript Dictionary often referred to as a map or associative array, is a key data structure in computer science.

4. stackoverflow.com › questions › 78558916c# - I don't know what else to do to initialize the TicTacTo ...

   stackoverflow.com › questions › 78558916

   • Cached

   10 hours ago · I'm making a TicTacTo game in the console app. I have to give each field an index. I did it with a dictionary where you have to enter a key and a value. When I enter it in the field, it obviously h...

5. www.youtube.com › watchFinding what c# language used in .net project - YouTube

   www.youtube.com › watch

   • Cached

   May 31, 2024 · Finding what c# language used in .net projectThe history of C# and its relationship with the .NET framework can be traced through their version history. Diff...

   • Video Duration: 1 min

   • Author: Myzingonline Programing Tutorials

6. www.geeksforgeeks.org › python-program-to-findPython Program to Find Armstrong Number in an Interval

   www.geeksforgeeks.org › python-program-to-find

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   10 hours ago · There are numerous ways to initialize the list with the elements, but sometimes, its required to initialize the lists with the numbers in a sliced way. This can be custom and hence knowledge of this can come handy. Let's discuss certain ways in which this can be done. Method #1 : Using list comprehension + enumerate() The list comprehension can do

7. www.php.cn › faq › 1784627How to protect C++ web applications from security threats?

   www.php.cn › faq › 1784627

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   10 hours ago · How to protect C web applications from security threats? Use secure coding techniques: validate user input, encode data. Configure the server correctly: enable firewalls, update software, audit configurations. Adopt a security framework: such as Boost.Asio or cppcms, which provides built-in security measures.

8. www.trycatchdebug.net › news › 1277828Creating a .NET WebAPI WebRTC Server for Real-Time Communication

   www.trycatchdebug.net › news › 1277828

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   10 hours ago · Learn how to establish a .NET WebAPI WebRTC server to facilitate real-time communication between users, allowing them to connect directly.

9. blog.csdn.net › qq_33060405 › article实现一个可独立测试的商业化游戏游戏场景管理器-CSDN博客

   blog.csdn.net › qq_33060405 › article

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   10 hours ago · 实现一个详细的、高扩展性、高性能、高可配置的C#语言的商业化游戏场景管理器是一个复杂的任务。. 这个任务涉及多个方面，包括场景的加载和卸载、资源管理、事件系统、配置管理等。. 下面是一个较为详细的实现示例，虽然不能涵盖所有细节，但可以作为 ...