Exception handling Error

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Posted on by Zohan

Hi,

there's a query related to exceptional handling. In C# or .net we can use try catch method and print our own customized message, but as per dynamics we can't do that . We just throw an exception which generally system generate. I want to know that can we throw our customized message in try catch method ? if anyone have answer then do let me know with example .

i've searched a class CLRInterpo class but don't know how to consume it in try catch method

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Martin Dráb 237,976 Most Valuable Professional on at

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No, you can't throw messages in either .NET or AX.

In .NET, you can throw exception objects, i.e. instances of classes extending System.Exception. These objects have several properties, such as Message (and StackTrack, InnerException etc.).

In X++, you throw an exception enum value, such as throw Exception::Error. There is no object with any extra properties (unless you actually execute CIL code generated from X++, which is a bit different case). But you can add messages to infolog when you're throwing an exception. That's exactly what error() function is for - it add a message to infolog and return Exception::Error, which you can use in throw statement (e.g. throw error("My error message").

Maybe you should explain your scenario, because I don't understand what you mean by saying that "w just throw an exception which generally system generate".

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Zohan 2 on at

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Martin

Consider an example.

try

{

//code logic

}

catch(exception::Example)

{

throw exception::something

}

can we throw our own customised exception ? or just pass exception thorugh info ?

And what CLRInterpo class is used for ?

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Martin Dráb 237,976 Most Valuable Professional on at

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You can use throw error("Custom error message"). Also note that Exception::Example isn't valid code; the Exception enum type doesn't have any element called Example.

You can read about CLRInterop class in AX documention.

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Zohan 2 on at

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Martin it was just an example. anyways thanks.

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