Try to add duplicate entry to Dictionary : Dictionary « Collections Data Structure « C# / C Sharp






  1. C# / C Sharp
  2. Collections Data Structure
  3. Dictionary

Try to add duplicate entry to Dictionary

  

using System;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        Dictionary<string, string> openWith = new Dictionary<string, string>();
        openWith.Add("A", "a");
        openWith.Add("B", "b");
        openWith.Add("C", "c");

        try
        {
            openWith.Add("A", "a");
        }
        catch (ArgumentException)
        {
            Console.WriteLine("already exists.");
        }
    }
}








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9.Use the Remove method to remove a key/value pair.
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15.Clone a Dictionary
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