C# | Check if Hashtable is readonly (original) (raw)

C# | Check if Hashtable is read-only

Last Updated : 01 Feb, 2019

Hashtable.IsReadOnly property is used to get a value indicating whether the **_Hashtable _**is read-only or not.Syntax:

public virtual bool IsReadOnly { get; }

Return Value: This property returns true if the Hashtable is read-only otherwise it returns false. The default is false. Below programs illustrate the above-discussed property:Example 1:

CSharp `

// C# code to check if Hashtable // is read-only or not using System; using System.Collections;

class GFG {

// Driver code
public static void Main()
{

    // Creating a Hashtable
    Hashtable myTable = new Hashtable();

    // Adding elements in Hashtable
    myTable.Add("G", "Geeks");
    myTable.Add("C", "C#");
    myTable.Add("D", "Data Structures");
    myTable.Add("Q", "Quiz");

    // Checking if Hashtable is read-only or not
    // this will return false
    Console.WriteLine(myTable.IsReadOnly);
}

}

`

Example 2:

CSharp `

// C# code to check if Hashtable // is read-only or not using System; using System.Collections;

class GFG {

// Driver code
public static void Main()
{

    // Creating a Hashtable
    Hashtable myTable = new Hashtable();

    // Adding elements in Hashtable
    myTable.Add("1", "C");
    myTable.Add("2", "C#");
    myTable.Add("3", "C++");
    myTable.Add("4", "HTML");
    myTable.Add("5", "CSS");

    // Checking if Hashtable is read-only or not
    // this will return false
    Console.WriteLine(myTable.IsReadOnly);
}

}

`

Note:

Reference:

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