How to Check if the Enum Value is Defined in C# ?

Published on March 31, 2013 by abundantcode

Filed under C#

Last modified March 31, 2013

Print this page

rate 1 star rate 2 star rate 3 star rate 4 star rate 5 star
Your rating: none, Average: 0 (0 votes)

This article have been viewed 3542 times

There are times when it is necessary to check if the constant name or numeric value is defined in the Enum . We can use the Enum.IsDefined method to verify this.

How to Check if the Enum Value is Defined in C# ?

Below is a sample code to demonstrate how to Check if the Enum Value is Defined in C# using Enum.IsDefined method. The Enum.IsDefined takes either the constant name or integer value as its second parameter which is shown in the below code snippet.

internal enum ProgrammingLanguages

{

CSharp,

Java = 1,

Erlang = 2,

Delphi = 3,

PHP

}
public partial class Form1 : Form

{

private void Form1_Load(object sender, EventArgs e)

{

// Using Constant

if (!Enum.IsDefined(typeof(ProgrammingLanguages), "Objective-C"))

MessageBox.Show("This language is not defined.");

// Using Integer

if (!Enum.IsDefined(typeof(ProgrammingLanguages), 22))

MessageBox.Show("This language is not defined.");

}

}
0saves
If you enjoyed this post, please consider leaving a comment or subscribing to the RSS feed to have future articles delivered to your feed reader.

1 Comment

  1. Interesting .NET Links – April 2 , 2013 | TechBlog
    April 2, 2013 - 9:55 pm

Leave a Comment


x

You might be Interested in these Posts

C# and Lambda - Finding all the elements of an integer array less than 35

Here's a sample code snippet demonstrating how to find all the elements of an integer array that is ...

C# and LINQ - Finding all the elements of an integer array less than 35

Here's a sample code snippet demonstrating how to find all the elements of an integer array that is ...

How to get the CommandLine of the Current Application in C# ?

You might need to get the information that contains the commandline which is used to execute the cur...