ListDictionary.IsReadOnly property is used to get a value indicating whether the ListDictionary is read-only or not.
Syntax:
public bool IsReadOnly { get; }
Return Value : This property always returns false.
Example:
// C# code to check if ListDictionary is read-only using System;
using System.Collections;
using System.Collections.Specialized;
class GFG {
// Driver code
public static void Main()
{
// Creating a ListDictionary named myDict
ListDictionary myDict = new ListDictionary();
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" );
// Checking if ListDictionary is read-only
Console.WriteLine(myDict.IsReadOnly);
}
} |
Output:
False
Note:
- A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.
- A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection. Therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.
- Retrieving the value of this property is an O(1) operation.
Reference: