c# query list of nested objects using dapper
public class Shop {
public int? Id {get;set;}
public string Name {get;set;}
public string Url {get;set;}
public IList<Account> Accounts {get;set;}
}
public class Account {
public int? Id {get;set;}
public string Name {get;set;}
public string Address {get;set;}
public string Country {get;set;}
public int ShopId {get;set;}
}
var lookup = new Dictionary<int, Shop>();
conn.Query<Shop, Account, Shop>(@"
SELECT s.*, a.*
FROM Shop s
INNER JOIN Account a ON s.ShopId = a.ShopId
", (s, a) => {
Shop shop;
if (!lookup.TryGetValue(s.Id, out shop)) {
lookup.Add(s.Id, shop = s);
}
if (shop.Accounts == null)
shop.Accounts = new List<Account>();
shop.Accounts.Add(a);
return shop;
},
).AsQueryable();
var resultList = lookup.Values;
Are there any code examples left?
New code examples in category C#
-
C# 2022-03-27 22:40:23 c# movement script
-
C# 2022-03-27 22:15:17 Delete last modification on EntityFramework Core
-
C# 2022-03-27 22:15:02 file.create folder c#
-
C# 2022-03-27 19:25:04 Error inflating class android.support.constraint.ConstraintLayout
-
C# 2022-03-27 19:15:02 top down shooting in unity 2D
-
C# 2022-03-27 18:50:02 c# remove invalid directory characters
-
C# 2022-03-27 18:30:07 how to use K2 games Games parallax background
-
C# 2022-03-27 18:25:10 c# replace crlf
-
C# 2022-03-27 18:25:09 keycode for left mouse click unity