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1. Top results related to how to initialize a dictionary in c# with source code

   • Initialize a Dictionary with values in C# 2.0

     Top Answer

     Answered Jul 19, 2013 · 10 votes

     But it doesn't work in C# 2.0. Is there any workaround for this without using Add or basing on an already existing collection?

     No. The closest I can think of would be to write your own DictionaryBuilder type to make it simpler:

     public class DictionaryBuilder<TKey, TValue>{ private Dictionary<TKey, TValue> dictionary = new Dictionary<TKey, TValue> dictionary(); public DictionaryBuilder<TKey, TValue> Add(TKey key, TValue value) { if (dictionary == null) { throw new InvalidOperationException("Can't add after building"); } dictionary.Add(key, value); return this; } public Dictionary<TKey, TValue> Build() { Dictionary<TKey, TValue> ret = dictionary; dictionary = null; return ret; }}

     Then you can use:

     Dictionary<string, int> x = new DictionaryBuilder<string, int>() .Add("Foo", 10) .Add("Bar", 20) .Build();

     This is at least a single expression still, which is useful for fields where you want to initialize at the point of declaration.

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   • How to create a Hash Code from Source Code in C#?

     Top Answer

     Answered May 15, 2019 · 4 votes

     Even if I rebuild my project

     You may use Deterministic Build, then it will produce the same binaries in each build being made out of same source codes. Then you may get the hash of binaries.

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     2/5

   • In C#: How to declare a generic Dictionary with a type as key and an IEnumerable<> of that type as value?

     Top Answer

     Answered Dec 01, 2017 · 21 votes

     You may not even need a dictionary to be able to do this - but that depends on your needs. If you only ever need 1 such list per type per appdomain (i.e. the "dictionary" is static), the following pattern can be efficient and promotes type-inference nicely:

     interface IBase {}-static class Container { static class PerType<T> where T : IBase { public static IEnumerable<T> list; } public static IEnumerable<T> Get<T>() where T : IBase => PerType<T>.list; public static void Set<T>(IEnumerable<T> newlist) where T : IBase => PerType<T>.list = newlist; public static IEnumerable<T> GetByExample<T>(T ignoredExample) where T : IBase => Get<T>(); }

     Note that you should think carefully before adopting this approach about the distinction between compile-time type and run-time type. This method will happily let you store a runtime-typed IEnumerable<SomeType> variable both under SomeType and -if you cast it- under any of SomeType's base types, including IBase, with neither a runtime nor compiletype error - which might be a feature, or a bug waiting to happen, so you may want an if to check that.

     Additionally, this approach ignores threading; so if you want to access this data-structure from multiple threads, you probably want to add some locking. Reference read/writes are atomic, so you're not going to get corruption if you fail to lock, but stale data and race conditions are certainly possible.

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     3/5

   • How to initialize a double array with various values using switch case in C#

     Top Answer

     Answered Jul 15, 2015 · 0 votes

     You were close, you just have to use new to initialize the arrays:

     double [] test1; int value; // Which I will get it from DBSwitch (value){case 1: test1 = new double[] {1, 0, 0,1}; break;case 2: test1 = new double[] {0, 0, 0,1}; break;case 3: test1 = new double[] {0, 0, 1,1}; break;case 4: test1 = new double[] {1, 0, 1,1}; break;}

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     4/5

   • How to use a string as code to initialize another string in C#?

     Top Answer

     Answered Nov 21, 2023 · 0 votes

     Use Regex Unescape(String input) method it returns a string of characters with any escaped characters converted to their unescaped form.

     Read official documentation here.

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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 - C#

   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# | Microsoft Learn

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

   stackoverflow.com › questions › 17047602

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   Suppose we have a dictionary like this: Dictionary<int, string> dict = new Dictionary<int, string>(); dict.Add(1, "Mohan"); dict.Add(2, "Kishor"); dict.Add(3, "Pankaj"); dict.Add(4, "Jeetu"); We can initialize it as follows. Dictionary<int, string> dict = new Dictionary<int, string>. {.

4. People also ask

   How to initialize a dictionary?

   • 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 We can also initialize a dictionary using an index initializer, as shown below.

   Initialize a Dictionary in C# | Techie Delight

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

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   How to initialize a dictionary in c# 6?

   • Another way to initialize a dictionary is object initializer introduced in C# 6: To add an item to a dictionary, we use the Add method. For example: This would add "Adam" and his age of 24 to the nameToAge dictionary. To remove an item from a dictionary, we use the Remove method. For example: This would remove "Adam" from the nameToAge dictionary.

   C# Dictionary: Complete Guide [2023] - Josip Miskovic

   josipmisko.com/posts/c-sharp-dictionary

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   How to create a dictionary in C#?

   • Dictionary Builder To create a dictionary with several entries, it’s better to create a type-safe DictionaryBuilder class. Then we can use Builder’s Add() method, which takes key-value pairs instead of a dictionary. The Add() associates key with value in the built dictionary. That’s all about initializing a Dictionary in C#.

   Initialize a Dictionary in C# | Techie Delight

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

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   How to use idiomatic C# dictionaries?

   • You can use dynamic and something like expando object to get behavior similar to dynamically typed languages. But idiomatic C# uses static typing with classes that define your members instead of dictionaries. Your outer dictionary is fine, your inner dictionary is ugly, since it should be a class. You could use dictionary initializes.

   How to initialize a dictionary containing lists of dictionaries?

   stackoverflow.com/questions/7460702/how-to-initialize-a-dictionary-containing-lists-of-dictionaries

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5. stackoverflow.com › questions › 7460702c# - How to initialize a dictionary containing lists of ...

   stackoverflow.com › questions › 7460702

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   asked Sep 18, 2011 at 9:46. mawimawi. 4,292 4 34 52. Go read the manual! :) – bzlm. Sep 18, 2011 at 9:48. 7. Your main problem is that you want to write python in C#. C# is mainly statically typed, and you should take advantage of that. You can use dynamic and something like expando object to get behavior similar to dynamically typed languages.

6. 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.

7. 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.

8. www.tutorialsteacher.com › csharp › csharp-dictionaryC# Dictionary - TutorialsTeacher.com

   www.tutorialsteacher.com › csharp › csharp-dictionary

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   . //creating a dictionary using collection-initializer syntax var cities = new Dictionary<string, string>(){ {"UK", "London, Manchester, Birmingham"}, {"USA", "Chicago, New York, Washington"}, {"India", "Mumbai, New Delhi, Pune"} }; . foreach(var kvp in cities) Console.WriteLine("Key: {0}, Value: {1}", kvp.Key, kvp.Value); Try it.

9. 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 };