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.

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

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

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