This method is used to remove the value with the specified key from the SortedDictionary<TKey, TValue>.
Syntax:
public bool Remove (TKey key);
Return Value: This method returns true if the element is successfully found and removed; otherwise it returns false. This method returns false if key is not found in the SortedDictionary.
Exception: This method will give ArgumentNullException if the key is null.
Below are the programs to illustrate the use of the above-discussed method:
Example 1:
// C# code to remove the entry with // the specified key from the // SortedDictionary using System;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Create a new dictionary of
// strings, with string keys.
SortedDictionary< string , string > myDict =
new SortedDictionary< string , string >();
// Adding key/value pairs in myDict
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" );
// To get count of key/value pairs in myDict
Console.WriteLine( "Total key/value pairs"
+ " in myDict are : " + myDict.Count);
// Remove the entry with the specified
// key from the Dictionary
myDict.Remove( "Russia" );
Console.WriteLine( "After remove operation" );
// To get count of key/value pairs in myDict
Console.WriteLine( "Total key/value pairs"
+ " in myDict are : " + myDict.Count);
}
} |
Output:
Total key/value pairs in myDict are : 6 After remove operation Total key/value pairs in myDict are : 5
Example 2:
// C# code to remove the entry with // the specified key from the // SortedDictionary using System;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Create a new SortedDictionary
// of ints, with int keys.
SortedDictionary< int , int > myDict =
new SortedDictionary< int , int >();
// Adding key/value pairs in myDict
myDict.Add(9, 8);
myDict.Add(3, 4);
myDict.Add(4, 7);
myDict.Add(1, 7);
// To get count of key/value pairs in myDict
Console.WriteLine( "Total key/value pairs "
+ "in myDict are : " + myDict.Count);
// Remove the entry with the specified
// key from the Dictionary
myDict.Remove(9);
Console.WriteLine( "After remove operation" );
// To get count of key/value pairs in myDict
Console.WriteLine( "Total key/value pairs in"
+ " myDict are : " + myDict.Count);
}
} |
Output:
Total key/value pairs in myDict are : 4 After remove operation Total key/value pairs in myDict are : 3
Reference: