Build an OR query expression progressively [duplicate]

Answer 1

if you want it in two steps, you can use union:

var context = new AdventureWorksDataContext();
// Step 1
var query = context.Customers.Where(d => d.CustomerType == "Individual");
// step2 
query = query.Union(context.Customers.Where(d => d.TerritoryID == 3));