Which type exception checking required in linq inside try/catch block while performing CRUD OPERATION

Question

Which type exception checking required in linq inside try/catch block while performing CRUD(create,read,update,delete) OPERATIONS

for eg:

try {
    db.SubmitChanges(ConflictMode.ContinueOnConflict);
}
catch (ChangeConflictException e) {
    foreach (ObjectChangeConflict occ in db.ChangeConflicts) {
        // All database values overwrite current values.
        occ.Resolve(RefreshMode.OverwriteCurrentValues);
    }
}

Answer 1

If it's not well-documented what exceptions will be thrown in normal use-case scenarios (and I can't say off the top of my head what will be thrown in your situation), I suggest trying to break it by performing operations you know will fail, and then add the exception that's thrown to the try/catch block.

If anything, trying to break your own code is a good debugging exercise, as it exposes problems that are likely to occur giving you a chance to recover gracefully.