How to differentiate between InvalidOperationException exception types?

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How to detect the InvalidOperationException type

Here is the inner exception message:

System.InvalidOperationException: ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.

I need to detect exactly this type of exceptions to handle it. Can I know its HResult number or the exception code? or another way?

This code may help

try
{
    //your code here...
}
catch (Exception exception) when (exception.InnerException is InvalidOperationException)
{
    var exceptionMessage = "ExecuteNonQuery requires an open and available Connection";
    if (exception.Message.Contains(exceptionMessage) || exception.InnerException.Message.Contains(exceptionMessage))
    {
        //handle it...
    }
}

InvalidOperationException Class (System), NET exception types. Exceptions can be thrown either by the runtime or the application code. This can be caused by bad code, while, other times,� This post describes when and how to raise the ArgumentException and InvalidOperationException standard .NET exception types. Exceptions can be thrown either by the runtime or the application code. This can be caused by bad code, while, other times, the problem is caused by bad user input that has not been accounted for in the application's code.

You can use a try/catch exception handling hierarchy, so that InvalidOperationException will be caught first and handled separately from other exception types such as the generic exception type.

try
{
    // Normal workflow up here
}
catch (System.InvalidOperationException ioex)
{
    // Handle InvalidOperationException
    Console.WriteLine(ioex.StackTrace);
}
catch (System.Exception ex)
{
    // Handle generic exception
    Console.WriteLine(ex.StackTrace);
}

However, your question suggests that this will not work for you, because you mention an inner exception. In that case you probably need to do some type checking on the inner exception like this:

try
{
    // Normal workflow up here
}
catch (System.Exception ex)
{
    if (ex.InnerException is InvalidOperationException) 
    { 
        // Handle InvalidOperationException
    }
    else 
    { 
        // Handle generic exception
    } 

    Console.WriteLine(ex.StackTrace);
}

Throwing ArgumentException and InvalidOperationException, The System.InvalidOperationException is a fairly common exception, as it is typically thrown when there's a failed attempt to invoke a method,� Different InvalidOperationException behavior between debug and runtime Simply: in release mode it isn't managing to detect your broken code as reliably. But: the code is still just as broken either way.

Could you give us more context? It would make it easier for us to answer your question.

However, if I understand you correctly, you try to process 'something' with the inner exception. As of C# 6 there are exception filters available. For more information about exception filters see Exception filters.

The documentation also provides an example.

In your specific case, you could use the exception filter as follows:

try
{
    // Do something that could cause a InvalidOperationException
}
catch (InvalidOperationException ex) when (ex.InnerException is SomeTypeOfException)
{
    // Handle this type of exception
}
catch (InvalidOperationException ex) when (ex.InnerException is AnotherSomeTypeOfException)
{
    // Handle this kind of exception
}

.NET Exception Handling, NET enabled many different languages across all sorts of platforms and devices, . NET uses namespaces out of the way, we can dive into the exception object should be next up, it throws an InvalidOperationException . InvalidOperationException: The exception that is thrown when a method call is invalid for the object's current state. InvalidProgramException: The exception that is thrown when a program contains invalid Microsoft intermediate language (MSIL) or metadata. InvalidTimeZoneException: The exception that is thrown when time zone information is invalid.

.NET Exception Handling: Exception Class Hierarchy, Initializes a new instance of the InvalidOperationException class with a specified HRESULT is a 32-bit value, divided into three different fields: a severity code,� InvalidOperationException ️ DO throw an InvalidOperationException if the object is in an inappropriate state. ArgumentException, ArgumentNullException, and ArgumentOutOfRangeException ️ DO throw ArgumentException or one of its subtypes if bad arguments are passed to a member. Prefer the most derived exception type, if applicable. ️ DO set the ParamName property when throwing one of the subclasses of ArgumentException.

System.InvalidOperationException, Learn the main C# exception handling best practices in today's post. The C# try and catch keywords are used to define a try catch block. InvalidOperationException – Common generic exception in a lot of libraries; System. Moving right along through the magical world of our .NET Exception Handling series, today we’re going to cover the System.InvalidOperationException.The System.InvalidOperationException is a fairly common exception, as it is typically thrown when there’s a failed attempt to invoke a method, caused by something other than invalid arguments passed to that method.

C# Exception Handling Best Practices, Regardless of the type of bug, it's a developer's goal to handle any of them gracefully InvalidOperationException: Occurs when a method call is invalid for the� Remarks. This class is provided as a means to differentiate between system exceptions and application exceptions. It is the base class of such exceptions as ArgumentException, FormatException, and InvalidOperationException.

Comments
  • Yeah, I know that, but as I know that the System.InvalidOperationException is thrown in many cases and I need to handle it in this specific case (when the message is like "ExecuteNonQuery requires an open and available Connection. The connection's current state is closed"). Also, I don't need to compare the exception message as a string.