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1. Top results related to how to initialize a dictionary in c# windows 10

   • How to get local host name in C# on a Windows 10 universal app

     Top Answer

     Answered Oct 01, 2015 · 20 votes

     You need to use NetworkInformation.GetHostNames

     .

     var hostNames = Windows.Networking.Connectivity.NetworkInformation.GetHostNames();-

     But note that this method will return multiple HostNames.

     In my case, it returns four HostNames of which DisplayNames are MyComputerName, MyComputerName.local plus two IP addresses.

     So I guess it's probably safe to do -

     using Windows.Networking;using Windows.Networking.Connectivity;--var hostNames = NetworkInformation.GetHostNames();var hostName = hostNames.FirstOrDefault(name => name.Type == HostNameType.DomainName)?.DisplayName ?? "???";-

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     1/5

   • 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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     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 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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     4/5

   • 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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     5/5

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2. learn.microsoft.com › en-us › dotnetHow to initialize a dictionary with a collection initializer ...

   learn.microsoft.com › en-us › dotnet

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   Mar 15, 2024 · Learn how to initialize a dictionary in C#, using either the Add method or an index initializer. This example shows both options. How to initialize a dictionary with a collection initializer - C# Programming Guide - C# | Microsoft Learn

3. stackoverflow.com › questions › 17047602Proper way to initialize a C# dictionary with values

   stackoverflow.com › questions › 17047602

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   With C# 6.0, you can create a dictionary in the following way: var dict = new Dictionary<string, int> { ["one"] = 1, ["two"] = 2, ["three"] = 3 }; It even works with custom types.

4. People also ask

   How to initialize a dictionary in C#?

   • This post will discuss how to initialize a dictionary in C#. 1. Collection Initializer To initialize a dictionary, we can enclose each set of key-value in curly braces. Internally for each pair, the compiler makes a call to Dictionary’s Add() method. This is demonstrated below: 2. Index Initializer

   Initialize a Dictionary in C# | Techie Delight

   www.techiedelight.com/initialize-dictionary-csharp/

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   How to initialize a dictionary with values?

   • You can declare a dictionary and initialize it with values by using the collection initializer syntax. Within the initializer block, you have two options for adding key/value pairs to the dictionary: Indexer syntax, like [key] = value. Curly brace syntax, like { key, value }. I’ll show examples of both options below.

   C# - Initialize a dictionary | MAKOLYTE

   makolyte.com/csharp-initialize-a-dictionary/

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   How do I create a dictionary in C#?

   • With C# 6.0, you can create a dictionary in the following way: ["one"] = 1, ["two"] = 2, ["three"] = 3 It even works with custom types. That's a new syntax I wasn't familiar with. Thanks. I didn't know this syntax, thanks. It makes it easy to copy and paste dictionaries of data from other languages such as Lua.

   Proper way to initialize a C# dictionary with values

   stackoverflow.com/questions/17047602/proper-way-to-initialize-a-c-sharp-dictionary-with-values

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   How to initialize a dictionary with key-value pairs?

   • Besides creating an empty dictionary, we can also initialize a dictionary with some key-value pairs at the time of creation. Consider the following example: { "apple", 1 }, { "banana", 2 }, { "cherry", 3 } In this code snippet, we have created a dictionary, "dict", and initialized it with three key-value pairs.

   Guide to Initialize a Dictionary in C# | C# Tutorial

   www.gyata.ai/c-sharp/c-initialize-dictionary/

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5. www.techiedelight.com › initialize-dictionary-csharpInitialize a Dictionary in C# | Techie Delight

   www.techiedelight.com › initialize-dictionary-csharp

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   Apr 6, 2024 · 1. Collection Initializer. To initialize a dictionary, we can enclose each set of key-value in curly braces. Internally for each pair, the compiler makes a call to Dictionary’s Add () method. This is demonstrated below: Download Run Code. 2. Index Initializer. We can also initialize a dictionary using an index initializer, as shown below.

6. stackoverflow.com › questions › 55589251smartest way to initialize dictionary in c# - Stack Overflow

   stackoverflow.com › questions › 55589251

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   Apr 9, 2019 · Is there a smarter way to define a dictionary like this: class field definition: public Dictionary<string, object> paramList { get; set; } access later: dt.paramList = new Dictionary<string, object> { { "id", rt_id }, { "gen", rt_gen }, { "rtext", rchar } };

7. makolyte.com › csharp-initialize-a-dictionaryC# - Initialize a dictionary | MAKOLYTE

   makolyte.com › csharp-initialize-a-dictionary

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   Sep 12, 2023 · Option 1 – Initialize dictionary with values using indexer syntax. Here’s an example of initializing a dictionary with multiple key/value pairs using the indexer syntax (i.e. [key]=value): using System.Collections.Generic; var dictionary = new Dictionary< string, int >() { ["Bob"] = 1, ["Linda"] = 2, ["Teddy"] = 3}; Code language: C# (cs)

8. www.gyata.ai › c-sharp › c-initialize-dictionaryGuide to Initialize a Dictionary in C# | C# Tutorial

   www.gyata.ai › c-sharp › c-initialize-dictionary

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   Dec 8, 2023 · 1. Initializing an Empty Dictionary. 2. Initializing a Dictionary with Key-Value Pairs. 3. Initializing a Dictionary from an Array, List, or Other Enumerable. 4. Tips, Tricks, and Common Pitfalls. 4.1 Duplicate Keys. 4.2 Null Keys. 4.3 Key Not Found. 5. Conclusion.

9. josipmisko.com › posts › c-sharp-dictionaryC# Dictionary: Complete Guide [2023] – Josip Miskovic

   josipmisko.com › posts › c-sharp-dictionary

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   Jan 26, 2023 · To initialize a dictionary in C#, we first need to provide the type for the key and the type for the value. For example, for a dictionary that stores the name and age of a person, the initialization would be: C# Dictionary<string, int> nameToAge = new Dictionary<string, int>(); The first type inside the angle brackets is the key type.