C# | Dictionary.Count Property
This property is used to get the number of key/value pairs contained in the Dictionary.
Syntax:
public int Count { get; }
Return Value : The number of key/value pairs contained in the Dictionary.
Below are the programs to illustrate the use of above-discussed property:
Example 1:
using System;
using System.Collections.Generic;
class GFG {
public static void Main()
{
Dictionary< string , string > myDict =
new Dictionary< string , string >();
myDict.Add( "Australia" , "Canberra" );
myDict.Add( "Belgium" , "Brussels" );
myDict.Add( "Netherlands" , "Amsterdam" );
myDict.Add( "China" , "Beijing" );
myDict.Add( "Russia" , "Moscow" );
myDict.Add( "India" , "New Delhi" );
Console.WriteLine( "Total key/value pairs" +
" in myDict are : " + myDict.Count);
}
}
|
Output:
Total key/value pairs in myDict are : 6
Example 2:
using System;
using System.Collections.Generic;
class GFG {
public static void Main()
{
Dictionary< int , string > myDict =
new Dictionary< int , string >();
myDict.Add(1, "C" );
myDict.Add(2, "C++" );
myDict.Add(3, "Java" );
myDict.Add(4, "Python" );
myDict.Add(5, "C#" );
myDict.Add(6, "HTML" );
Console.WriteLine( "Total key/value pairs" +
" in myDict are : " + myDict.Count);
}
}
|
Output:
Total key/value pairs in myDict are : 6
Note: Retrieving the value of this property is an O(1) operation.
Reference:
Last Updated :
01 Feb, 2019
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