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C# - CLSCompliant Attribute Example

Here, we will learn about the CLSCompliant attribute in C# with the help of example.
Submitted by Nidhi, on October 31, 2020 [Last updated : March 23, 2023]

CLSCompliant Attribute

The CLSCompliant attribute is used to generate a warning message when a code element is not CLS compliant.

C# program to demonstrate the example of CLSCompliant attribute

The source code to demonstrate the CLSCompliant attribute is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//C# program to demonstrate the 
//CLSCompliant attribute.

using System; 

[assembly:CLSCompliant(true)]   
public class Sample
{ 
    public uint num; 
} 
  
class Program
{ 
    public static void Main(string[] args) 
    { 
        Console.WriteLine("Hello world"); 
    } 
} 

Output

Compilation succeeded - 1 warning(s)
Hello world

Explanation

In the above program, we created the two classes Sample and Program. Here, we used the CLSCompliant attribute with Sample class. Here, the declaration of num data member will generate a warning. Because the CLSCompliant attribute is used to generate a warning message when a code element is not CLS compliant.

The Program class contains the Main() method. The Main() method is the entry point for the program. Here, we printed the "Hello world" message on the console screen.

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