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Plug-in That blocks Delete and Pops Message

Answered Plug-in That blocks Delete and Pops Message

  • Monday, June 18, 2012 7:02 PM
     
     
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    BACKGROUND

    I am writing a plug-in that needs to fire when a record deletion is attempted and a IsPrimary (Boolean) field on the record is has a true value, I need to stop the delete from happening and pop a messge informing the user: "Cannot delete Primary Record."

    QUESTIONS

    This involves two things that I have not done in a plug-in before:  (1) killing the transaction, and (2) Displaying a user message. 

    I can't find any examples of either of these actions for a plug-in.  I know to kill the tranaction I will need to handle a pre-operation message (pre-validation or pre-operation?) but I'm not sure waht action to take to make sure the tranaction is killed.  On the message, since we are using CRM Online, I assume there would have to be some special way of handling this since it is a server-side event that is being handled. 

    Any help and/or references to examples implementing these actions would be appreciated.    

     

All Replies

  • Monday, June 18, 2012 7:51 PM
     
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    HI Kahuna2000,

                    You can stop the execution and displaying an error to the user by simply throwing an exception from your plugin as follows

    throw new ApplicationException("Cannot delete Primary Record.");

    Regards,
    Damian Sinay

     
  • Monday, June 18, 2012 9:17 PM
     
     
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    Thanks Damian.  This should work.

    Out curiosity, is there a way to display messages from within a plug-in that may be unrelated to an exception condition?

     
  • Monday, June 18, 2012 11:10 PM
     
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    Hi Kahuna,

    As of the latest CRM 2011 rollup updates, the only way to display a message from a plugin to the CRM website is by throwing Exception.

    This is one area that is a bit lacking in CRM and I'm sure Microsoft will look into extending this further in the future.

    Hope this helps.

    Dimaz Pramudya | CSG (Melbourne) | http://www.xrmbits.com | dimaz@xrmbits.com If this post answers your question, please click "Mark As Answer" on the post and "Mark as Helpful"

     
  • Tuesday, June 19, 2012 12:28 AM
     
     
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    Not what I wanted to hear, but appreciate receiving the info. from one who knows.  Thanks much.