. Net linq basic query operations

Source: Internet
Author: User

    Get Data Source
 queryAllCustomers =  cust  customers                         cust;
  • Filter
 queryLondonCustomers =  cust  customers                            cust.City ==                             cust;
 cust.City== && cust.Name == 
 cust.City ==  || cust.City == 
  • Sort
 queryLondonCustomers3 =      cust  customers     cust.City ==      cust.Name      cust;
  • Group
 queryCustomersByCity =       cust  customers       cust  cust.City;   ( customerGroup  queryCustomersByCity)  {      Console.WriteLine(customerGroup.Key);       (Customer customer  customerGroup)      {          Console.WriteLine(, customer.Name);      }  }
 custQuery =     cust  customers     cust  cust.City  custGroup     custGroup.Count() > 2     custGroup.Key     custGroup;
  • Join
 innerJoinQuery =     cust  customers     dist  distributors  cust.City  dist.City      { CustomerName = cust.Name, DistributorName = dist.Name };
  • Select

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