Question

I have a method Which takes a list of objects.
Before persisting the object I have to remove some of them on some given condition

for eg(not the ideal!):

A Company can have an Id and a list of Branches and a IsDeleted flag.
A Branch can have an Id and a list of Managers and a IsDeleted flag
A Manager can have an Id and a IsDeleted flag
Company –>Branches–>Managers

Whats the easy or the best way of filtering to ommit the combination of Id = 0 and IsDeleted = True so I can iterate that and do specifics — see the function below

• Thats if the company is marked as Id = 0 and IsDeleted then I want to ommit that altogether
• But If Only Branch Is marked as Id=0 and Isdeleted then the Company Should be there without a Branch
• If Only the Manager is matrked as Id=0 and Isdeleted then the Company and Branch should be there

Private Function(comp as List(Of Company)) as Boolean
    'filter comp here and pass it to for loop??
    Dim filteredList as ...
    For each c as Company in filteredList 
    'do company specifis here
        For each b as Branch in c.Branches
        'do branch specific here
            For Each m as Manager in b.Managers
            'do manager specific here
            Next
        Next
    Save(c) ' saves child objects as well    
    Next
End Function

Answer 1

Would this solve your problem?

Dim filtererdComp = comp _
    .Where(Function(c) c.Id<>0 Or Not c.IsDeleted)
    .ToList()
For each c as Company in filtererdComp
    c.Branches = c.Branches _
        .Where(Function(b) b.Id<>0 Or Not b.IsDeleted) _
        .ToList()
    For each b As Branch in c.Branches
        b.Managers = b.Managers _
            .Where(Function(m) m.Id<>0 Or Not m.IsDeleted) _
            .ToList()
    Next
Next