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C# | Check if ListDictionary is synchronized (thread safe)

C# | Check if ListDictionary is read-only

Last Updated : 01 Feb, 2019

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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:

CSHARP

// 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:

https://docs.microsoft.com/en-us/dotnet/api/system.collections.specialized.listdictionary.isreadonly?view=netframework-4.7.2

C# | Check if ListDictionary is synchronized (thread safe)

S

Sahil_Bansall

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Article Tags :

C#
CSharp-Specialized-Namespace
CSharp-Specialized-ListDictionary

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