How to update the value in a Dictionary in C# ?

Published on January 24, 2016 by Senthil Kumar

Filed under C#

Last modified January 24, 2016

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Below is a sample code snippet demonstrating how to update the value that is stored within the dictionary using C#. We access the dictionary with the key as index and set the value.

How to update the value in a Dictionary in C# ?

using System;
using System.Collections.Generic;
using System.Xml.Linq;

namespace ACCode
    class Program
        static void Main(string[] args)
            Dictionary<string, string> dataDictionary = new Dictionary<string, string>();
            dataDictionary["key1"] = "Value 1";
            dataDictionary["key1"] = "Value 2";

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