I need some help writing a pug-in to address the following:
We have a custom entity (A) that has a 1:N relationship with a child entity (B). Entity B has an Option Set field where one of the options is "Primary" diesignating that the B record thus designated ia the one and only B record that is "Primary"
among its siblings.
To achieve this we need to assure that one and only one B record at a time is set as "Primary." This means that when the first B record is created, it must be marked as "Primary" and that if among multiple B records the users attempts to change a non-Primary
record to "Primary," the previously designated "Primary" record must be changed to non-Primary so that two primary records do not exist at once.
This will be my first plug-in so I'm not too sure footed. I have read and re-read the SDK plug-in documentation, but it seems very short on information on how to obtain and use information from the Plug-in Data Context.
To accomplish the task, I will need to extract some information from the Context on idnetifying the Parent Record (A above) and Child record (B above). I think I probably need and EntityReference for the parent (A) so I can use it in
a LINQ query (Where Clause) to walk the children and check which are currently set to Primary. I also need to know which child (B) record was just updated or created so I know which one the user intended to be the NEW primary.
If there is more (better) documentation on the contents of the Plug-in Data Context (especially the Input Parameters) that can help me I would appreciate the reference. Also if there are any code samples that are applicable to the
above stated problem, I would love to look at those as well.
Thanks in advance.
