When is innerexception null

Answered By: Dan Tao. Answered By: Ognyan Dimitrov. Is there a way to delete a character that has just been written using Console. Invalid cast from 'System. Int32' to 'System. Int32, mscorlib]]. The Inner Exception in C is a property of an exception class.

When there is a series of exceptions, then the most current exception obtains the previous exception details in the InnerException property. In order words, we can say that the InnerException property returns the original exception that caused the current exception. Let us say we have an exception inside a try block which is throwing DivideByZeroException and the catch block catches that exception and then tries to write that exception to a file.

However, if the file path is not found, then the catch block is also going to throw FileNotFoundException. Can someone help me?

I also included the error page in case anyone wants to know exactly where this exception error message will be shown at. But exception in InnerException could also contain an InnderException. If you want to access the deepest one you could use following recursive method:. NET actually has a method that would solve your problem, without you having to do the testing yourself.

GetBaseException will actually walk down the InnerException chain for you recursively, until it gets to the last exception where InnerException is null. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How can I check if the InnerException property of the Exception object is null?

Ask Question. Asked 3 years, 11 months ago. In this example, as the code tries to read the file, an IOException is thrown. The InnerException property, which holds a reference to the inner exception, is set upon initialization of the exception object. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Skip to main content. This browser is no longer supported.