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This article mainly explains "how to create user-defined exceptions in C#". Friends who are interested may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to create user-defined exceptions in C#"!

Create a user-defined exception

You can also define your own exceptions. User-defined exception classes are derived from the ApplicationException class. The following example demonstrates this:

Using System

Namespace UserDefinedException

{

Class TestTemperature

{

Static void Main (string [] args)

{

Temperature temp = new Temperature ()

Try

{

Temp.showTemp ()

}

Catch (TempIsZeroException e)

{

Console.WriteLine ("TempIsZeroException: {0}", e.Message)

}

Console.ReadKey ()

}

}

}

Public class TempIsZeroException: ApplicationException

{

Public TempIsZeroException (string message): base (message)

{

}

}

Public class Temperature

{

Int temperature = 0

Public void showTemp ()

{

If (temperature = = 0)

{

Throw (new TempIsZeroException ("Zero Temperature found"))

}

Else

{

Console.WriteLine ("Temperature: {0}", temperature)

}

}

}

When the above code is compiled and executed, it produces the following results:

TempIsZeroException: Zero Temperature found throws an object

If the exception is derived directly or indirectly from the System.Exception class, you can throw an object. You can use the throw statement in the catch block to throw the current object, as follows:

Catch (Exception e) {... Throw e} at this point, I believe you have a deeper understanding of "how to create user-defined exceptions in C#". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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