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What should exceptions be thrown for invalid or?
Exceptions are to handle exceptional situation, not bugs, and not user’s (i.e. API consumer) shortfalls. Throwing exceptions for invalid arguments is rude, unless you write a library. Assertions don’t need to be tested, while throw assertions do, and test against ArgumentNullException looks ridiculous (try it).
When to throw invalidoperationexception in a system?
System.InvalidOperationException should be thrown if the argument is valid, but the object is in a state where the argument shouldn’t be used. InvalidOperationException is used in cases when the failure to invoke a method is caused by reasons other than invalid arguments.
How to use parameter validation in PowerShell without throwing?
Param ( [Parameter (Mandatory=$false)] [SWITCH]$myparam1, [Parameter (Mandatory=$false)] [SWITCH]$myparam2, [parameter (Mandatory=$false,ValueFromRemainingArguments=$true)] [STRING]$dummy ) if ($dummy -eq anythingYouDontLike) throwAMessageOrSomething. Thanks for contributing an answer to Stack Overflow!
When to call the invalid parameter handler in C?
If an invalid parameter is found, the invalid parameter handler is called. When a C Runtime Library function detects an invalid parameter, it captures some information about the error, and then calls a macro that wraps an invalid parameter handler dispatch function.
How to create an invalidoperationexception class in Windows?
Protocol Violation Exception System. Net. Web Exception System. Object Disposed Exception System. Runtime. Compiler Services. Switch Expression Exception System. Threading. Channels. Channel Closed Exception System. Windows. Automation. Element Not Enabled Exception System. Windows. Resource Reference Key Not Found Exception More…
When do I throw an invalidcastexception exception?
An InvalidCastException exception is thrown when the conversion of an instance of one type to another type is not supported.
Do you use argumentexception or invalidoperationexception?
ArgumentException sounds logical, but it’s a type argument rather than a normal argument, which could easily confuse things. Should I introduce my own TypeArgumentException class? Use InvalidOperationException? NotSupportedException? Anything else? I’d rather not create my own exception for this unless it’s clearly the right thing to do.