C# | Check if Hashtable has a fixed size (original) (raw)

Last Updated : 01 Feb, 2019

Hashtable.IsFixedSize Property is used to get a value which indicates whether the **_Hashtable _**has a fixed size or not.Syntax:

public virtual bool IsFixedSize { get; }

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

CSharp `

// C# code to check if Hashtable // has a fixed size 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 has a fixed size
    // this will return false
    Console.WriteLine(myTable.IsFixedSize);
}

}

Example 2:

CSharp `

// C# code to check if Hashtable // has a fixed size using System; using System.Collections;

class GFG {

// Driver code
public static void Main()
{

    // Creating a Hashtable and 
    // giving it a size of 4
    Hashtable myTable = new Hashtable(4);

    // Adding elements in Hashtable
    myTable.Add("1", "C");
    myTable.Add("2", "C#");
    myTable.Add("3", "DS");
    myTable.Add("4", "Java");
    myTable.Add("5","HTML");
    myTable.Add("6", "CSS");

    // Checking if Hashtable has a fixed size
    // this will return false
    Console.WriteLine(myTable.IsFixedSize);
}

}

Note:

A collection with a fixed size does not allow the addition or removal of elements after the collection is created, but it allows the modification of existing elements.
A collection with a fixed size is simply a collection with a wrapper that prevents adding and removing elements. Therefore, if changes are made to the underlying collection, including the addition or removal of elements, the fixed-size 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.hashtable.isfixedsize?view=netframework-4.7.2

C# | Check if Hashtable has a fixed size (original) (raw)

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