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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Why try catch
Microsoft Dynamics AX (Archived)

Why try catch

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Posted on by Community Member

HI guys ,

I am little bit confused that ,

If I can do normal coding & with this functionality is working properly, then why we should use try catch in our methods.

your suggestions will be appreciated.

Thanks

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  • André Arnaud de Calavon Profile Picture
    André Arnaud de Cal... 303,691 Super User 2026 Season 1 on at

    Hi Mayur,

    With the try/catch you can capture errors and do specific actions with them. Usually the coding will just do what it needs to do.

    If you are using an external referenced dll, it might not be installed on the client, you can capture it and present a friendly message, the dll is missing in the installation.

    Or for long running tasks, you can capture e.g. a database lock and do a retry.

  • Dauvis Profile Picture
    Dauvis 170 on at

    The try/catch block are used to catch exceptions so that you can gracefully handle them.  The most common exceptions are the ones for dead lock and update conflict.  One way to use them is to have one that wraps a process or an atomic step in the process (the block will catch the errors in any methods that get called).

    I would like to add that the rules get a bit fuzzy when combining a try/catch with transactions (ttsBegin/ttsCommit).  Any exceptions will cause the whole transaction to be rolled back.  For more info: blogs.msdn.com/.../exception-handling-and-transactions.aspx

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