如何使用LINQ从xml数据库中选择唯一名称？

Question

i am trying this query to get all the city's

var queryAllCustomers = from cust in loadedCustomData.Descendants("record")
                                select (string)cust.Element("City") ;

so it returns all city's including repeated, but i only want to get distinct city ie to repeat only ones so how to achieve that?

Answer 1

Use Distinct Extension Method

var queryAllCustomers = (from cust in loadedCustomData.Descendants("record")
                            select (string)cust.Element("City")).Distinct();