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  1. Top results related to how to initialize a dictionary in c# with sql server

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  2. stackoverflow.com › questions › 40180874sql server - C# Populate dictionary directly from ...

    Oct 21, 2016 · 3. In a program that I've been working on, there are three steps to get the data into a Dictionary that's been created: Code: .ToDictionary(key => key.Field<string>("code"), value => value.Field<string>("customerText")); My question is, is it possible to “cut out the middleman,” so to speak, and pull the data from the SqlDataReater directly ...

    Code sample

    using (var reader = myLookup.ExecuteReader()) {
      while (reader.Read()) {
      customerLookup[(string)reader["code"]] = (string)reader["customerText"];
      }
    }...

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

    I am creating a dictionary in a C# file with the following code: private readonly Dictionary<string, XlFileFormat> FILE_TYPE_DICT = new Dictionary<string, XlFileFormat&gt; ...

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

    • Overview
    • Example
    • See also

    A Dictionary contains a collection of key/value pairs. Its Add method takes two parameters, one for the key and one for the value. One way to initialize a Dictionary , or any collection whose Add method takes multiple parameters, is to enclose each set of parameters in braces as shown in the following example. Another optio...

    See full list on learn.microsoft.com

    In the following code example, a Dictionary is initialized with instances of type StudentName. The first initialization uses the Add method with two arguments. The compiler generates a call to Add for each of the pairs of int keys and StudentName values. The second uses a public read / write indexer method of the Dictionary class:

    Note the two pairs of braces in each element of the collection in the first declaration. The innermost braces enclose the object initializer for the StudentName, and the outermost braces enclose the initializer for the key/value pair that will be added to the students Dictionary . Finally, the whole collection initializer for the dictionary is enclosed in braces. In the second initialization, the left side of the assignment is the key and the right side is the value, using an object initializer for StudentName.

    See full list on learn.microsoft.com

    •C# Programming Guide

    •Object and Collection Initializers

    See full list on learn.microsoft.com

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

    Sep 12, 2023 · C# – Initialize a dictionary. 09/12/2023 by Maclain Wiltzer. 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 }.

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

    Dec 8, 2023 · The simplest way to initialize a dictionary in C# is to create an empty dictionary. The following code illustrates how to do this: // Define a new dictionary of string keys and integer values Dictionary dict = new Dictionary (); In the above code, we have created a dictionary, "dict", with keys of type string and values of type int.

  8. dotnettutorials.net › lesson › dictionary-genericDictionary Collection Class in C# - Dot Net Tutorials

    Now, if you want to add elements i.e. a key/value pair into the Dictionary, then you need to use the following Add () method of the Generic Dictionary Collection Class in C#. Add (TKey key, TValue value): The Add (TKey key, TValue value) method is used to add an element with the specified key and value into the Dictionary.

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

    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: 2. Index Initializer. We can also initialize a dictionary using an index initializer, as shown below. Internally, it uses the ...

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