Where statement in LINQ from sql - linq

Question

I am trying to convert a SQL statement to LINQ.
I have this as SQL:
SELECT mutDetail.*
FROM hallo.Mutatie as mut
JOIN hallo.MutatieDetail AS mutDetail ON mut.MutatieID = mutDetail.fkMutatieID
JOIN tblMedewerker AS med ON med.MedewerkerID = mut.fkMedewerkerID
JOIN tblKlant AS klant ON klant.KlantID = med.fkKlantID
WHERE mutDetail.BronCode = 'Personeelsnummer'
AND klant.KlantNummer = '78555522'
And this is my LINQ statement:
public IQueryable<Mutatie> GetMutatiesInstroom()
{
var mutaties = (from m in context.Mutatie
join mutDetail in context.MutatieDetail on m.MutatieID equals mutDetail.fkMutatieID
join med in context.tblMedewerker on m.fkMedewerkerID equals med.MedewerkerID
join klant in context.tblKlant on med.fkKlantID equals klant.KlantID
select m);
return mutaties;
}
But how to write the where statement in LINQ?
Thank you

Answer 1

I don't know what the problem was, but isn't it simple? Before select m:
where m.BronCode == "Personeelsnummer" && klant.KlantNummer == "8700"
Complete query as requested:
var mutaties = from m in context.Mutatie
join mutDetail in context.MutatieDetail on m.MutatieID equals mutDetail.fkMutatieID
join med in context.tblMedewerker on m.fkMedewerkerID equals med.MedewerkerID
join klant in context.tblKlant on med.fkKlantID equals klant.KlantID
where m.BronCode == "Personeelsnummer" && klant.KlantNummer == "8700"
select m;

Answer 2

It should go here:
public IQueryable<Mutatie> GetMutatiesInstroom()
{
var mutaties = (from m in context.Mutatie
join mutDetail in context.MutatieDetail on m.MutatieID equals mutDetail.fkMutatieID
join med in context.tblMedewerker on m.fkMedewerkerID equals med.MedewerkerID
join klant in context.tblKlant on med.fkKlantID equals klant.KlantID
where (mutDetail.BronCode == "Personeelsnummer" &&
klant.KlantNummer == "8700")
select m);
return mutaties;
}

Answer 3

Here is an example from microsofts documentation on how to add a filter in Linq statement.
var queryLondonCustomers = from cust in customers
where cust.City == "London"
select cust;
https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/linq/basic-linq-query-operations
right under section Filtering