What is the purpose of throw keyword in C#?

Throw is used to throw exceptions explicitly from your code. It is used for the following purposes:



• To throw pre-defined exceptions from your code
• To throw user-defined exceptions from your code
• To re-throw an exception caught in the catch block to the calling method
Here is an example demonstrating usage of throw keyword to throw user-defined exception:
class sampleException:Exception {
public sampleException(){
Console.WriteLine(“Executing User Defined Exception..”);
}
}
class sampleClass {
public static void Main() {
try {
throw new sampleException();
}
catch(Exception ex) {
Console.WriteLine(“Exception Caught:” + ex.ToString());
}

}
}

Output of this code will be:

Executing User Defined Exception..
Exception Caught: sampleException: Exception of type ‘sampleException’ was thrown at sampleClass.Main()


FREE Subscription

Subscribe to our mailing list and receive new articles
through email. Keep yourself updated with latest
developments in the industry.

Name:
Email:

Note : We never rent, trade, or sell my email lists to
anyone. We assure that your privacy is respected
and protected.

Visit .NET Programming Tutorial Homepage

______________________________________________________

Recommended Resource

| What is Private Access Modifier in C#? | What is Protected Access Modifier in C#? | What is Protected Internal Access Modifier in C#? | What is Public Access Modifier in C#? | What is the difference between virtual and abstract keywords in .NET? | What is the importance of Microsoft Application Blocks in .NET Architecture? | What is the need for Factory Method in C# | What is the purpose of ArrayList in .NET? | What is the purpose of Datareader in ADO.NET? | What is the purpose of Dataset in ADO.NET? | What is the purpose of finally block in C#? | What is the purpose of interlocked class in .NET? | What is the purpose of main() function in C# | What is the purpose of ManualResetEvent in .NET? | What is the purpose of sealed method in C#? | What is the purpose of Thread.Join() method in .NET? | What is the purpose of Thread.Sleep() method in .NET? | What is the purpose of throw keyword in C#? | What is the usage of ENUM in .NET? |


“Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.”

| Privacy Policy for www.dotnet-guide.com | Disclosure | Contact |

Copyright - © 2004 - 2023 - All Rights Reserved.