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C# Error Handling Comexception


Use the numbers 1-9 to equal 1150 Is there a single word for people who inhabit rural areas? I'm a new convert from 2.0, mainly for the new multi-threading capabilities. –winwaed Feb 3 '11 at 16:06 add a comment| 2 Answers 2 active oldest votes up vote 6 down It will 'delete' (set to 0) the left half of the uint, so it can never be == 0x800A03EC, right? –accolade Mar 5 '12 at 17:16 add a comment| up vote The COMException class can also be used to return specific HRESULT's to unmanaged clients. http://iembra.org/error-code/comexception-error-code.php

C# try { IEnvelope env = new EnvelopeClass(); env.PutCoords(0D, 0D, 10D, 10D); ITransform2D trans = (ITransform2D) env; trans.Rotate(env.LowerLeft, 1D); } catch (COMException COMex) { if (COMex.ErrorCode == -2147220984) MessageBox.Show("You cannot rotate It provides access to the value of the original HRESULT via the ErrorCode property, which you can test, to find out which error condition occurred. A catch statement with no type will catch arbitrary objects as well as objects inheriting Exception. –technophile Sep 29 '08 at 20:55 add a comment| up vote 3 down vote This In Visual Basic 6 however, an error condition in an HRESULT would populate the Err object and raise an error. https://msdn.microsoft.com/en-us/library/awy7adbx(v=vs.110).aspx

C# Comexception Was Unhandled

Many different types of exceptions are provided by the .NET Framework, and it is also possible to create your own exceptions. COM Interop HRESULTS or exceptions other than E___FAIL will map to COMException, and finally at the end you have SEHException for E_FAIL or any other unmapped exception. Protected†Methods Finalize(inherited from†System.Object) See base class member description: System.Object.FinalizeDerived from System.Object, the primary base class for all objects.

Catch divEx As DivideByZeroException // Perform divide by zero error handling. No, there isn't. :( This is my code: try { myCOM.callSomeMethod(); } catch (System.Runtime.InteropServices.COMException e) { Console.WriteLine("Exception: {0}", e.Message); Console.WriteLine("Exception code: {0}", e.ErrorCode); Console.WriteLine("Exception description: {0}", e.InnerException.Message); } Nov 17 '05 Again, the following code example uses the ApplicationException constructor to set the InnerException and message properties:   [C#]

 catch (System.Exception ex) { System.ApplicationException appEx = new ApplicationException( Com Exception C++ How to deal with a very weak student? 

Radio button group label for employee leaving, terminated, or retired Even sharper upper bound for prime product? Comexception Was Caught In C# MemberwiseClone(inherited from†System.Object) See base class member description: System.Object.MemberwiseCloneDerived from System.Object, the primary base class for all objects. It is 0x80004005. http://stackoverflow.com/questions/1426147/catching-comexception-specific-error-code It is advisable therefore to enclose all code that may raise an error in a COM component within a Try block with a corresponding Catch block to catch a COMException.

What should be inside catch()? Comexception Error Codes List In this topic Exception handling Using exceptions Try, Catch, and Finally construct Code without exception handling Errors from COM components Throwing errors and the exception hierarchy Writing your error handler Exception Public†Methods Equals(inherited from†System.Object) See base class member description: System.Object.EqualsDerived from System.Object, the primary base class for all objects. In this example, as the code tries to read the file, an IOException is thrown.

Comexception Was Caught In C#

If the property does not, the .NET Framework generates a MissingMethodException exception (with a CORE_E_MISSINGMETHOD HRESULT ). http://codereview.stackexchange.com/questions/582/handling-com-exceptions-busy-codes share|improve this answer answered Sep 29 '08 at 20:52 Michael Damatov 7,50243568 1 It is possible to emit or otherwise create IL that throws an arbitrary object. C# Comexception Was Unhandled Return to top Property: InnerException (read-only) InheritedSee base class member description: System.Exception.InnerException Summary Gets the Exception instance that caused the current exception. C# Comexception Identifying exceptions that can be raised Destructors and exceptions Browse more C# / C Sharp Questions on Bytes Question stats viewed: 12659 replies: 11 date asked: Nov 17 '05 Follow this

A hybrid of the two is probably your best bet. C# Syntax: public Exception†InnerException {get;} Remarks When an exception X is thrown as a direct result of a previous exception Y, the InnerException property of X should contain Dev centers Windows Office Visual Studio Microsoft Azure More... For all exceptions in a chain of exceptions, the GetBaseException method must return the same object (the base exception). Com Exception Error Code -2146827284

Best way to learn maths - proofs or exercises? P: n/a Petar Popara How can I catch COM exceptions (IErrorInfo) in C#? We appreciate your feedback. A long sequence of Excel calls can be trapped with one handler.

For example, E_ACCESSDENIED becomes UnauthorizedAccessException, E_OUTOFMEMORY becomes OutOfMemoryException, and so on.If the HRESULT is a custom result or if it is unknown to the runtime, the runtime passes a generic COMException Comexception Hresult check out: http://msdn.microsoft.com/library/de...ptiontopic.asp Thank you. Can I reduce "couldn't find anything" to "nothing" in this sentence?

The constructs used may be new to Visual Basic users but should be familiar to users of C++ or Java.

Dev centers Windows Office Visual Studio Microsoft Azure More... The code that handles the second exception can make use of the additional information from the earlier exception to handle the error more appropriately. the 'sense' of the boolean flag: Again old habits - mainly from the days when it made sense to minimize operations even in a trivial case like this. Com Error Code Use Environment.StackTrace to get stack trace information when no exception is being thrown.

For a given chain, there can be exactly one exception that is the root cause of all other exceptions in the chain. This constructor sets the properties of the Exception object as shown in the following table. The Exception.InnerException property returns the same value that is passed into the constructor, or null if the Exception.InnerException property does not supply the inner exception value to the constructor. Why?

C# ... The flag indicates a repeat of the loop is required due to a 'busy' return from Excel. bNotSuccess = true; // ...try again } else { // Re-throw! OutOfMemoryException) In the case of an un-mappable (E_FAIL) or unknown code it will just throw an SEHException instance.

If a method throws an exception in managed code, the common language runtime can pass an HRESULT to a COM object. Return to top Overloaded ctor #4 Summary Initializes a new instance of the COMException class with a specified error message and a reference to the inner exception that is the cause C# Syntax: public virtual string†StackTrace {get;} Remarks The execution stack keeps track of all the methods that are in execution at a given instant. My B2 visa was stamped for six months even though I only stayed a few weeks.